Explosive eruptions. Medical search. Frequent questions

Classifications of volcanic eruptions were first introduced in the early twentieth century mostly based on qualitative observations of eruptive activity, and over time, they have gradually been developed to incorporate more quantitative descriptions of the eruptive products from both deposits and observations of active volcanoes. (plymouth.ac.uk)
There are about 170 potentially active volcanoes in the U.S. The mission of the USGS Volcano Hazards Program is to enhance public safety and minimize social and economic disruption from volcanic unrest and eruption through our National Volcano Early Warning System. (usgs.gov)
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)
Hunga Tonga-Hunga Ha'apai is located in region of the South Pacific that's jam-packed with volcanoes-some above the waves, some far below-that have a penchant for violent eruptions. (nationalgeographic.com)
Learn about the major types of volcanoes, the geological process behind eruptions, and where the most destructive volcanic eruption ever witnessed occurred. (nationalgeographic.com)
500 million people live in proximity of volcanoes and eruptions have a significant social and economical impact, thus forecasting the recurrence rate of volcanic eruption remains a great challenge in science. (europa.eu)
Eruptions from oceanic volcanoes are usually? (studystack.com)
Mount Sakurajima is one of the world's most active volcanoes , with hundreds of years of recorded eruptions. (livescience.com)
Many frequently erupting volcanoes, like Hawaii's Kilauea volcano, gush basalt, a liquidy lava that has trouble holding onto the gas bubbles that cause explosive eruptions. (livescience.com)
Volcanoes have continued to erupt (some 61 eruptions with VEI magnitudes greater than 3 have taken place since 2010), and in this revised and updated edition, the authors describe the largest of these, and the ones that have had the most impact on society. (wiley-vch.de)
Volcanoes, Second Edition, contains more than 80 new photographs and figures to better illustrate volcanic features and processes, with an updated Bibliography that includes important papers describing recent eruptions and new findings. (wiley-vch.de)
Shield volcanoes are a unique type of volcano characterized by their shape, eruption style, and composition. (hawaiistar.com)
Unlike some other types of volcanoes that have explosive eruptions, shield volcanoes are known for their relatively calm and non-explosive activity. (hawaiistar.com)
Instead of explosive eruptions, shield volcanoes often have what is known as effusive eruptions. (hawaiistar.com)
This continuous, non-explosive activity is one of the reasons why shield volcanoes can grow to such large sizes. (hawaiistar.com)

