Steam summit volcanic eruptions. Medical search. Frequent questions

The largest islands are Saunders Island, Montagu Island and Bristol Island, and most volcanoes (except for Vindication) have either fumarolic activity or historical eruptions. (wikipedia.org)
The Ashen Hills consist of a cluster of overlapping pyroclastic cones and feature tuff cones, which are uncharacteristic of South Sandwich Islands volcanoes that mostly lack evidence of highly explosive eruptions. (wikipedia.org)
Three remote volcanoes in Alaska are in various stages of eruption . (naturalnews.com)
Two of the volcanoes are blowing steam and ash, while another is spewing lava. (naturalnews.com)
The AVO has webcams situated near dozens of volcanoes in Alaska to record volcanic activity. (naturalnews.com)
Pavlof is considered one of Alaska's most active volcanoes in the Aleutian volcanic range of active and dormant volcanos. (naturalnews.com)
The majority of Hawai'i Volcanoes National Park will close Friday due to the possibility of an explosive steam event and ash fall. (staradvertiser.com)
Hawaiian Volcanoes Observatory Scientist-in-Charge Christina Neal said scientists believe a small earthquake near the summit triggered a large rockfall into the crater that triggered that explosion from the surface of the remaining lava lake. (staradvertiser.com)
Scientists can forecast volcanic eruptions, but volcanoes are unpredictable as their behavior can change. (yahoo.com)
The Smithsonian Institute said scientists monitor volcanic behavior and historic patterns to forecast volcanic eruptions, but "few volcanoes maintain the same behavior for long (more often than not, as soon as a repetitive pattern becomes apparent, the volcano changes behavior). (yahoo.com)
The Smithsonian Institute's Global Volcanism Project said in 2023, there are 56 active volcanoes with 56 total eruptions. (yahoo.com)
In 2022, there were 80 active volcanoes with 85 total eruptions. (yahoo.com)
In 2021, there were 76 active volcanoes and 81 total eruptions. (yahoo.com)
Shishaldin is one of the most active volcanoes that are part of the Aleutian Island arc, with 26 confirmed eruptions since 1824. (ktvu.com)
The lava put on quite the show for visitors who were able to safely observe the eruption inside the volcano caldera from above it at Hawaii Volcanoes National Park. (weatherboy.com)
Izalco was one of the most frequently active volcanoes in Central America, producing ejecta and lava flows from both summit and flank vents. (wren-clothing.com)
El Salvador is called the land of volcanoes because it has 170 volcanoes in its territory and lies in the Pacific Ring of Fire, one of the areas with the most seismic and volcanic activity on the planet. (wren-clothing.com)
My husband, also a geologist, studies geologic features at the summits of active volcanoes, when he is not helping to look after our baby. (livescience.com)
Meanwhile, the National Park Service has closed to the public nearly 16,000 acres (6,400 hectares) - an area larger than 12,000 football fields - from the Pu'u 'Ō'ō vent to the Pacific Ocean in Hawaii Volcanoes National Park because of potential volcanic hazards. (livescience.com)
Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc, erupting atleast 28 times since 1775. (alaska.edu)
Updated by 2300 UTC every Wednesday and averaging 16 reported volcanoes, this is not a comprehensive list of all eruptions this week, but rather a summary of activity that meet criteria discussed in the "Criteria and Disclaimers" section below. (si.edu)
Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc, with at least 54 episodes of unrest including at least 24 confirmed eruptions since 1775. (alaska.edu)
About 500,000 years ago, vigorous eruptions of lava began building the present cone of Mount Rainier on the wreckage of ancient volcanoes. (icoat.de)
The topography of BC has been continually modified by glacial and steam erosion and the eruption of volcanoes. (whistlermuseum.org)
Kadovar volcano ERUPTS: Mount blows for FIRST time - Major evacuations Kadovar Island and Indonesia sit on the Ring of Fire, which is a long horse-shaped chain of active volcanoes … as that of the 1954 summit eruption, again suggestion that deeper below the collapse area, the plumbing of Kilauea has survived the events of 2018. (zestrestaurant.co.za)
The Hawaii Volcanoes National Park post office closed May 11 "due to the possibility of an explosive steam event and ash fall at the summit of Kilauea Volcano," according to the Postal Service. (linns.com)
Some news from the world of volcanoes: The BBC has a series of videos one the fallout from the EyjafjallajÃ¶kull eruption - including a look at the area around the volcano and how the economy has been affected by the eruption. (scienceblogs.com)
It stands at the north western end of a volcanic chain together with Cordillera, El Mocho, Quetrupillán, Quinquilil and Lanín volcanoes. (turismochile.com)
This is one of the more volcanically active locations in the world, with several active stratovolcanoes (steep-sided volcanoes, like Mount Fuji or Mount St. Helens), a fairly young caldera (large volcanic depressions from super eruptions, think Yellowstone), and hydrothermal fields with colorful hot pots and geysers. (planetary.org)
Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. (wikipedia.org)
Some volcanoes exhibit lateral and Fissure eruptions . (wikipedia.org)
The three andesitic volcanoes at the heart of the park, the mountains Tongariro, Ngauruhoe and Ruapehu, form the southern limits of the Taupō Volcanic Zone, part of the Pacific Ring of Fire. (doc.govt.nz)
Visitors come to Hawai'i Volcanoes NP to enjoy scenic views of lava fields, steam vents, and the Halema´uma´u Crater. (nps.gov)
ANCHORAGE, Alaska - Three remote Alaska volcanoes are in various states of eruption, one producing lava and the other two blowing steam and ash. (0-71.ru)

