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Researchers Provide New View Of Mount Rainiers Volcanic

Researchers Provide New View Of Mount Rainier's Volcanic Plumbing

April Flowers for redOrbit.com - Your Universe Online A new, detailed image of the volcanic plumbing beneath Mt. Rainier has been created by a group of researchers from the University of Utah, Woods Hole Oceanographic Institution, the College...

Latest Types of volcanic eruptions Stories

volcanic eruptions cambrian extinction
2014-05-31 06:19:01

Alan McStravick for redOrbit.com - Your Universe Online This week has certainly been heavy on extinction news. Seth Borenstein's enlightening AP article is one, detailing that the Earth may, in fact, be on the brink of the Sixth Great Extinction event. Citing the loss of species at a rate of 1,000 times faster than at any time prior to the rise of the human race, Borenstein's story states we are toying with disaster and whether or not humans make it out of this alive depends fully on...

Explosive History Of A 'Celebrity Hotspot' Uncovered
2014-05-21 03:01:15

University of Leicester A tiny Mediterranean island visited by the likes of Madonna, Sting, Julia Roberts and Sharon Stone is now the focus of a ground-breaking study by University of Leicester geologists. Pantelleria, a little-known island between Sicily and Tunisia, is a volcano with a remarkable past: 45 thousand years ago, the entire island was covered in a searing-hot layer of green glass. Volcanologists Drs Mike Branney, Rebecca Williams and colleagues at the University of...

New Volcanic Revelations May Help Predict When Eruptions Will Occur
2014-05-05 09:10:30

[ Watch the Video: New Insight May Help Predict Volcanic Eruption Behavior ] Gerard LeBlond for redorbit.com - Your Universe Online Volcanologists from the University of Liverpool have discovered how lava dome volcanoes erupt. This could help develop methods on predicting how volcanoes will act. The process of frictional melting determines how the volcano will erupt. The speed of the lava rise and how much friction it creates is determined by this process. Within the lava dome the...

Mount St. Helens Magma Levels Rising, But No Eruption Imminent
2014-05-03 05:03:06

redOrbit Staff & Wire Reports - Your Universe Online While magma levels are rising at Mount St. Helens in Washington, there is now evidence that the active stratovolcano will not be erupting any time soon, researchers said during the annual meeting of the Seismological Society of America (SSA) in Anchorage, Alaska on Friday. Lead researcher Seth Moran, a seismologist with the Cascades Volcano Observatory (CVO), explained that a small amount of magma began pooling approximately 2.5...

Understanding Mudslides And Other Debris Flows Using mathematics
2014-05-01 03:09:36

Ivy F. Kupec, National Science Foundation Mudslides. Landslides. Volcanic debris flows. Avalanches. Falling rocks... They can come along so suddenly that people, homes, roads and even towns are buried or destroyed without much warning. Recently, we've had dramatic reminders of this, such as the mudslide in Oso, Wash., where 41 people died; an avalanche on Mt. Everest that killed 13 experienced Sherpas and another landslide event in Jackson, Wyo. And as much as ancient Pompeii serves as...

Origins On The Behavior Of Hawaiian Volcanoes
2014-05-01 03:05:10

University of Hawaii ‑ SOEST Kīlauea volcano, on the Big Island of Hawai'i, typically has effusive eruptions, wherein magma flows to create ropy pāhoehoe lava, for example. However, Kīlauea less frequently erupts more violently, showering scoria and blocks over much of the surface of the island. To explain the variability in Kīlauea's eruption styles, a team including Bruce Houghton, the Gordon Macdonald Professor of Volcanology in Geology and Geophysics at the University of Hawai'i...

mercury
2014-04-05 05:12:23

redOrbit Staff & Wire Reports - Your Universe Online Using new data obtained by the MESSENGER spacecraft, researchers from Brown University in Rhode Island have discovered that explosive volcanic activity has been occurring throughout most of Mercury’s history, meaning that the planet has had the volatile compounds necessary for those eruptions for longer than anticipated. The findings, which are detailed in a recent edition of the Journal of Geophysical Research: Planets, are...

Augustine Island Volcano
2014-03-18 04:27:52

Lee Rannals for redOrbit.com - Your Universe Online Scientists writing in Geophysical Research Letters say that earthquakes caused by clogged magma could be a sign of an imminent volcanic eruption. Researchers studying Augustine Volcano in Alaska looked at how earthquakes caused by mounting volcanic pressure could be an early indicator of an eruption about to take place. Scientists detected a swarm of 54 earthquakes across 13 station seismic networks on Augustine Island 36 hours...

Magma Chamber Of Galapagos' Sierra Negra Volcano Imaged In 3D
2014-03-06 10:01:48

April Flowers for redOrbit.com - Your Universe Online Some of the most active volcanoes in the world can be found in the Galapagos Islands. These volcanoes are responsible for more than 50 eruptions in the last 200 years. Even with such activity, scientists knew far more about the history of finches, tortoises and iguanas on the islands than the volcanoes upon which these unusual fauna had evolved. A new study from the University of Rochester, published in the Journal of Geophysical...

Mount Hood Study Suggests Dormant Volcanoes Quickly Become Active
2014-02-17 07:22:37

[ Watch the Video: Dormant Volcanoes Can Quickly Become Active ] Lawrence LeBlond for redOrbit.com - Your Universe Online New research by UC Davis and Oregon State University may soon lead to new forecasts into how soon volcanoes are ready to erupt. Geologists from both schools, publishing a paper online in the journal Nature, have found that in order for an eruption to occur, molten rock under the volcano must be sufficiently mobile. The evidence comes from a study of Oregon’s...


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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Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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