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Originally posted by Ikema
"We never thought Tungurahua would awake like this," Egas said of the volcano, whose name means "throat of fire" in the local Quichua language. (Watch the volcano erupt -- 1:32)
Too Hot to Handle: A Potential Supervolcano in Our Backyard
Aug. 29, 2006— - What could cover the globe in ash, plunge Earth into an ice age and end life as we know it?
Scientists say such an event wiped out almost the world's entire population 74,000 years ago, when a supervolcano erupted in Toba, near the Indonesian island of Sumatra. Only a few thousand people survived.
Indonesia has raised the alert level at a smoking volcano on Java island, and is urging villagers and tourists to stay off the mountain's slopes, the government said Wednesday
Indonesia, the world's largest archipelago, is prone to seismic upheaval due to its location on the so-called Pacific "Ring of Fire," an arc of volcanos and fault lines encircling the Pacific Basin.
Mount Bromo typically erupts once a year, but it does not send debris or lava far down its slopes and nearby towns and villages were in no danger, government volcanologist Suryono told el-Shinta radio station
New underground trigger for volcano eruption found
Scientists have found a new underground trigger for volcanic eruptions which, combined with other monitoring methods, could help predict when one will happen, a British science conference heard on Wednesday.
By studying volcanic magma, or molten rock, from erupted volcanoes they have determined that it heats itself up as it rises from deep below the surface -- which may provide an important trigger for an eruption.
"We developed a novel technique for understanding what went on prior to two eruptions of two active volcanoes," Professor Jon Blundy of Britain's University of Bristol said at the BA Festival of Science.
"As the magma ascends beneath the volcano prior to an eruption, it crystallises in response to the drop in pressure and gets hotter at the same time," he said via a telephone link from Italy.
On Sunday evening, September 17, AVO received numerous reports of a large unusual cloud rising to heights of 20,000 ft (6,000 m) above sea level from the Cape Douglas area, about 200 miles (320 km) southwest of Anchorage and about 80 miles (140 km) northwest of Kodiak. Since our Monday, September 18 Information Release, additional data and observations of the September 17 event have been compiled from several new sources. These data confirm that the source of the large cloud observed Sunday evening was volcanic. Thus, AVO is increasing the Level of Concern Color Code for Fourpeaked volcano from “Not Assigned” to YELLOW
Twin plumes of steam rising from the Cape Douglas area have Alaska Volcano Observatory scientists puzzled — and hoping for clear weather to figure out what’s going on.
“It’s not in a place where we expect to see steam,” said Rick Wessels, a U.S. Geological Survey geophysicist with the Alaska Volcano Observatory.
Eruption of Alaska Volcano Possible
Fourpeaked Volcano is not known to have erupted in the last 10,000 years. However, geological investigations have been limited and ice covers much of the area, the observatory said.
Seismic data and satellite observations indicated that a moderate ash eruption of the volcano continues. Ash explosions up to 6 km (or 19,700 ft.) ASL are possible. The activity of the volcano could affect low-flying aircraft in the vicinity of the volcano.
Low-level earthquake activity continues at Fourpeaked volcano. Web camera views this past week show a typical steam plume rising several hundred meters above the summit. Nothing unusual was observed in clear satellite views.
Over the past week, seismic levels continued to be above background. No volcanic activity was observed in satellite data this week.
Northern Atka Island is home to at least two potentially active volcanic vents. While Korovin Volcano is the source of recent steam emission, and known to be active historically, the current seismicity is located under neighboring Mount Kliuchef.
Current Volcano Alert Level WATCH ; Aviation Color Code ORANGE
Growth of the new lava dome inside the crater of Mount St. Helens continues, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash. During such eruptions, changes in the level of activity can occur over days to months. The eruption could intensify suddenly or with little warning and produce explosions that cause hazardous conditions within several miles of the crater and farther downwind. Small lahars could suddenly descend the Toutle River if triggered by heavy rain or by interaction of hot rocks with snow and ice.
Mud volcano threatens main rail track
Friday, December 22, 2006
A massive mud volcano that has forced thousands of Indonesians to flee their homes is now threatening to submerge a key railway line.
A gas well near Surabaya in East Java has spewed steaming mud since May, swallowing villages, factories and agricultural land. About 13,000 people have been forced from their homes.
The advancing sea of mud threatens to submerge the main line connecting Surabaya, Indonesia's second largest city, with the rest of East Java.
Shiveluch Volcano Eruption Begins In Kamchatka 5.12.2006
According to data obtained from satellites, the volcano has spewed a cloud of ash to a height of about six kilometres. The plume moved to the north at a distance of 100 kilometres. An avalanche came down on the volcano slope along the Baidarnaya River bed. There has been no damage and threat to nearby settlements. The nearest populated locality - Klyuchi is located 50 kilometres from the volcano.
Shiveluch is one of the most active Kamchatka volcanoes. It is 3,283 metres high. Its eruptions are of explosive nature and are difficult to forecast. The volcano's preceding eruption was registered in September 2005.
At first it looked like an ugly oil slick.
But as they crew of the yacht Maiken sailed closer to brown patch on the ocean near Tonga they realised they were observing something far rarer and far more beautiful.
What looked like a brown stain on the South Pacific turned out to be a spectacular drift of floating pumice stones stretching more than 16 km - and an indication an island was being born nearby.