The Smithsonian/USGS Weekly Volcanic Activity Report provides information about global volcanism on a weekly basis. (gdacs.org)
Here is the latest USGS/Smithsonian Global Volcanism Program Weekly Volcanic Activity Report! (scienceblogs.com)
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. (si.edu)

Mount Michael has a lava lake in its summit crater, which is fumarolically active, and there is widespread evidence of recent eruptions across the island. (wikipedia.org)
We also got news of recent eruptions at NW-Rota 1 from Dr. Ed Kohut off on a research cruise in the Pacific. (scienceblogs.com)
Recent eruptions occurred in 1902, 1966-68, and 1989-90. (alaska.edu)
There are typically gaps of four to 15 years between smaller, more recent eruptions, while larger eruptions appear to take place every 150 to 200 years, with major events recorded in 2011, 1873, 1619. (zestrestaurant.co.za)
The Fantastic Lava Beds are the result of molten flows hardening in motion, and the Devastated Area is a swath of forest leveled by the recent eruptions of Lassen Peak. (fatmap.com)

Scientists at the Hawaiian Volcano Observatory say a steady drop in the Halemaumau lava lake at Kilauea volcano's summit crater indicates that an explosive eruption may occur with little warning. (staradvertiser.com)
Six days into a volcanic eruption that has already forced the evacuation of an estimated 1,800 people from subdivisions in Lower Puna, scientists raised the possibility of an explosive new hazard nearly 30 miles away at the Kilauea summit. (staradvertiser.com)
The lava lake at the summit has been draining at a steady rate, and at about 8:30 a.m. Wednesday the system demonstrated a bit of its explosive potential when it launched an impressive cloud of ash and debris into the air. (staradvertiser.com)
Some volcanic eruptions are not explosive, but others are. (yahoo.com)
Explosive volcanic eruptions can cause gases to escape and tephra - pieces of magma which range from tiny particles to house-size boulders - to move through the air, per the U.S. Department of the Interior . (yahoo.com)
Explosive volcanic eruptions can be dangerous and deadly. (yahoo.com)
European airspace has slowly begun to reopen as the explosive eruptions at EyjafjallajÃ¶kull have become less intense over the last 24 hours. (scienceblogs.com)
I think the shared experience of the seismicity, fissure vent eruption and explosive eruption - along with all the ramifications of the air traffic stoppage over Europe - was a fascinating phenomenon. (scienceblogs.com)
The first is about research conducted by Dr. Robert Sohn at WHOI on explosive undersea eruptions. (scienceblogs.com)
There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions . (wikipedia.org)
Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. (wikipedia.org)
[1] Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive eruption. (wikipedia.org)
On the other extreme, Plinian eruptions are large, violent, and highly dangerous explosive events. (wikipedia.org)
On the evening of December 14, the local volcano observatory raised the alert level to Level 3, which means "magma is close to the crater and hazardous explosive eruption is imminent. (nasa.gov)
In September 2007, a series of explosive eruptions altered the summit of the volcano, the only one that erupts natrocarbonatite lava. (nasa.gov)
The latest ORANGE color code sent by VONA was published on July 19, 2019 at 18:52 WIB and concerns an ash eruption accompanied by rumbling and explosive noises. (lechaudrondevulcain.com)
To date, a significant explosive activity has been recorded with the expulsion of rock fragments and volcanic ash. (lechaudrondevulcain.com)
Geologists warn that Kilauea's summit could have an explosive steam eruption that would hurl huge rocks and ash miles into the sky. (leaderherald.com)

