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Latest Types of volcanic eruptions Stories

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2010-10-20 13:45:31

Nevada and Hawaii researchers complete study of Kilauea health clinic records Kilauea Volcano on Hawaii's big island has been erupting on its east rift since 1983. But, in March 2008, an additional eruption vent opened at the volcano's summit, resulting in about triple the amount of sulfur dioxide gas (SO2) emissions drifting to the local community of Ka'u, raising health concerns over the risks associated with exposure to "vog," as the islanders refer to this volcanic air pollution. A...

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2010-10-16 10:00:00

Scientists are crediting satellite imagery with helping to predict where volcanic eruptions could strike. It is well known that earthquakes can stress Earth's crust and trigger subsequent quakes, but there has been no proof of this for volcanoes until now. In September 2005, a volcanic event in Ethiopia's Afar Desert forced magma up through rocks in a crack, known as a dyke, resulting in a 60-km-long tear in Earth's crust. Over the next four years, 12 more dykes were created in the same...

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2010-10-07 08:28:03

New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia. The research, led by Liubov Vitaliena Golovanova and Vladimir Borisovich Doronichev of the ANO Laboratory of Prehistory in St. Petersburg, Russia, is reported in the October issue of Current Anthropology. "[W]e offer the hypothesis that the Neanderthal demise occurred abruptly (on a geological time-scale) "¦...

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2010-09-28 09:35:00

Researchers working with the British Geological Survey (BGS) are studying ash samples collected from the Eyjafjallajökul volcano that could shed new light on the dispersion of volcanic ash following an eruption, according to a Tuesday report by BBC News. Neil Bowdler, a science reporter with the British news agency, reported that the samples were collected following the massive March eruption of the Icelandic volcano, and that they could help scientists find out why ash that was fine...

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2010-09-27 07:30:00

A better way to pinpoint where volcanic eruptions are likely to occur has been produced by an international team of geophysicists. Scientists from the universities of Leeds, Purdue, Indiana and Addis Ababa, investigated volcanic activity occurring in the remote Afar desert of Northern Ethiopia between 2005 and 2009. By studying a rare sequence of 13 magmatic events "“ where hot molten rock was intruded into a crack between the African and Arabian plates "“ they found that the...

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2010-09-27 06:12:47

Geologists reported on Sunday that a swarm of small earthquakes that struck western Saudi Arabia last year was actually the rumbling of a volcano. Over 30,000 minor quakes took place between April and June 2009 within an ancient solidified lava field called Harrat Lunayyir, which damaged some buildings near Al Ays and prompted the authorities to evacuate the 40,000 residents from the region. Most of the quakes measured less than two on the scale of magnitude, but several were hefty,...

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2010-09-17 06:30:00

Experts say that another volcanic eruption on Iceland could happen again soon, but will likely cause much less chaos than the one that caused air traffic to shutdown earlier this year. The Eyjafjallajokull volcano, which began erupting on April 14, spewed enough ash into the atmosphere to cause the largest-scale European airspace shutdown since World War II. University of Iceland geologist Armann Hoskuldsson told an international conference in Keflavik that the event "was very unusual."...

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2010-09-03 10:45:57

An Indonesian volcano that had been dormant for more than four centuries before erupting earlier this week has once again become active, launching a massive burst of ash some 10,000 feet into the air and forcing nearby villagers, many of whom had just returned home, to once again evacuate. According to Associated Press (AP) Writer Binsar Bakkara, the force of the eruption was "the strongest so far" and could be felt up to five miles away from the source, Mount Sinabung in North Sumatra. The...

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2010-08-25 10:26:23

Two French scientists are travelling to one of the remotest places on Earth, the Kamchatka peninsula, to piece together the complex life story of two volcanoes. Kamchatka is one of the most volcanically active places on Earth. It is part of the Ring of Fire "“ intermittent chains of volcanoes that encircle the Pacific Ocean. Over at least the last 6 million years, Kamchatka has experienced more explosive eruptions than any place on Earth. Historically, the level of activity has made it...

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2010-08-03 09:20:21

A new study has found that a mixing of two different types of magma is the key to the historic eruptions of Mount Hood, Oregon's tallest mountain, and that eruptions often happen in a relatively short time "“ weeks or months "“ after this mixing occurs. This behavior is somewhat different than that of most other Cascade Range volcanoes, researchers said, including Mount Hood's nearby, more explosive neighbor, Mount St. Helens. The research is being reported this week in Nature...


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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