Such eruptions result when sufficient gas has dissolved under pressure within a viscous magma such that expelled lava violently froths into volcanic ash when pressure is suddenly lowered at the vent. (wikipedia.org)
An explosive eruption begins with some form of blockage in the crater of a volcano that prevents the release of gases trapped in highly viscous andesitic or rhyolitic magma. (wikipedia.org)
The pressure of the magma builds until the blockage is blasted out in an explosive eruption through the weakest point in the cone, usually the crater. (wikipedia.org)
The sudden release of pressure causes the gases in the magma to suddenly froth and create volcanic ash and pumice, which is then ejected through the volcanic vent to create the eruption column commonly associated with explosive eruptions. (wikipedia.org)
By analysing crystal cumulate nodules (igneous rocks formed by the accumulation of crystals in magma) discovered in pyroclastic deposits of major eruptions, the scientists found that pre-eruptive mixing within the magma chamber - where older cooler magma mixed with younger hotter magma - appears to be the repeating trigger in large-scale eruptions. (southampton.ac.uk)
These nodules trapped and preserved the final magma beneath the volcano immediately before eruption. (southampton.ac.uk)
Dr Rex Taylor, Senior Lecturer in Ocean and Earth Science at the University of Southampton, investigated nodules and their trapped magma to see what caused the eruptions. (southampton.ac.uk)
Rims of crystals in the nodules grew from a very different magma, indicating a major mixing event occurred immediately before eruption. (southampton.ac.uk)
Stirring young hot magma into older, cooler magma appears to be a common event before these explosive eruptions. (southampton.ac.uk)
The very presence of mushy nodules in the pyroclastic deposits suggests that the magma chamber empties itself during the eruption, and the chamber then collapses in on itself forming the caldera. (southampton.ac.uk)
But an explosive eruption would send volcanic ash, smoke, and magma into the atmosphere , leading to impacts of flights that cross the Atlantic, says FOX Weather Senior Meteorologist Jordan Overton. (yahoo.com)
Modelling of strain rates within a conduit can also reveal the depths (or lack) of magma fragmentation prior to eruption. (smitchellscience.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)
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)
This creates a lot of magma that tends to be sticky and filled with gas-a potent recipe for explosive eruptions. (nationalgeographic.com)
This thesis consists of two parts that address bubble coalescence and the degassing process inside the magma conduit during volcanic eruptions. (rice.edu)
Through numerical modeling of diffusive bubble growth during eruptive magma ascent, I conclude that magma permeability is unlikely a sufficient condition for the transition from explosive to effusive activity. (rice.edu)
Instead, it is likely that a decrease in magma ascent leads to the transition from explosive to effusive activity during the waning stages of the eruption. (rice.edu)
In an article in Earth and Planetary Science Letter we discussed the impact of the magma water content on the structure of magma reservoir and their capacity to feed large volcanic eruption. (europa.eu)
While this provides a solid base on which to build this project, the lack of data on the distribution of key parameters controlling the recurrence rate of volcanic eruptions, such as the global distribution of the flux of magma from depth, jeopardizes our ability of determining the probability of explosive eruptions of different sizes to occur on Earth in a given time period. (europa.eu)
Explosive eruptions are most likely to be caused by magma with? (studystack.com)
Volcanos produced from granitic magma are rare, but they can be the most explosive of all eruptions. (rocksandminerals4u.com)
But an intrusion of magma can also result in an eruption. (livescience.com)
One intriguing thing at Etna is that the more explosive eruptions in recent millennia have often been related to the very fast uprise of primitive and volatile-rich magma (such as picrite in the 4ka B.P. eruption), and in the past 30-40 years, there is a clear influx of more primitive magma into the feeding system of this volcano. (scienceblogs.com)
The eruption we saw on Saturday blasted rock, water, and magma 30 km high into the atmosphere, and was profound in terms of its energy. (cnn.com)
On Saturday, the eruption of magma from the volcano created a sudden release of pressure, producing supersonic air pressure waves that could be seen from space . (cnn.com)
This indicates when the eruption occurred, the sudden loss of magma likely caused the central portion of the volcano to collapse, creating a caldera, or a hollow depression. (cnn.com)
Basaltic fissure eruptions account for the bulk of the Earth's magma output (Sigurdsson 2000 ). (springer.com)
Previous studies of vent localization and termination of basaltic fissure eruptions have focused on thermo-rheological effects and the solidification of magma in the feeder dyke. (springer.com)
Scientists infer that the eruption style is determined by the amount of magma being supplied to the volcano. (usgs.gov)
Eventually, magma supply increases and effusive eruptions dominate as many lava flows fill the caldera and erupt from the rift zones. (usgs.gov)
The caldera collapsed to a depth of at least 620 m (2030 ft), where magma and external water interacted to trigger powerful phreatomagmatic (water plus magma) eruptions. (usgs.gov)

Historical eruptions of Santa Ana include small-to-moderate explosive eruptions. (nasa.gov)

FILE - REYKJAVIK, ICELAND - MAY 15, 2010: Ash plume from Iceland's Eyjafjallajokull crater during it's eruption, spewing tephra and ashes that drift toward continental Europe on May 15, 2010 near Reykjavik, Iceland. (yahoo.com)
Eruption source parameters (ESPs) used to characterize explosive eruptions are estimated from tephra deposit data using different models (statistical or numerical) and inversion approaches. (plymouth.ac.uk)
Volcanic rocks are erupted as lava flows or lava domes during nonexplosive (effusive) eruptions or as shattered bits of rock (volcanic ash, tephra, and volcanic bombs which are collectively called pyroclasts) during explosive eruptions. (nps.gov)
Long periods of explosive (tephra-dominated) and effusive (lava-flow-dominated) activity have alternated at Kīlauea for the past 2,500 years. (usgs.gov)
Numerous explosive eruptions lasted for a period of about 1,200 years, producing the Uwekahuna tephra. (usgs.gov)