This indicates that the volcano is currently erupting with little to no volcanic ash emissions , but this eruption may pose limited hazards to nearby Alaskan communities. (naturalnews.com)
According to the U.S. Geological Survey, an orange color code is issued when a volcano is exhibiting heightened or escalating unrest with increased potential of an eruption or an eruption is underway with no volcanic ash emissions. (ktvu.com)
With the eruption over and emissions low, the vog has faded away. (weatherboy.com)
The significant volcanic gas emissions were very noticeable in Hawaii in the days after the eruption, especially on the west coast of the island where winds helped carry bring the volcanic emissions to, but relaxed to leave them there. (weatherboy.com)
CENAPRED reported emissions of steam and gas from Popocatépetl during 22-28 October. (si.edu)
Steam, gas, and mud emissions had increased from the largest vent during the previous few weeks. (si.edu)
Web camera images, satellite data and pilot observations over the past week show only minor steam emissions from the mountain's summit crater. (alaska.edu)
Recently, volcanic activity was observed in July of this year with many felt-earthquakes and steam emissions from the summit. (islesmedia.net)
Webcams on Thursday clearly showed episodic low-level ash emissions from Pavlof Volcano, prompting the observatory to raise the volcano's threat level from yellow, or exhibiting signs of unrest, to orange, indicating an eruption is underway with minor volcanic ash emissions. (0-71.ru)

The last major eruption of Arenal took place in 1968. (familytravel.com)
The updated threat assessment was compiled by experts from the three prefectures considered to be most at risk from a major eruption of Japan's tallest and most iconic mountain. (dw.com)
The new report also indicates that a major eruption could release enough lava to sever the main road and rail links that hug the southern coast of the mountain, and block access to the land connection between Tokyo and western parts of Japan. (dw.com)
Other experts, however, have long cautioned that a major eruption is overdue. (dw.com)
Tens of thousands of people living within the danger zone (up to 8 kilometers away) of Mayon Volcano in the Philippines were forced to evacuate to emergency shelters in mid-December 2009 as small earthquakes, incandescent lava at the summit, and minor ash falls suggested a major eruption was on the way. (nasa.gov)
PAHOA, Hawaii - A new fissure in Hawaii's Puna District sent gases and lava exploding into the air, spurring officials to call for more evacuations as residents waited for a possible major eruption at Kilauea volcano's summit. (leaderherald.com)

Scientists at the Hawaiian Volcano Observatory announced the lava lake at Halemaumau has drained off to the point that the magma may soon drop below the level of the water table, which might lead to steam-powered explosions that could blast boulders as large as two yards wide more than a half-mile from the crater. (staradvertiser.com)
Scientists say there is still more magma stored underground that could continue to feed the eruption. (staradvertiser.com)
Volcanic eruptions have to do with magma. (yahoo.com)
Eruptions occur when magma builds up in these chambers and reaches the top. (yahoo.com)
The U.S. Department of the Interior said, "The explosivity of an eruption depends on the composition of the magma. (yahoo.com)
But an intrusion of magma can also result in an eruption. (livescience.com)
Twelve seismometers inside and outside the park record both tectonic earthquakes, which occur in response to stresses within the earth, and volcanic tremors, small earthquakes caused by rising magma shouldering aside existing rock. (icoat.de)
Heightened volcanic activity including magma eruptions has continued for months in the volcano's lower east rift zone, producing devastating lava flows and negatively impacting air quality in the region. (linns.com)
Masaki Kimura, a retired volcano expert at Ryukyu University, warned that pressure building in the magma chamber beneath the volcano, as far back as 2013, has reached levels higher than those that were in place shortly before the 1707 eruption. (dw.com)
Phreatic eruptions are driven by the superheating of steam due to the close proximity of magma . (wikipedia.org)
Phreatomagmatic eruptions are driven by the direct interaction of magma and water, as opposed to phreatic eruptions, where no fresh magma reaches the surface. (wikipedia.org)
However, Columbia University volcanologists found that the eruption of Costa Rica's Irazú Volcano in 1963 was likely triggered by magma that took a nonstop route from the mantle over just a few months. (wikipedia.org)
It's enormous size may allow it to store more magma, leading to larger lava flows when an eruption occurs. (ksnt.com)
Frank Trusdell, research geologist at the Hawaiian Volcano Observatory, which is part of the U.S. Geological Survey, said data indicates that Mauna Loa has a much larger magma reservoir than Kilauea, which may allow it to hold more lava and rest longer between eruptions than Kilauea. (ksnt.com)

Scientists at the US Geological Survey and University of Washington closely monitor Mount Rainier for signs of renewed volcanic activity. (icoat.de)

Earthquakes, steam and speculation were the order of the day. (scienceblogs.com)
On September 10, Kilauea exploded to life after an intense swarm of earthquakes near the summit. (weatherboy.com)
As of 8 a.m. local time today (May 3), the Hawaii County Civil Defense Agency reported that while low-magnitude earthquakes continue to shake the area, the situation is slightly less dire than it was yesterday, and that "an eruption is possible but not imminent. (livescience.com)
The Philippine Seismic Network has recorded a total of one hundred forty-four (144) volcanic earthquakes in the Taal region since 1:00 PM, January 12, 2020. (zestrestaurant.co.za)
The latest eruptions began Sunday night in Hawaii following a series of earthquakes. (zestrestaurant.co.za)
The News reported that St. Pierre was "totally destroyed by earthquakes and volcanic disturbances" and that "almost all the inhabitants-more than 25,000-are said to have been killed. (in.gov)
One of those small earthquakes that precede a volcanic eruption? (chesslerbooks.com)

