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Latest Types of volcanic eruptions Stories

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2009-07-08 09:40:30

U.S. scientists said they have determined the eruption of Indonesia's Toba volcano about 74,000 years ago triggered a decade-long severe winter. Previous studies suggested the massive eruption produced a 1,000-year episode of ice sheet advance, as well as a volcanic winter, which most likely would have drastically reduced the human population at the time. To investigate additional mechanisms that might have enhanced and extended the effects of the Toba eruption, Rutgers University Professor...

94dc39470c452094d981275caa3b1612
2009-07-01 08:45:00

Alaska's Mount Redoubt has gradually slowed down in activity since the last eruption three months ago. The Alaska Volcano Observatory said on Tuesday that seismic activity has calmed down and the eruptions may have stopped. The observatory has dropped the alert levels for the areas around the mountain. Several eruptions starting in March interrupted air traffic and covered Anchorage, the Kenai Peninsula and Wasilla with ash. Due to prior events, geologists felt that the eruptions would be...

5fcc0b703044653ef3712e914754be871
2009-05-29 06:45:00

According to a new study, volcanic eruptions in what is now present-day China may have been the cause of mass extinction 260 million years ago. The Guadalupian Mass Extinction, which devastated marine life around the world, was preceded by eruptions in the Emeishan province of Southwest China, said Paul Wignall, paleontologist from the University of Leeds. According to the report, which appears in Friday's edition of the journal Science, the eruption in China unleashed nearly a half million...

97a72705079fbaa20b3f74e7ed51bba7
2009-05-06 07:25:00

Scientists who have just returned from an expedition to an erupting undersea volcano near the Island of Guam report that the volcano appears to be continuously active, has grown considerably in size during the past three years, and its activity supports a unique biological community thriving despite the eruptions. An international science team on the expedition, funded by the National Science Foundation (NSF), captured dramatic new information about the eruptive activity of NW Rota-1. "This...

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2009-05-05 16:50:00

Scientists who have just returned from an expedition to an erupting undersea volcano near the Island of Guam report that the volcano appears to be continuously active, has grown considerably in size during the past three years, and its activity supports a unique biological community thriving despite the eruptions.An international science team on the expedition, funded by the National Science Foundation (NSF), captured dramatic new information about the eruptive activity of NW Rota-1."This...

922717d7d5e13ea0882a990aec46132a1
2009-04-20 07:40:00

'Sigmoids' are S-shaped structures found in the outer atmosphere of the Sun (the corona), seen with X-ray telescopes and thought to be a crucial part of explosive events like solar flares. Now a group of astronomers have developed the first model to reproduce and explain the nature of the different stages of a sigmoid's life. Professor Alan Hood and Dr. Vasilis Archontis, both from the Mathematical Institute at St. Andrews University, Scotland, will present the team's results at the European...

718ed85b8f2b2de8bef92d6216e682df1
2009-04-11 12:25:00

The U.S. government will spend $15.2 million to modernize equipment for monitoring U.S. volcanoes and improving warning systems, according to Interior Secretary Ken Salazar. Salazar said the United States and its territories have 169 active volcanoes, and 54 of them need improved monitoring so scientists can warn the public about explosive disruptions, alert aircraft to ash clouds and inform communities of falling ash, lava and mud flows. One example Salazar cited was the recent activity of...

2ea5f35a2d4b7248e9f54f1fe8c2d385
2009-04-09 08:52:29

New Scripps study of low-frequency sound from Mount St. Helens and Tungurahua volcanoes provides explanation for how the large-amplitude signals from eruptions are produced New research on infrasound from volcanic eruptions shows an unexpected connection with jet engines. Researchers at Scripps Institution of Oceanography at UC San Diego speeded up the recorded sounds from two volcanoes and uncovered a noise very similar to typical jet engines. These new research findings provide scientists...

706b362359eb8b9c39f727e90269b037
2009-04-08 09:05:01

Collect first data on lightning during volcano's initial eruption Researchers hit the jackpot in late March, when, for the first time, they began recording data on lightning in a volcanic eruption--right from the start of the eruption. Using a multi-station, ground-based Lightning Mapping Array, the scientists advanced our understanding of electrical activity during a volcanic eruption. Portable Lightning Mapping Arrays are now set up in several areas of the country, and are becoming...

86b310921ac568b1537f85309fab0116
2009-04-06 13:55:00

Residents of Alaska's largest city near Mount Redoubt are being forced to take strong measures due to the irritation caused by volcanic ash spewing from the volcano's top, the Associated Press reported. Those near the volcano occasionally have to wear air-filtration masks and stretch panty hose over the air intake of cars and trucks. Anchorage resident Brad Sandison, a retired truck driver and avid cyclist who carries a face mask and goggles whenever he rides near the volcano, said he is...


Latest Types of volcanic eruptions Reference Libraries

Hualālai
2014-04-10 12:06:55

Hualālai is a dormant shield volcano that is located on the island of Hawaii and is one of five volcanoes that form the island. It reaches an elevation of 8,271 feet and is thought to have emerged from the sea about 300,000 years ago, making it the third youngest volcano on the island. Its shape is rough compared to younger volcanoes and it holds three rift zones that are covered with over one hundred cinder cones and spatter cones. Although it does not hold a caldera at its summit, it does...

Zubair Group
2014-04-10 10:08:46

Zubair Group, also known as Zubayr Group or Al Zubair Group, is a chain of volcanic islands belonging to Yemen that are located on top of a shield volcano in the Red Sea. Zubair Group The largest island, known as Zubair, is among the youngest islands, which also include Saba, Saddle, and Haycock. The shield volcano underneath the islands began a period of eruptions and eventually quieted down, followed by a period of explosive and effusive eruptions that formed the islands that are present...

Kohala
2014-04-10 10:03:58

Kohala is an extinct shield volcano that is located on the island of Hawaii and reaches an elevation of 5,480 feet. It is one of five volcanoes that comprise the island of Hawaii and is thought to be about one million years old, although it only emerged from the sea about 500,000 years ago. Because its last eruption is thought to have occurred about 120,000 years ago, based on studies conducted on hardened lava flows, this volcano is not thought to pose a threat to inhabitants on the island....

Askja
2014-04-09 16:13:20

Askja is an active stratovolcano that is located in the isolated central highlands in Iceland. It reaches an elevation of 4,974 feet and its name literally means caldera, or box, in the Icelandic language. The area can only be reached during a period of a few months and because it located in the rain shadow of the Vatnajökull glacier to the northeast, it only receives 17.7 inches of rain per year. One of Askja’s smaller craters holds a lake known as Öskjuvatn, which is often frozen over...

Santa María Volcano
2014-04-09 10:58:40

Santa María Volcano is an active stratovolcano that is located in Guatemala and is part of the Sierra Madre, a string of volcanoes that stretches across the western side of Guatemala. The volcanoes in this string were formed by subduction activity, when the Cocos Plate moved under the Caribbean Plate. An eruption in 1902 produced a crater that now holds a lava dome known as Santiaguito, which was created during another eruption in 1922. These domes hold active vents and in 1929, part of the...

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drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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