Air traffic controllers and pilots must be quickly notified of volcanic eruptions to avoid volcanic ash clouds. (yahoo.com)

The eruption of the Hunga-Tonga-Hunga-Ha'apai volcano on Saturday was so large, it was a spectacle best appreciated from space . (cnn.com)
Based on my research, using radiocarbon dating to examine the ash and deposits from past eruptions, it seems this latest eruption is a once-in-a-millennium event for the Hunga-Tonga-Hunga-Ha'apai volcano. (cnn.com)

The eruption tossed large volcanic cinders (pieces of hot lava) more than 5,900 feet (1,800 meters) from the volcano's Showa crater, one of two active craters atop Sakurajima. (livescience.com)
By studying these layers, scientists can gain valuable insights into the volcano's eruption history and the processes that have shaped the landscape over time. (hawaiistar.com)
The volcano's last major eruption was in the 9th Century AD, but it was so powerful that it devastated the entire area. (unknowncountry.com)

However, in the case of the eruption of Mount St. Helens, the pressure was released on the side of the volcano, rather than the crater. (wikipedia.org)
Alternately, when an eruption has contact with snow, crater lakes, or wet soil in large amounts, water mixing into the flow can create lahars, which pose significant known risks worldwide. (wikipedia.org)
Coombs called the 4:17 a.m. eruption as the "the biggest so far" at the summit and that it may have relieved pressure temporarily in the caldera at Halemaumau Crater. (pipestoneflyer.ca)
A 17-minute explosive eruption destroys instruments inside the crater. (visitmtsthelens.com)
The Kamchatkan Volcanic Eruptions Response Team observed a lava dome growing in the crater, and warns that another explosive eruption could occur at any time. (nasa.gov)

The Vanuatu volcano eruption is yet another reminder of how volatile parts of our planet can be, with reports showing that the ask kicked up from the event was sometimes sent hurtling 100 meters into the sky. (bgr.com)
However, not long after, explosions from the Vanuatu volcano eruption began to ring out across the nearby shore. (bgr.com)
However, the most recent Vanuatu volcano eruption does not appear to have created an tsunamis based on information coming from the area. (bgr.com)

A U.S. Geological Survey volcanologist described the pre-dawn explosive eruption at the summit of Kilauea as "short-lived" and not having a "widespread impact. (pipestoneflyer.ca)
Scientists reported an "explosive eruption" at the summit of Kilauea volcano shortly before 4:20 a.m. today that ejected a large plume of ash in the air, and authorities urged residents in the path of the ash to shelter in place. (pipestoneflyer.ca)
The Hawaiian Volcano Observatory reports that that the explosive eruption at Kilauea summit occurred at 4:17 a.m. (pipestoneflyer.ca)
That's because the island of Hawaii is home to Kilauea, a shield-shaped volcano that was formed by successive lava eruptions. (livescience.com)
The eruption of the Kilauea volcano on the Big Island of Hawaii is spewing more than molten lava and ash. (worthynews.com)
Ballistic blocks' the size of microwave ovens shot from Hawaii's Kilauea volcano on Wednesday in what may be the start of explosive eruptions that could spew huge ash plumes and hurl smaller rocks for miles (km), the U.S. Geological Survey said. (worthynews.com)