The annotated photo above shows volcanic gases and water vapor steaming out from the 9,373-foot-tall summit. (ktvu.com)
NASA satellites picked up volcanic gases throughout Thursday and continue to observe strongly elevated surface temperatures. (ktvu.com)
My study addressed the most devastating of all volcanic phenomena, pyroclastic flows, scalding currents of ash, poisonous gases and rocks that shoot down volcanic slopes at hundreds of miles per hour. (livescience.com)
Early in April, Etna had appeared more whimsical, blowing smoke rings composed not of actual smoke, but of steam, volcanic gases, and some volcanic ash. (nasa.gov)
Several types of volcanic eruptions -during which lava , tephra ( ash , lapilli , volcanic bombs , and volcanic blocks ), and assorted gases are expelled from a volcanic vent or fissure -have been distinguished by volcanologists . (wikipedia.org)
However, the Kilauea Volcano and other volcanic features at the park emit noxious gases that can pose serious human and ecosystem health concerns. (nps.gov)
The U.S. Geological Survey's Hawaiian Volcano Observatory said new fissures, ground deformation and abundant volcanic gases indicate eruptions on the eastern flank of Kilauea are likely to continue. (leaderherald.com)

According to Chris Waythomas, a geologist with the Alaska Volcano Observatory (AVO), no Alaskan communities have been affected by the volcanic eruptions. (naturalnews.com)
Shishaldin Volcano in Alaska is erupting lava from the summit and sending ash plumes into the sky, according to the Alaska Volcano Observatory. (ktvu.com)
According to the Alaska Volcano Observatory (AVO), a flight by the volcano on Wednesday confirmed that lava was erupting from the summit of Shishaldin Volcano and was contained to the summit area. (ktvu.com)

Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. (si.edu)
Eruptions at the volcano have produced alternate lava flows and tephra ejection. (wren-clothing.com)
The Black Tusk is a stratovolcano, meaning it is made up of many layers of hardened lava, tephra, pumice, and volcanic ash. (whistlermuseum.org)
Volcanic debris called tephra was deposited over the pre 1995 lake outlet, to form a barrier which became a dam since the lake rose higher than the old outlet. (doc.govt.nz)

The ash plumes produced by the 1989-90 eruption affected air traffic and resulted in minor or trace amounts of ash in the city of Anchorage and other nearby communities. (alaska.edu)
Plumes of steam, gas, and ash often occurred at Mount St. Helens in the early 1980s. (yahoo.com)
Most of Shishaldin's eruptions have consisted of small ash and steam plumes, although the most recent eruption in April-May 1999 produced an ash column that reached a height of 45,000 ft above sea level. (alaska.edu)
PHIVOLCS stated that, between January 29 - February 4, 2020, white steam plumes erupted as high as 800 meters above Taal's main vent and drifted southwest. (zestrestaurant.co.za)
Gas-and-steam plumes were persistent in every Sentinel-2 and NASA Suomi NPP / VIIRS (Visible Infrared Imaging Radiometer Suite) image. (zestrestaurant.co.za)
The SO 2 in eruption plumes reacts with oxygen, water, and particles in the air to form sulfuric acid droplets and solid sulfate particles known as vog (volcanic smog) and corrosive acid rain. (nps.gov)

Coincident satellite imagery did not show an obvious volcanic cloud, however a plume-like meteorologic cloud was evident. (alaska.edu)
During that eruption, a plume of sulfur dioxide was detected by the Ozone Mapper Profiler Suite (OMPS) on the Suomi-NPP satellite. (weatherboy.com)
An LP earthquake at 0130 on 18 September was associated with crater incandescence and a gas-and-steam plume that rose 120 m above the crater rim. (gdacs.org)
You can see the steam plume on the middle flanks of the volcano - this is likely a lava flow coming from the summit vents. (scienceblogs.com)
A small summit crater typically emits a noticeable steam plume with occasional small amounts of ash. (alaska.edu)
A small plume of ash and/or steam is blowing west from the summit. (nasa.gov)
A small plume of ash and/or steam is blowing west from the summit of Mayon Volcano in this image from December 15, 2009. (nasa.gov)
The volcanic plume appears pale blue-gray, distinct near the summit, and growing more diffuse to the south. (nasa.gov)
A 200-m-wide (660 ft) funnel-shaped summit crater typically emits a steam plume and occasional small amounts of ash. (lechaudrondevulcain.com)

