• Mount Baker produces andesitic lava flows, pumice, and lahars (volcanic mudflows). (wa.gov)
  • When Hollywood movies depict the destruction unleashed by volcanic eruptions, they usually focus on red-hot lava, but even more dangerous are pyroclastic flows: mixtures of rocky debris and searing hot ash and gas that move as fast as 700 kilometers per hour and can bulldoze, incinerate and suffocate anything in their paths. (earthmagazine.org)
  • Experts say a massive vertical eruption threatening people many miles away will not occur. (nbcnews.com)
  • The vertical eruption lowered the south wall of the mountain and, along with the collapse of the north flank, produced a huge crater with the rim approximately a mile in diameter and at least 2 miles long. (grisda.org)
  • About 13,000 years ago, a series of large tephra eruptions occurred, accompanied by numerous lahars-one eruption was many times the size of the Mount St. Helens 1980 eruption. (wa.gov)
  • A month prior to the 1980 eruption of Mount St. Helens, Voight was contacted by Rocky Crandell, a United States Geological Survey (USGS) employee working in the Vancouver office near the mountain. (wikipedia.org)
  • Still an emeritus professor at Penn State, he initiated an endowment under his name to contribute to the education of volcanic hazard specialists from developing countries. (wikipedia.org)
  • In areas of well monitered volcanic activity you can get hazard zone maps from the local emergency management agency or the U.S. Geological Survey. (hubpages.com)
  • Few geologic events in recent times have attracted more attention than the eruption of Mount St. Helens. (grisda.org)
  • In addition to the spectacular eruption that destroyed environments and human life, interesting associated phenomena with important ramifications for the understanding of past geologic history are being studied. (grisda.org)
  • The debris flow, a curious geologic phenomenon, that began to move down the north fork of the Toutle River appeared to have been lubricated or buoyed up by a steam layer so that the sediments were little disturbed or mixed. (grisda.org)
  • Its mountain ranges are areas of Cainozoic uplift, augmented by large volcanic constructions, and its bordering seas are underlain by unstable shelf areas, especially towards the Java Trench, the subduction zone that lies to the south of the Indonesian island-arc. (nzdl.org)
  • It may have been part of several plants and trees, free-floating in the air as carbon dioxide , locked away in the shell of a sea creature and then buried at the ocean bottom, or even part of a volcanic eruption. (encyclopedia.com)
  • The middle panel shows the OCO-2 data rescaled to show the excess carbon dioxide concentration in the volcanic plume above the background concentration in the region. (wattsupwiththat.com)
  • The figure shows that the volcanic signal is very small - only 1 percent above the background atmospheric carbon. (wattsupwiththat.com)
  • The right panel shows the actual carbon dioxide concentrations highlighting the measurement pixels considered part of the volcanic plume. (wattsupwiththat.com)
  • There are additional reports of eruptions and lahars from the 19th century, and as recently as 1975, fumarole activity and snow melt ramped up dramatically for several years. (wa.gov)
  • On Thursday, fierce heat melted the troops' shovels and the tires on a mechanical digger brought in to plow through more than six feet of debris covering the bunker, which was built for protection from volcanic eruptions, said Maj. (nbcnews.com)
  • With that said, if you should go and visit one of these locations or if you live in an area known for volcanic activity it is a good idea to have the right information to help you escape with your life. (hubpages.com)
  • Knowing this will help you deal with different types of volcanic activity. (hubpages.com)
  • The men fled to the steel shelter on Wednesday while evacuating villagers during a burst of volcanic activity on Mount Merapi, and the bunker was later covered with up to 6 feet of debris as hot as 572 degrees Fahrenheit. (nbcnews.com)
  • While the U.S. government claimed at the time that a shift in the wind spread the fallout far from the test site, a recent U.S. government report demonstrates that it was the volcanic nature of the explosion that dumped the fallout nearby. (gwu.edu)
  • The eruption of Mount St. Helens at 8:32 Sunday morning, May 18, was observed by several people both from the air and from adjacent campsites or logging areas (7). (grisda.org)
  • Natural News ) Volcanic eruptions from thousands of miles away may cause rapid melting of ice sheets, according to a new study. (naturalnews.com)
  • The result of this directed blast (lateral rather unusual in volcanic eruptions) was the devastation of many square miles of terrain in a 160 arc to the north. (grisda.org)
  • The high velocity wind (initially close to 200 miles per hour) (9) produced by the collapse of the mountain was immediately followed by the lateral volcanic eruption. (grisda.org)
  • The eruption that removed over 1300 feet from the top of the beautiful mountain was triggered or preceded by a 4.9 magnitude earthquake (4). (grisda.org)
  • The eruption following the slide eviscerated the mountain, leaving a crater 2000 feet deep. (grisda.org)
  • Putting building debris contaminated by chemical weapons into municipal landfills likely would pose only a minimal risk to nearby communities and the surrounding environment, according to a study scheduled for publication in the July 1 issue of the American Chemical Society journal Environmental Science & Technology . (phys.org)