[15] The three-month-long plinian eruption that began on 9 May 1783, produced andesitic pumice falls, pyroclastic flows, lava flows, and enlarged the cone. (wikipedia.org)
Rhyolite or obsidian are made when the lava flows more smoothly from the eruption, but it takes especially quick cooling to produce obsidian from the smooth flow. (rocksandminerals4u.com)
This shape is a result of the lava flows that are emitted during their eruptions. (hawaiistar.com)
During these eruptions, the lava flows steadily from the volcanic vent, slowly building up the shield-shaped cone over time. (hawaiistar.com)
Hawaiian basaltic eruptions commonly initiate as a fissure, producing fountains, spattering, and clastogenic lava flows. (springer.com)
2016 ). Furthermore, evidence of clastogenic eruption processes, such as spattering and fountaining, can be lost if pyroclastic material becomes agglutinated and/or forms rheomorphic lava flows (Sumner et al. (springer.com)
Map showing the subaerial extents of lava flows and explosive deposits from Kīlauea, 1790-2018. (usgs.gov)

Scientists were watching the United States' famous Yellowstone National Park, Tuesday, January 6, after hundreds of earthquakes there late December and last week - prompting fears they are the prelude to the world's most powerful volcanic eruption. (worthynews.com)

Vulcanian eruption Peléan eruption Plinian eruption Phreatic eruption Phreatomagmatic eruption Surtseyan eruption Consequences: Eruption column Pyroclastic flow Pyroclastic fall Pyroclastic surge Pyroclastic flows occur toward the end of explosive eruptions, as volcanic gases are depleted and the gas pressure that supports the eruption column declines. (wikipedia.org)
[12] Records suggest that the magnitude of this plinian eruption was twice as large as that of the Tenmei catastrophe in 1783 . (wikipedia.org)
I analyze porosity and permeability of rhyolitic pyroclasts from four different Plinian eruptions. (rice.edu)
I find that the Kaharoa samples have the lowest values of porosity and permeability of these four Plinian eruptions. (rice.edu)
Plinian eruption. (rice.edu)

Explosive volcanic eruptions can produce large sequences of pyroclastic deposits that reveal eruptive intensities, durations, and significant changes in eruptive styles. (smitchellscience.com)
We present results from a detailed field investigation of the proximal deposits of episode 1 of the 1969 fissure eruption of Mauna Ulu, Kīlauea, Hawai'i. (springer.com)
Since Kīlauea's surface is dominantly covered by young deposits, only the eruption record of the past 2,500 years is suitably well-known. (usgs.gov)

Additional research within explosive eruptive products re-evaluated appropriate clast sizes for accurate measurements of density (vesicularity) within pumice. (smitchellscience.com)
The climactic eruption began on 4 August and lasted for 15 hours, [16] and contained pumice falls and pyroclastic flows. (wikipedia.org)
and these events which were accompanied by a high eruption plume which generated further injections of pumice into the air. (wikipedia.org)
When the eruptions are explosive, pumice or tuff is the result. (rocksandminerals4u.com)

GOES-18 (GOES-West) SO2 RGB and Ash RGB images (above) showed the complex transport of a volcanic cloud (shades of yellow in the SO2 RGB imagery) produced by an explosive eruption of Mount Shishaldin that began around 1340 UTC on 25 September 2023. (wisc.edu)
GOES-18 (GOES-West) SO2 RGB and Ash RGB images (above) showed the east-southeastward drift of a volcanic cloud produced by an explosive eruption of Mount Shishaldin that began shortly before 1600 UTC on 05 September 2023. (wisc.edu)

Jacob and Hauksson (1983) additionally list that this eruption had explosions that were heard 30 miles away, plumes to 1000' feet high on September 23, and earthquakes. (alaska.edu)
Between October 5 and October 11, 2005, the Santa Ana (Ilamatepec) Volcano produced a series of eruptions consisting of small explosions, gas emissions, and low or moderate seismic activity. (nasa.gov)