This volcanic arc includes the Protector Shoal, Kemp Caldera and Adventure Caldera seamounts and numerous small islands extending over a distance of about 350 kilometres (220 mi), from north to south these are Zavodovski Island, Visokoi Island, Leskov Island, Candlemas Island-Vindication Island, Saunders Island, Montagu Island, Bristol Island, Bellingshausen Island-Cook Island-Southern Thule. (wikipedia.org)
The eruption that got me on this blogging track was still going strong after a year, with at least three domes growing inside the Chaiten caldera. (scienceblogs.com)
Here's an overview of how volcanic eruptions happen, a look back at Mount Vesuvius and an update on Yellowstone Caldera. (yahoo.com)
The lava never left the summit caldera and USGS says the eruption, which ended on September 16, is unlikely to re-start anytime soon. (weatherboy.com)
Eruption of lava from the fissure vents on the downdropped block of Kilauea's summit caldera stopped on September 16, and there was no observable activity anywhere at the summit yesterday or this morning. (weatherboy.com)
But with the location of the eruption contained to the caldera for this event and wind patterns steering pollutants around the south side of the island to the west side, there wasn't that same harmful concentration that was seen in 2018. (weatherboy.com)
The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. (si.edu)
This is an open volcanic caldera of 3.5 km diameter, facing west, and rising to a height of 2,074 meters. (turismochile.com)
The boat approaches the volcano through a breach in the 2 km wide summit caldera, so you can actually step right inside the caldera. (planetary.org)
This is the summit caldera of a stratovolcano, a steep-sided volcano made up of basalts and andesites (slightly more silica than basalt), the rest of which is below the ocean surface. (planetary.org)
Once inside the caldera, you can walk right up into the gaping maw of the active volcano, with gushing steam vents and flowing rivers of acid water. (planetary.org)
The other half of the time it only erupted in the summit caldera. (ksnt.com)
You can also tackle the big hike to Brokeoff Mountain's summit, and peer into the eroded caldera of an ancient volcano that once dwarfed Lassen Peak. (fatmap.com)

HAWAIIAN VOLCANO OBSERVATORY - A diminished eruption continues at the summit of Kilauea volcano, where two of three recently active vents have gone quiet. (bigislandvideonews.com)
It is active and its crater, only 200 meters in diameter, contains a lake of lava at 1,250ºC, with permanent vents of steam and gas. (turismochile.com)
It is active, and its two peaks both have permanent steam and gas vents. (turismochile.com)
One of the steam vents is in the back left, and the sediment-choked stream has many recent sulfur deposits on its banks. (planetary.org)
An eruption from vents on the southwest rift zone could hit residential communities, coffee farms or coastal villages on the west side of the island. (ksnt.com)
Hike a volcano that erupted barely a century ago, and walk among steam vents that spew from its molten core. (fatmap.com)

The Hawaiian Volcano Observatory reported the fissures opened just east of the Puna Geothermal Venture energy conversion plant, where steam and hot liquid are brought up through underground wells and the steam feeds a turbine generator to produce electricity. (leaderherald.com)

A huge ash cloud rises from Overlook Crater at Kilauea's summit on Wednesday, triggered by a rockfall along the steep walls of the crater. (staradvertiser.com)
Mauna Loa's eruptions differ from Kilauea's in part because it is taller. (ksnt.com)
Kilauea's nearly continuous eruption emits sulfur dioxide (SO 2 ) gas and results in volcanic air pollution downwind of the volcano. (nps.gov)
Volcanic activity and certain weather conditions can create high concentrations of SO 2 at Kilauea's summit, impacting the popular Kilauea Visitor Center and Jaggar Museum. (nps.gov)

We also saw impressive eruptions of Llaima in Chile and new fissure eruptions at Fernandina in the Galapagos Islands. (scienceblogs.com)
We do not expect the eruption to resume based on the behavior of past, short-lived summit fissure eruptions (1982, 1975, 1974, 1971)," HVO wrote in an update shared this morning. (weatherboy.com)

Weak phreatic eruptions took place in the 20th century. (volcanodiscovery.com)
Subglacial and phreatic eruptions are defined by their eruptive mechanism, and vary in strength. (wikipedia.org)

The September eruption of the Kilauea Volcano on the Big Island of Hawaii has been declared over by the Hawaii Volcano Observatory (HVO) unit of USGS. (weatherboy.com)
It sits immediately north of Kilauea volcano, which is currently erupting from its summit crater. (ksnt.com)

