Alaskan Fourpeaked 10,000 Year Old Dormant Volcano Eruption

Plume confirmed from ancient volcano Published: September 21, 2006 Last Modified: September 21, 2006 at 06:01 PM Alaska Volcano Observatory staff flew over the Cape Douglas area Wednesday and confirmed that the source of dark cloud-like plumes witnessed by many Homer residents Sunday night came from near the peak of Fourpeaked Mountain, a 6,903-foot volcano across Cook Inlet. Staff have also detected a strong sulfur smell just downwind, east, of the volcano. Two white vapor plumes rose through the clouds, rising as high as 2,000 feet above the mountainís peak. Stephanie Prejean, a seismologist with U.S. Geological Survey/Alaska Volcano Observatory, said the Alaska Earthquake Information center reported some small earthquakes Sunday afternoon in the area, between .8 and 1.8 magnitude. Observatory staff are planting seismometers on the previously unmonitored volcano on the north end of the Alaska Peninsula, and trying whenever weather allows them to see whatís happening from airplanes and helicopters. The mountain has been inactive for thousands of years. "Weíre trying to get the area monitored so we can get an idea if it's over or if it's just beginning," Prejean said. Volcano experts arenít calling what happened an eruption yet. "Weíre kind of calling it some kind of volcanic event or emission," said Prejean. "Itís very exciting. It's an interesting problem for us."

Concern level raised for Fourpeaked Volcano SOLDOTNA, Alaska (AP, 9/21/2006) - The Alaska Volcano Observatory has increased it level of concern for Fourpeaked Volcano to code Yellow. It previously had NO warning level. This action came as a result of weekend reports of an unusually large cloud rising 20,000 feet from the Cape Douglas area. Cape Douglas is 80 miles northwest of Kodiak and within the Katmai National Park and Preserve. The AVO now confirms that the source of the large cloud was volcanic. But the exact location of the cloud is not known, yet. Observatory scientists say satellite and radar data suggested a source low on the flank of Fourpeaked Volcano. They anticipate conducting an aerial fly-over for confirmation when weather allows. The observatory says the last volcanic activity at Fourpeaked was probably 10,000 years ago.

Photo of plume coming from Cape Douglas area, as seen from Homer. Picture Date: September 17, 2006 21:30:00 Image Creator: Day, Ken Image courtesy of the photographer.

The Popocateptl volcano emits a column of ash and steam, as seen from the town of San Nicolas Panotla, in the state of Tlaxcala September 15, 2006. REUTERS/J Guadalupe Perez (MEXICO)

A soldier mans his post to prevent villagers and onlookers from venturing closer to the lava flow of Mayon volcano (unseen) which already reached beyond the 6-kilometer Permanent Danger Zone from its crater Thursday Aug. 10, 2006 at Mabinit village in Legazpi city, Albay province about 340 kilometers (212 miles) southeast of Manila, Philippines. The Philippine Institute of Volcanology and Seismology, PHIVOLCS, has recorded a considerable drop in the number of earthquakes, from 21 Wednesday to three by midday Thursday as well as a relatively decrease in sulfur dioxide emissions, both strong indications of an explosive eruption. (AP Photo/Bullit Marquez)

An armed soldier keeps watch in Bonga village which has been declared as a dangerous zone as Mayon volcano gears for a potential eruption. Philippine scientists renewed warnings of a major eruption at Mayon volcano, as steaming lava poured down its slopes and thousands huddled in evacuation camps.(AFP/Romeo Gacad) 




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