Through detailed field mapping, including measurements of the height and internal depth of lava tree moulds, we reconstruct high-resolution topographic maps of the pre-eruption ground surface, the lava high-stand surface and the post-eruption ground surface. (springer.com)
By contrast, segments with relatively shallow inundation (typically less than ~ 1 m), such as where the fissure intersects pre-eruptive topographic highs, or where flow away from the vent (outflow) was efficient, are often associated with sub-circular vent geometries in the post-eruption ground surface. (springer.com)
The spatial and temporal patterns of the VNCU were mainly driven by the post-eruption climate and moderated by the negative phase trends of El Niño-Southern Oscillation and the Atlantic multidecadal oscillation. (bvsalud.org)

Sometimes a lava plug will block the conduit to the summit, and when this occurs, eruptions are more violent. (wikipedia.org)
Open questions, processes and parameters that need to be addressed and better characterized in order to develop more comprehensive classification schemes and to advance our understanding of volcanic eruptions include conduit processes and dynamics, abrupt transitions in eruption regime, unsteadiness, eruption energy and energy balance. (plymouth.ac.uk)
Large cumulative strain in volcanic conduits can produce very elongate tube vesicles, but flaring (opening) of a conduit near the vent can reduce strain, permitting bubbles to retain a more spherical shape upon eruption. (smitchellscience.com)
In a previous study of the 2012 Havre submarine eruption, strain rates were found to be too low to result in magmatic fragmentation in the conduit. (smitchellscience.com)

The eruptions of supervolcanoes are the rarest of volcanic eruptions but also the most destructive. (wikipedia.org)
The Las Cañadas volcano is an IAVCEI (International Association of Volcanology and Chemistry of the Earth's Interior) Decade Volcano - identified by the international community as being worthy of particular study in light of their history of large, destructive eruptions and proximity to populated area. (southampton.ac.uk)

These geysers are formed by a mixture of hot water and steam that is constantly boiling, and the eruptions can occur at any time without warning. (edecorhomes.com)

In volcanology, an explosive eruption is a volcanic eruption of the most violent type. (wikipedia.org)

Co-author of the study, Dr Tom Gernon, Lecturer in Ocean and Earth Science at the University of Southampton, says: "The analysis of crystal nodules from the volcano documents the final processes and changes immediately prior to eruption - those triggering the catastrophic eruptions. (southampton.ac.uk)
What are the physical processes that control the size and frequency of volcanic eruptions at regional and global scale? (europa.eu)
The frequency at which volcanic eruptions occur is inversely proportional to their size but only recently we contributed to identify some of the physical processes controlling this relationship. (europa.eu)
We conclude that lava inundation and drainage processes in basaltic fissure eruptions can play an important role in controlling their localization and longevity. (springer.com)
Ammonia is released to the atmosphere by natural processes such as the decay of organic matter and animal excreta, or by volcanic eruptions. (cdc.gov)
Our results emphasized the response and recovery processes of VNCU to volcanic eruptions without the strong anthropogenic forcings, while the influence mechanisms of natural forcing on VNCU should receive more attention. (bvsalud.org)

She said it was a "real dynamic situation up there" on the summit, and that similar explosive events are still possible. (pipestoneflyer.ca)
The Hawaiian Volcano Observatory reports that an explosive eruption at Kilauea's summit has occurred and expects the resulting ash plume to cover the surrounding area. (pipestoneflyer.ca)
Explosive eruptions occurred at the summit of Asama volcano on 26 April. (wikipedia.org)
The U.S. Department of Agriculture said, "After the eruption, the summit of Mount St. Helens was gone, forests were obliterated and rivers followed new courses. (yahoo.com)
Sometime between 850 and 950 CE, the most powerful explosive eruption known to have occurred from Kīlauea sent rocks weighing 4.4 kg (9.7 lbs) at least 5 km (3 mi) from the summit. (usgs.gov)

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)
Events of this magnitude occur roughly once a decade around the world, but for this volcano an eruption of this scale is a rarity. (cnn.com)

Scientists from the University of Southampton have identified a repeating trigger for the largest explosive volcanic eruptions on Earth. (southampton.ac.uk)

A notable example is the 1980 eruption of Mount St. Helens. (wikipedia.org)
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)