A moderate gas-steam activity of the volcano continues. (kscnet.ru)
In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FEB RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users. (kscnet.ru)
Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state. (kscnet.ru)
Volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase. (kscnet.ru)
While at this level of activity, trace amounts of ash and a perceptible volcanic haze layer may be intermittently present throughout south-central Alaska. (alaska.edu)
This is the latest volcanic activity recorded in the United States. (naturalnews.com)
Surface eruptive activity is expected to resume when the summit re-inflates to the level preceding the strong deflation. (bigislandvideonews.com)
Volcanic and seismic activity has been increasing at the volcano near the center of Unimak Island in the eastern Aleutian Islands. (ktvu.com)
Volcanic activity started ramping up earlier this week when the alert level was upgraded to an advisory and level yellow aviation color after 'strongly elevated surface temperatures' were detected by a NASA satellite . (ktvu.com)
Overnight webcam views showed no incandescence across the eruption area and an overflight confirmed the lack of activity. (weatherboy.com)
A brief update on activity at EyjafjallajÃ¶kull: Overnight, the lava flows from EyjafjallajÃ¶kull could be seen in the crater of the ice cap - some of the images posted by Eruptions readers are simply stunning. (scienceblogs.com)
Volcanic activity reported here is preliminary and subject to change. (si.edu)
Fumarolic activity near summit had also increased. (si.edu)
The current activity appears to be confined to the deep summit crater and there have been no observations of lava on the flanks of the volcano or surrounding the summit crater. (alaska.edu)
The Pacific Northwest is part of the "Ring of Fire," a global zone of frequent earthquake and volcanic activity along the Pacific Ocean's rim. (icoat.de)
Recent wildfires in northern California and volcanic activity on Hawaii's Big Island have caused the closure of multiple post offices this summer. (linns.com)
No sign of an actual eruption, and no sign of activity under her big sister, Katla. (scienceblogs.com)
The region of volcanic activity that occurs from Mt Ruapehu to White Island in the Bay of Plenty is known collectively as the Taupō Volcanic Zone. (doc.govt.nz)
Volcanic activity in the zone started about 2 million years ago and continues today. (doc.govt.nz)
Volcanic activity continues, with periodic eruptions beneath Crater Lake. (doc.govt.nz)
These conditions occur naturally as a result of ongoing volcanic activity. (nps.gov)
Being the creations of tectonic shifts and volcanic activity, Martinique and St. Vincent always faced the potential threat of violent eruptions. (in.gov)
Two of these installations will be on Savo Island to track volcanic activity in the near environment. (islesmedia.net)
While there's no eruption imminent today, activity persists beneath the surface. (fatmap.com)

British scientists suggested that Antarctica has been experiencing subglacial eruption , which might account for some of the melting of the ice on the southern continent. (scienceblogs.com)

How long did the strombolian eruption of Izalco last? (wren-clothing.com)
A strombolian eruption started around 24 October 1924 at Izalco volcano and lasted until 10 Nov, but shortly resumed on 21 December the same year. (wren-clothing.com)

The eruption was a major sulfur dioxide event and provided one of the most stunning volcano images - well, ever. (scienceblogs.com)
During the May 2018 eruption of Hawaii's Kilauea Volcano's Lower East Rift Zone, sulfur dioxide was covering the surface in a residential neighborhood from erupting fissures. (weatherboy.com)
During the height of that eruption during the spring and summer of 2018, authorities evacuated people from the danger sulfur dioxide posed. (weatherboy.com)
Ash, sulfur dioxide and steam continue to erupt from Nyamuragira in the Congo, although lava flows have abated. (scienceblogs.com)
But then, as I glanced up at the steep, steaming, yellow-sulfur covered crater walls surrounding me, and then glanced down at my feet planted on top of a "cork" plugging the throat of an active volcano, I remembered that this volcano could violently explode at any time. (livescience.com)
his Galileo image of Tupan Patera shows the 80 km diameter volcanic depression with mafic silicate lavas as black and sulfur fluids as reds, yellows, and green. (planetary.org)

Your expert alpine guide will take you up close to one of the raw red craters of this powerful formation, where you can explore the intriguing landscapes of lava formed from the 2002 eruption, and witness the impacts of the volcanic eruption on the infrastructure and environment. (rayburntours.com)
Mt Tongariro's active Red Crater last emitted ash in 1926, and there were eruptions from the Te Maari craters on Mt Tongariro's northern slopes on 6 August 2012 and 21 November 2012. (doc.govt.nz)

This cataclysmic eruption , which occurred on May 18, 1980, is the most significant volcanic eruption in the contiguous U.S. in recent history. (yahoo.com)

Kilauea is well-known for a 2018 eruption that destroyed 700 homes and sent rivers of lava spreading across farms and into the ocean. (ksnt.com)

And while lava generally flows at a relatively slow speed of 10 kilometers per hour (kph) or less, pyroclastic flows of superheated volcanic ash, rock and steam tend to carve a path down the flanks of steep-sided mountains at rates of more than 100 kph. (dw.com)
Dark-colored lava or debris flows from previous eruptions streak the flanks of the mountain. (nasa.gov)

However, if you are willing, I'd like to know your professional/"day job" and your geologic background - be sure, I will not use your real name or connect your Eruptions pseudonym to any information you send. (scienceblogs.com)
Today, families visiting the National Volcanic Monument can learn more about the geologic and biologic history of the area though interpretive talks, walks and theater presentations. (familytravel.com)

