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Latest Pyroclastic flow Stories

Volcanic Activity Led To Demise Of Chinese Dinosaurs: Study
2014-02-05 07:45:33

[ Watch the Video: Pyroclastic Eruptions Preserved Fossil Beds In China ] April Flowers for redOrbit.com - Your Universe Online The exceptional preservation and diversity of dinosaur, bird and early mammal fossils present in the fossil beds of northern China are famous. How these creatures died, and why hundreds of creatures from different habitats were buried together on ancient lake floors, has yet to be understood. A new study, published in Nature Communications, claims that the...

Thousands Flee After Repeated Eruptions On Sumatra's Mt. Sinabung
2013-11-15 13:43:54

Lawrence LeBlond for redOrbit.com - Your Universe Online Several thousand people have been evacuated from the Tanah Karo district of North Sumatra following a volcanic eruption on Mount Sinabung. The volcano, which has emitted several sizeable eruptions over the past few months, is now threatening 10 nearby villages in the region, with fears of pyroclastic flow and hot ash raining down from above. Following Thursday’s eruptions, one that was reported at around 6:57 am local time and...

Supervolcanic Ash Can Transform Into Lava Miles Away From Eruption
2013-08-28 06:33:27

Lawrence LeBlond for redOrbit.com - Your Universe Online New research has taken a closer look at how ash produced from supervolcanoes can turn back into lava once it falls back to Earth. Supervolcanoes, such as the Yellowstone caldera, are capable of producing eruptions thousands of times stronger than normal volcanoes. Such a massive eruption can produce an ash cloud that is so hot it has the ability to re-form into lava once it hits the ground much farther away. This evidence was...

Japanese Volcano Produces Largest Eruption In Nearly A Century
2013-08-19 07:06:54

Lawrence LeBlond for redOrbit.com - Your Universe Online One of the world’s most active volcanoes showed its ugly side this weekend, erupting and producing an ash cloud that spread out across one southern Japanese city. Sakurajima, a volcano that sits in the background of the southern Japanese city of Kagoshima and is known for producing hundreds of small explosions per year, erupted Sunday in one of the volcano’s largest explosions in decades and perhaps the largest since an...

Volcanic Eruption Buried Ancient Rhino
2012-11-23 07:09:37

April Flowers for redOrbit.com - Your Universe Online Although less than two percent of the fossils on earth are preserved in volcanic rock, researchers from the University of Montpellier have identified a new one. They found the skull of a rhino that perished in a volcanic eruption 9.2 million years ago. Found in Turkey, the fossil is thought to be that of a large two-horned rhino (Ceratotherium neumayri) that was common in the Eastern Mediterranean during that period. The unusual...

Guatemala On Alert After Fuego Spews Lava And Ash
2012-05-21 07:04:36

Guatemalan authorities raised an alert after the country´s most active volcano, Fuego, began spewing lava and columns of ash into the air at around 2:45 a.m. (0745 GMT) on May 19. Fuego, which overlooks the tourist hotspot of Antigua, shot ash 16,400 feet into the air and spewed lava 1,300 feet high and up to 3,280 feet long, according to a statement by Guatemala´s National Seismology, Vulcanology, Meteorology and Hydrology Institute. The disaster agency´s David de Leon...

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2011-06-03 10:45:16

A 3-D model of a volcanic explosion, based on the 1980 eruption of Mount St. Helens in Washington state, may enhance our understanding of how some volcanic explosions occur and help identify of blast zones for potentially dangerous locations, according to an international team of volcanologists. "We took on the modeling of enormously complicated pyroclastic density currents, notably the classic, notorious May 1980 lateral blast that destroyed 500 square kilometers of forested terrain at Mount...

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2009-12-21 11:35:00

Government officials in the Philippines say that Mayon volcano could erupt violently within days, following a week of spectacular flows of lava and increasing volcanic quakes, The Associated Press reported. Some 3,000 villagers are still lingering around the volcano even after government warnings to leave the danger zone. Gov. Joey Salceda said tens of thousands of people have already been evacuated from the foothills of Mayon, which on Monday emitted lava fountains, powerful booming noises,...

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2009-01-22 09:06:30

When volcanoes erupt, pinpointing the regions at high risk for lethal hazards and deciding whether or not to evacuate a resistant population comprise the most difficult problems faced by hazards managers. Now a team of volcanologists has a program that maps potential problem areas quickly, taking much of the guesswork out of decision making and evacuations. "We wanted to be able to predict the areas affected by pyroclastic flows from volcanoes," said Christina Widiwijayanti, post-doctoral...

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2008-01-11 16:02:49

Thursday's volcanic eruption may have just been a warm-up. Tungurahua, a volcano in Ecuador which has been active since 1999 began releasing high levels of energy on December 22, 2007, less than a month ago. On Thursday, Tungurahua flung firey rocks and a column of ash and steam shot 1.5 miles above the crater. Prior to this eruption, 1,000 villagers were evacuated from the western slopes; experts had warned that Tungurahua is poised for a major eruption within a few days to a few weeks. A...


Latest Pyroclastic flow Reference Libraries

28_3226ca8171b89cafa5810af4efc77795
2005-05-25 10:36:46

Volcanic ash is the term for very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. Ash is created when solid rock shatters and magma separates into minute particles during explosive volcanic activity. The usually violent nature of an eruption involving steam (phreatic eruption) results in the magma and perhaps solid rock surrounding the vent, being torn into particles of silt to sand size. The plume that is often seen above an erupting volcano...

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Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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