As volcanic and seismic activity continues to rattle southwestern Iceland with thousands of small earthquakes, scientists remain on alert, still declaring that there is a 'significant likelihood' of volcanic eruption in the coming days. (yahoo.com)
Scientists also assess volcano hazards and work with communities to prepare for volcanic eruptions. (usgs.gov)
[10] Scientists have noted a range of textural variety in the ash which has been deposited in the region during the serial eruptions since the Tennin eruption of 1108. (wikipedia.org)
Generally speaking, as a volcanic eruption approaches, scientists have a better chance of being able to predict when it'll occur. (yahoo.com)
Scientists are still developing ways to better predict volcanic eruptions. (yahoo.com)
Scientists and a rattled public are eager to know what caused such a powerful eruption, and what may happen next. (nationalgeographic.com)
Thus, ForEcasting the recurrence rate of Volcanic ERuptions remains a challenge of paramount importance for Earth scientists. (europa.eu)

In some cases, the hot spring will eventually form into a geyser, as the pressure from the steam builds up and leads to explosive eruptions. (edecorhomes.com)
Visiting a geyser provides a unique and awe-inspiring experience, as visitors can witness the explosive power of boiling water and steam as it shoots into the air. (edecorhomes.com)

The timescale between these eruptions is generally marked by hundreds of thousands of years. (wikipedia.org)
The Las Cañadas volcanic caldera on Tenerife, in the Canary Islands, has generated at least eight major eruptions during the last 700,000 years. (southampton.ac.uk)
In a scientific article in Nature Communications we perform calculations and modelling and propose a mechanisms leading to the formation of resurgent domes (uplift of the base of a caldera tat can reach 1000 m in few thousands of years) after caldera forming eruptions. (europa.eu)
if anything it is now in one of its most vigorous and intense moments during recorded history, and indeed some of us are well aware that eruptions like in 122 B.C. or - if we don't want to cite the disputed 1500 B.C. event - about 4000 years ago (Coltelli et al. (scienceblogs.com)
Within a climatic background, we found that VNCU of the QTP tends to decrease after large volcanic eruptions, lasting until about 3 years, with a maximum decrease value occurring in the following 1 year. (bvsalud.org)

And, overall, I guess that the probability that we will see a major flank eruption from vents at very low elevation on the flank of Etna - like in 1669 - is much higher than that of a large and potentially devastating explosive eruption. (scienceblogs.com)
Explosive eruption, flank collapse and megatsunami at Tenerife. (berkeley.edu)

The low viscosity allows the lava to flow easily and smoothly, rather than building up pressure and causing explosive eruptions. (hawaiistar.com)

When the pressure falls, the eruption column begins to collapse in on itself, and ash and rock fall back to the ground and flow down the slopes of the volcano. (wikipedia.org)

Commission on Explosive Volcanism (CEV). (wikipedia.org)
For the most part, this would be like the volcanism that gave us Iceland - passive, gentle and only rarely explosive. (newscientist.com)

By comparison, even the smallest of these eruptions expelled over 25 times more material than the 2010 eruption of Eyjafjallajökull, Iceland. (southampton.ac.uk)
ET: New data from the Iceland Meteorological Agency Monday evening has indicated that an explosive eruption is now unlikely after initial fears that it was within the realm of possibility. (yahoo.com)
When we start to have eruptions on Iceland, there is an impact for the U.S. and Europe because of the pathways the planes take to get from the U.S. over to Europe fly right over Iceland,' says FOX Weather Meteorologist Britta Merwin . (yahoo.com)
Iceland is bracing for a volcanic eruption. (yahoo.com)
On the other hand, hot-spring geysers, such as those found in Iceland, have less predictable and more irregular eruptions. (edecorhomes.com)

Progressive localization causes a change in the eruption parameters, such as an increase in fountain height (Wilson et al. (springer.com)

There is a lack of old exposed rock at Kīlauea, which makes it difficult for geologists to piece together its complete eruption history. (usgs.gov)

