Quantcast
Last updated on April 21, 2014 at 5:21 EDT

Latest Lava Stories

d8ad6d279413beb2ff1e3ba14ba3e0851
2010-04-08 13:40:00

For the first time, scientists have detected clear signs of recent lava flows on the surface of Venus. 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 last 3 million years. The evidence comes from the European Space Agency's Venus Express mission, which has been in...

7fe22eaa37b1b1e3609ce015f80a1e77
2010-03-05 06:35:00

Flowing lava can carve or build paths very much like the riverbeds and canyons etched by water, and this probably explains at least one of the meandering channels on the surface of Mars. These results were presented on March 4, 2010 at the 41st Lunar and Planetary Science Conference by Jacob Bleacher at NASA's Goddard Space Flight Center, Greenbelt, Md. Whether channels on Mars were formed by water or by lava has been debated for years, and the outcome is thought to influence the likelihood...

17e8b6d4f9f52ac825162038d8c05bde1
2010-01-22 11:30:00

On January 2, Mount Nyamulagira in the Democratic Republic of Congo erupted, spewing lava from its southern flank and raising concerns that the 100 000 people in the town of Sake could be under threat. Fears were also triggered in Goma as rumors circulated that an eruption was imminent at the nearby Nyiragongo volcano, which devastated the city in 2002. Following the eruption, scientists and local authorities have been using a long series of space images from ESA's Envisat, together with...

b5388291b006eb8e439767f4f5b748a61
2010-01-05 07:35:00

The Virunga National Park, home to 200 of the world's 720 mountain gorillas, is in the path of molten hot lava spewing from a volcano that has erupted in the eastern Democratic Republic of Congo. The park is also home to elephants, hippos and buffalo, along with a range of reptiles and birds. It's said lava from Mount Nyamuragira began picking up speed when it hit the steep ground near the national park. The volcano is 22 kilometers from the provincial capital Goma, which it last threatened...

2f6cf2d68f45510f193afa119051c8fc1
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,...

60b10dca923a6b0e1feead0364bec9771
2009-12-18 06:35:00

Scientists have unveiled video footage of the deepest underwater volcanic eruption, at a site where sweltering 2,500-degree lava explodes into cold water nearly a mile below the ocean surface. Bob Embley, a marine geologist at NOAA's Pacific Marine Environmental Laboratory in Newport, Oregon, said, "It was very exciting. We've never seen anything like that on the ocean floor." The West Mata volcano, six miles long and four miles wide, rises one mile from the sea floor and sits 4,000 feet...

9a157fe61bcd6d88a43175ca734263571
2009-12-17 08:10:00

Like an angry dog, a volcano growls before it bites, shaking the ground and getting "noisy" before erupting. This activity gives scientists an opportunity to study the tumult beneath a volcano and may help them improve the accuracy of eruption forecasts, according to Emily Brodsky, an associate professor of Earth and planetary sciences at the University of California, Santa Cruz. Brodsky presented recent findings on pre-eruption earthquakes on Wednesday, December 16, at the fall meeting of...

2009-10-05 10:55:47

U.S. scientists say they have used simulations to determine the atmosphere of an exoplanet discovered in February is hot enough to rain pebbles. Researchers at Washington University in St. Louis say their models show the exoplanet is close enough to its star that its day-face maintains a temperature of about 4,220 degrees Fahrenheit -- hot enough to vaporize rocks. The theoretical models suggest the planet has an atmosphere of the components of rock in gaseous form and lava or boiling oceans...

8398d07b7c94e86bbdb29d57d89654b01
2009-06-07 15:59:26

Hawaii's Kilauea volcano seems to be active again, with molten lava moving around 300 feet under the crater's floor. The growth of the Halemaumau crater corroborates scientists' certainty that the lava is near the summit, said Janet Babb, a geologist and spokeswoman at the U.S. Geological Survey's Hawaiian Volcano Observatory. Park rangers have started allowing the overlook at the Jaggar Museum to stay open later in the evening to have capacity for the larger numbers of visitors to see the...

2009-05-11 16:58:59

U.S. and French scientists say they have discovered the origin of carbon-based lavas erupting from a Tanzanian volcano. The researchers, led by the University of New Mexico, analyzed gas samples collected from inside the active crater of Tanzania's Oldoinyo Lengai volcano -- the only volcano that is actively producing carbon-based lavas. The geochemical analyses revealed a very small degree of partial melting of minerals in the Earth's upper mantle is the source of the rare carbon-derived...


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,...

More Articles (5 articles) »