*NEWS*3 ALASKA VOLCANOES..SIGNS OF UNREST

[Anonymous]

Three Alaska Volcanoes Show Signs of Unrest
ANCHORAGE, Alaska (Oct.
05) – Anchorage residents could see a cloud of steam over the weekend
from a volcano 75 miles away — one of three Alaska volcanoes showing
signs of unrest.
The three volcanoes, including two located on remote Aleutian islands
distant from any population centers, are setting off frequent tremors
and minor bursts of ash or steam, seismologists said on Tuesday.
Cleveland Volcano, 900 miles southwest of Anchorage, had a small
eruption on Friday, said the Alaska Volcano Observatory, which monitors
Alaska’s more than 40 active volcanoes.
Its ash plume rose to a height of nearly 15,000 feet above sea level, observatory scientists said.
A cloud of steam from the 11,070-foot Mount Spurr was visible from Anchorage over the weekend.
Cleveland Volcano has had periodic but minor ash emissions and some
debris flow caused by melted snow, said Dave Schneider, a U.S.
Geological Survey volcanologist and acting scientist-in-charge at the
Alaska Volcano Observatory.
Ash emissions from Cleveland Volcano “are a lot easier to see now than
they were in the summer because you have fresh snow,” Schneider said.
Cleveland Volcano, which comprises the western half of uninhabited
Chuginadak Island, last erupted in 2001. The closest community, 45
miles to the east, is Nikolski, an Aleut village of 36 people.
The other volcano showing unrest is 5,925-foot Tanaga Volcano.
A series of eruptions in 1992 showered Anchorage and the surrounding
region with ash, forcing a brief closure of Anchorage International
Airport.

[Author]

October 12, 2005 at 10:33 AM