The range includes nearby Mount St. Helens and Lassen Peak in California, both of which have exhibited violent eruptions in the 20th century. (icoat.de)
The volcano has a history of violent and deadly eruptions in 1830-40 and in the early 1500s.Through a long-term partnership with USAID, the USGS Volcano Disaster Assistance Program regularly supports volcano monitoring in developing countries around the world. (islesmedia.net)
From there, you'll see a host of other mountains, all of which formed from violent eruptions in the past. (fatmap.com)

Spanning nearly 5 million acres, the protected region is the site of the Novarupta volcano's 1912 eruption, considered to be the 20th century's most powerful and heard as far away as Juneau. (familytravel.com)

Looks like there were some small eruptions from Oldoinyo Lengai in Tanzania. (scienceblogs.com)

Eruption is forecast to be imminent with significant emission of ash into the atmosphere likely. (kscnet.ru)

Volcanic eruption is underway with no or minor ash emission. (kscnet.ru)
Eruption is underway with significant emission of ash into the atmosphere. (kscnet.ru)

Traditionally Ngauruhoe has erupted at least every nine years, although at the time of writing the last eruption was in 1975. (doc.govt.nz)
The last eruption [as of ~ 1950 ] was in 1940 , when at times a column of smoke, lit at night by glowing internal fires, rose as high again as the mountain to nearly 20,000 feet and spread a film of ash far and wide over the highlands and north Serengeti. (ntz.info)

Taal volcano: Eruption intensifies: Lava spews as 'hazardous eruption' feared Eruption intensifies leaving officials concerned of a Volcanic tsunami. (zestrestaurant.co.za)
We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! (volcanodiscovery.com)

Late) Wednesday Whatzits: Hawaiian lava flows, more Katla mongering and a possible eruption at Ruiz? (scienceblogs.com)

Current observations indicate a lava dome is growing in the summit crater. (alaska.edu)

Eruptions from the twelve or more composite cones making up the complex have continued intermittently since. (doc.govt.nz)

However, the most exciting event of the month was the earthquake swarm and potential threat of volcanic eruption in the Harrat Lunayyir region of Saudi Arabia . (scienceblogs.com)
On March 20, 1980, an earthquake of 4.2 magnitude reawakened this volcano, leading to the May 18 collapse and eruption. (familytravel.com)

The volcanic explosivity index (commonly shortened to VEI) is a scale, from 0 to 8, for measuring the strength of eruptions. (wikipedia.org)

Izalco volcano started to erupt on 28 October 1966 from a vent located 550 m on the SSE flank below the summit, the same area that also was active in 1946. (wren-clothing.com)
An eruption of Izalco volcano began on 29 October 1920 from a vent on the upper SE flank and lasted until 1 April 1921. (wren-clothing.com)
Throughout June cloud-free Sentinel-2 thermal satellite images showed elevated temperatures at the summit area and extending down the upper SE flank (figure 38). (zestrestaurant.co.za)
Kronotsky lavas have been dominantly basaltic, with the exception of the small basaltic-andesite summit lava extrusion and a flank lava flow. (volcanodiscovery.com)

It is a volcanic island composed of an active stratovolcano, 990-metre (3,248 ft) Mount Michael, and a cluster of pyroclastic cones on the southeastern side. (wikipedia.org)
Mount Michael is a steep-sided ice-covered conical stratovolcano with a summit crater. (wikipedia.org)
It began erupting in 1770 CE and frequent Strombolian eruptions produced a steep-sided, 650-m-high stratovolcano over a 200-year period. (wren-clothing.com)
Its modern summit cone is also called the Boqueron stratovolcano. (wren-clothing.com)
Located roughly 25 kilometers (15 miles) north-northwest of Sicily's second-largest city, Mount Etna is a stratovolcano composed of layers of rocks, lava, and volcanic ash left by earlier eruptions. (nasa.gov)
The 2-km-wide island of Kadovar is the emergent summit of a Bismarck Sea stratovolcano of Holocene age. (zestrestaurant.co.za)

With funding from the National Science Foundation, I am currently working with Dr. Bruce Houghton of the University of Hawaii as well as Thomas Shea, a Ph.D. student, and Natalie Yacos, a recent college graduate, on a new study aimed at explaining why Vesuvius' vertical gas and ash columns collapsed into pyroclastic flows during the 79 AD eruption. (livescience.com)

Over the past 24 hours summit tiltmeters showed inflation of about 2 microradians until about 11:30 pm HST on February 19, 2023 that turned into deflation of about 1.5 microradians that continues as of 8:00 am HST on February 20, 2023. (bigislandvideonews.com)
A steam and ash explosion from the Shishaldin Volcano in Alaska on July 14, 2023. (ktvu.com)
Chile: se registra temblor de magnitud 3.8 en la ciudad de Socaire 2023-09-30T07:36+0200 . (gdacs.org)
Tiembla en Chile: sismo de 3.7 de magnitud en la ciudad de Socaire 2023-09-30T00:06+0200 . (gdacs.org)

