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a3989a9d6dda2ef295bb7b6ceda4d3351
2011-03-18 13:49:53

A volcanologist said on Friday that Indonesia issued a red alert after Mount Karangetang on the island of Sulawesi erupted, sending lava and searing gas clouds down its slopes. "We raised the volcano's status to the highest red alert level today at 5:45 pm (1045GMT) and ordered an evacuation in three villages on the slopes," government volcanologist Surono told AFP. He said that the 5,850-foot mountain on the island off North Sulawesi oozed lava, heat clouds and debris reaching as far as...

5746ee510f7a3e85f91517cd0b3e86491
2011-03-09 07:45:07

A fissure on Kilauea Volcano on the Big Island of Hawaii sent lava spewing more than 60 feet into the air recently, and scientists continued to monitor the activity closely. Park rangers said that no homes were threatened in the latest blast and also cautioned campers and visitors to keep their distance while it continues to act up. Kilauea has been constantly erupting for the past 28 years. But according to geologist Janet Babb of the US Geological Survey (USGS), this weekend's activity...

406c4efb8b6c4d11e09c32cea411a0971
2011-03-07 08:40:00

Eruptions at a Hawaiian volcano have forced officials to close off part of a national park to visitors while geologists monitor eruptions and other seismic activity in the area. According to the Daily Mail, US Geological Survey (USGS) scientists working at the Hawaiian Volcano Observatory (HVO) have reported "a fountain of fire" at the Kilauea Volcano. The volcano in question is located near Napau Crater in Hawaii County, and began erupting Saturday afternoon. "That event was nearly...

052102fed6b37153c8e56a696b5817a11
2011-02-17 05:40:00

Geologists in Iceland discovered a big surprise while drilling an exploratory geothermal well in 2009 in the Krafla volcano:  the presence of underground lava, known as magma, flowing into the well at a depth of 6,900 feet (2.1 kilometers). "To the best of our knowledge, only one previous instance has been documented of magma flowing into a geothermal well while drilling," said Wilfred Elders, a geologist at the University of California, Riverside, who led the research team. Elders and...

96ea512b709fcdb3359c898336b5561f1
2010-12-13 13:50:00

By Pam Frost Gorder, Ohio State University Ohio State University researchers have found a new way to gauge the depth of the magma chamber that forms the Hawaiian Island volcanic chain, and determined that the magma lies much closer to the surface than previously thought. The finding could help scientists predict when Hawaiian volcanoes are going to erupt. It also suggests that Hawaii holds great potential for thermal energy. Julie Ditkof, an honors undergraduate student in earth sciences at...

e4db3fa1cf473db0d7f342f2c8b3986f1
2010-11-19 09:54:15

The Soufriere Hills Volcano on Montserrat erupted in 1995, and an international team of researchers has studied this volcano from land and sea since then to understand the workings of andesite volcanos more completely. "To the extent that the Soufriere Hills Volcano is typical of andesitic dome building volcanoes, results from this research can be expected to apply more generally," said Barry Voight, professor emeritus of geosciences, Penn State. Voight and R. S. J. Sparks, the Channing Wills...

53c94ebdc2e438ad8b5d05906605a43c1
2010-09-21 11:43:19

The heat in the atmosphere of Venus, induced from a strong greenhouse warming, might actually have a cooling effect on the planet's interior. This counter-intuitive theory is based on calculations from a new model presented at the European Planetary Science Congress (EPSC) in Rome on Tuesday September 21st. "For some decades we've known that the large amount of greenhouse gases in the atmosphere of Venus cause the extreme heat we observe presently", explains Lena Noack from the German...

3998f31f97d3876078cf5b444e8a0e1b1
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...

3607c85c0106318d4af3aafb26fb8d451
2010-04-23 12:50:00

Study of volcano-ice interaction offers window into geologic past and clues about Earth's long-term climate cycles Glaciovolcanoes, they're called, these rumbling mountains where the orange-red fire of magma meets the frozen blue of glaciers. Iceland's Eyjafjallajökull volcano, which erupted recently, is but one of these volcanoes. Others, such as Katla, Hekla and Askja in Iceland; Edziza in British Columbia, Canada; and Mount Rainier and Mount Redoubt in the U.S., are also...

2010-04-08 13:12:00

WASHINGTON, April 8 /PRNewswire-USNewswire/ -- For the first time, scientists have detected clear signs of recent lava flows on the surface of Venus. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The observations reveal that volcanoes on Venus appeared to erupt between a few hundred years to 2.5 million years ago. This suggests the planet may still be geologically active, making Venus one of the few worlds in our solar system that has been volcanically active within the...


Latest Lava 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...

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....

Eldfell
2014-04-08 12:54:37

Eldfell is an active stratovolcano that is located in Iceland on the island of Heimaey, in the Vestmannaeyjar archipelago. It reaches an elevation of 656 feet and was created during a volcanic eruption on the east side of the island in 1973. Its name means Mountain of Fire in the Icelandic language. Iceland is an area with a high frequency of volcanic activity because it is located on top of the Iceland hotspot and beside the Mid-Atlantic Ridge. So many eruptions occur here that it is thought...

Volcanology
2014-01-12 00:00:00

Volcanology is the study of volcanoes, magma, lava, and related geological, geochemical, and geophysical phenomena. The term volcanology comes from the Latin word Vulcan. Vulcan is the ancient Roman god of fire. A volcanologist is a person who studies the creation of volcanoes, and their current and historic eruptions. Volcanologists frequently visit volcanoes, particularly active ones, to observe volcanic eruptions, collect eruptive products including samples of tephra, lava, and rock....

28_7e4b073c7040fee3b2cac319d88d24b9
2005-05-25 18:45:14

Rhyolite is an igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture. Mineral assembly is usually quartz, alkali feldspar and plagioclase (in a ratio > 1:2). Biotite and pyroxene are common accessory minerals. Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock. Due to their high content of silica, rhyolite form highly viscous lavas. They can also occur as breccias or in volcanic necks and dikes. Like obsidian,...

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