Here's an overview of how volcanic eruptions happen, a look back at Mount Vesuvius and an update on Yellowstone Caldera. (yahoo.com)
Importantly, we show that eruptions are significantly less likely to occur within the uplifting base of the caldera. (europa.eu)
Prolonged periods of explosive eruptions at Kīlauea may require the presence of a caldera to sustain them. (usgs.gov)

Regular geysers are characterized by their periodic and predictable eruptions, while hot-spring geysers have more irregular and unpredictable eruptions. (edecorhomes.com)
Its eruptions are predictable and occur approximately every 90 minutes, lasting for about two minutes and reaching heights of up to 184 feet. (edecorhomes.com)
Are volcanic eruptions predictable? (yahoo.com)

With this project, I am building a research group focusing on the construction of physically based statistical models able to quantify the probability of explosive eruptions of different magnitudes to occur at regional and global scale in a defined time-interval. (europa.eu)

Besides the potentially devastating impacts to the town of Grindavík and the surrounding area from a potential eruption, any large ash plume could wreak havoc on international air travel . (yahoo.com)
If an explosive eruption occurred and generated a large ash cloud, one scenario would have ash blown west toward Greenland, then veering back to the north then east toward Northern Europe , according to the FOX Forecast Center. (yahoo.com)
Would a large scale eruption (VEI 5 or greater) of Mt. Etna like the ones occurred in 122 BC and 1500 BC (disputed) be possible again in the foreseeable future? (scienceblogs.com)

In another article in the same journal we show how the flux of carbon dioxide from depth could trigger volcanic eruptions. (europa.eu)

In the past, we've seen volcano eruptions create massive tsunamis . (bgr.com)
There is evidence across the U.S. west of past eruptions of the Yellowstone volcano. (rocksandminerals4u.com)
These layers can be seen in the exposed sides of the volcano, revealing the history of past eruptions. (hawaiistar.com)
Linked to major volcanic eruptions around 536 and 540 CE, the onset of the Late Antique Little Ice Age has been described as the coldest period of the past two millennia. (bvsalud.org)

North American news media generally downplayed the story, and did not mention the sudden increase in eruptions, or the fact that such a dramatic increase in eruptions that are not accompanied by significant releases of gas and ash are a cause for concern. (unknowncountry.com)
It is currently believed that the explosive release of the thread is caused by a sudden release of springlike tensions stored in the collagenous structural compartment. (medscape.com)

Explosive eruptions can expel as much as 1,000 kg (2,200 lb) per second of rocks, dust, gas and pyroclastic material, averaged over the duration of eruption, that travels at several hundred meters per second as high as 20 km (12 mi) into the atmosphere. (wikipedia.org)

In the aftermath of the eruption, images from satellite radar imagery show the central part of the volcano which previously rose above sea level has since disappeared below the waves. (cnn.com)

This superlative textbook will enable students who may never see an erupting volcano to evaluate news stories about far-away eruptions, and to distinguish between overly sensational stories and factual reporting that puts facts in context. (wiley-vch.de)
For an accurate news story on the current eruption, click here. (unknowncountry.com)

For now, though, all the locals can do is wait and see how these most recent Vanuatu volcano eruptions play out and whether or not additional problems crop up over the coming days. (bgr.com)
Samuel has also been involved in more recent efforts to assess effusive-explosive transitions at La Soufriere volcano (St. Vincent and the Grenadines) and Pululahua Dome Complex (Ecuador) through use of ash grain size distribution and componentry analysis. (smitchellscience.com)
A Landsat 8 image of Sakurajima volcano in Japan, snapped Aug. 19, shows ash from a recent eruption drifting toward the nearby city of Kagoshima. (livescience.com)
The Sheveluch Volcano, top center, left a broad field of ash on the snow after its most recent eruptions. (nasa.gov)

Indonesia's most volatile volcano has spewed smoke and ash in the latest of several eruptions in less than two weeks. (worthynews.com)

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