The entrance is very narrow because of the lava flow from the 1973 eruption of Eldfell, Fire Mountain. (expeditions.com)

Generally speaking, as a volcanic eruption approaches, scientists have a better chance of being able to predict when it'll occur. (yahoo.com)
According to the AVO, eruptions from Shishaldin have produced minor and significant ash clouds in the past, and eruptions can occur with little warning. (ktvu.com)

Frequent strombolian eruptions and sometimes lava flows have built a largely unvegetated cone 650 m high which contains a 250 m wide and 50 m deep summit crater. (wren-clothing.com)

Volcano is exhibiting heightened unrest with increased likelihood of eruption. (kscnet.ru)

Water then flows into that super-heated conduit, boils and produces steam. (staradvertiser.com)
You can clearly see the red glow of the strombolian eruptions at the vent, and the glow of the lava flows as they had down the slope of the volcano. (scienceblogs.com)
Lava flows from the eruption in 1926 buried the village of Matazano. (wren-clothing.com)
Eruptions and Debris Flows (Lahars) In addition to the erosive might of glaciers, Mount Rainier's height has been further eroded by a series of large-scale eruptions, collapses, and debris flows. (icoat.de)
The most active volcano in the world with a record long lasting eruption since 1983: images of lava flows, lava lakes, explosions, lava meeting the ocean, aerials and more. (volcanodiscovery.com)
On the one extreme there are effusive Hawaiian eruptions, which are characterized by lava fountains and fluid lava flows , which are typically not very dangerous. (wikipedia.org)
Lava flows reached several hundred meters from the summit, but they were still confined to ravines. (nasa.gov)

Forty-three years ago, a Plinian eruptive column rose into the sky and volcanic debris rapidly spewed from the volcano. (yahoo.com)

The 1989-90 eruption produced mudflows, or lahars, that traveled down the Drift River and partially flooded the Drift River Oil Terminal facility. (alaska.edu)
In 1969,1971, 1975, and 1977 eruptions of Ruapehu generated ash and lahars that damaged the skifields. (doc.govt.nz)

This value is down dramatically from the 190,000 tonnes per day measured just after the onset of the eruption on Sunday, September 10th, and is typical of non-eruptive periods. (weatherboy.com)

Please cite this report as: On the afternoon of 12 January 2020, 43 years after the 1977 eruption, the volcano erupted again, with its alert level rising from Alert Level 2 to Alert Level 4 (on a scale of 0-5). (zestrestaurant.co.za)

This eruption started as an undersea eruption noticed by commercial pilots in the area and quickly became a classic island-building event . (scienceblogs.com)

The summit reaches an altitude of 3,330 meters (10,925 feet) above sea level. (nasa.gov)
This volcano reaches an altitude of 2,847 meters and the summit is covered by a 40 km² glacier. (turismochile.com)

The west side's most populous town would be protected from any Mauna Loa eruption by the presence of another active volcano. (ksnt.com)
Head to Berastagi and hike up the steaming active volcano Sibayak, basking in the glory of misty panoramas from the summit. (intrepidtravel.com)

Civil Defense officials also announced Wednesday that police have evacuated 10 homes on Alaili Road west of Highway 130 because of hazards posed by steaming cracks in the ground. (staradvertiser.com)

Through this process, the mountain reached an elevation that may have been 2,000 feet higher than today's summit. (icoat.de)

A more likely scenario, however, is that smoke from numerous fires in the heavily forested area of western Canada and even Siberia generated a far-traveled haze mistaken for volcanic ash (Little and others, 1999). (alaska.edu)

Diseases1

Chemicals and Drugs1

Phenomena and Processes3

Health Care2

Volcanoes34

Weekly Volcanic Activity Report3

Recent eruptions5

Explosive18

Emissions9

Major eruption6

Magma14

Renewed volcanic activity1

Earthquakes7

Gases7

Alaska Volcano Obs3

Tephra4

Plumes6

Plume9

Caldera13

Vents6

Hawaiian Volcano Obs1

Kilauea's4

Fissure eruptions2

Phreatic eruptions2

Kilauea Volcano2

Activity24

Subglacial1

Strombolian eruption2

Sulfur6

Craters2

Significant volcanic1

2018 eruption1

Flanks2

Geologic2

Violent3

20th1

Lengai1

Imminent1

Underway2

Last eruption2

Volcano eruption2

Possible eruption1

Observations1

Intermittently1

Earthquake2

Explosivity1

Flank4

Stratovolcano6

Pyroclastic flows1

20234

Lava flow1

Occur2

Unvegetated cone1

Unrest1

Flows7

Spewed from the volcano1

Lahars2

Eruptive1

19771

Undersea1

Reaches an altitude2

Active volcano2

Hazards1

Elevation1

Haze1