[Vision2020] Alaska Volcano
J Ford
privatejf32 at hotmail.com
Tue Jan 31 12:23:06 PST 2006
Anyone else been following this story (BTW, any of you science kinda folks
know if we would ever get fallout from this down here?):
Augustine Volcano continues belching ash, pyroclastic flows
By JEANNETTE J. LEE
ANCHORAGE, Alaska Ash from a steadily erupting volcano in south-central
Alaska wafted slowly toward the southern Kenai Peninsula and grounded
flights to and from Kodiak Island on Monday. Scientists reported that hot,
gaseous pyroclastic flows were seen coursing down the volcano's slopes.
Augustine Volcano's eruption at 6:48 a.m. marked the fourth straight day of
eruptions and generated an ash plume reaching almost five miles into the
skies above Cook Inlet.
The ash was moving east and southeast at 10 to 15 mph and a sparse dusting
was expected to fall on the Kenai Peninsula, the National Weather Service
said. There were no reports of ash in skies near Anchorage, about 180 miles
northeast of the volcano.
Eric Oswalt, plant foreman at Petro Marine Services on Kodiak said the ash
was "really minimal, just barely enough to see on your windshield." But ash
lingering overhead has prevented supply flights from reaching the island for
two days.
Many Kodiak residents have stocked up on milk and air cleaners and thrown
tarps over their cars.
"The biggest thing is there's no flights. That's what everybody's
complaining about," Oswalt said.
Alaska Airlines grounded freight flights from Anchorage to Kodiak on Sunday
and Monday. Ash particles can damage engines.
After a 10-day lull, Augustine erupted twice Friday, three times Saturday
and once Sunday and Monday, with blasts of ash reaching heights of almost
six miles, said scientists at the Alaska Volcano Observatory.
Scientists who flew over the volcano on Sunday reported fast-moving
pyroclastic flows made mostly of gas, ash and rock streaming down the
sides of the island mountain, sending up tendrils of ash and particulate
matter.
The collapse of a lava dome near the summit likely triggered the
boulder-flecked flows, which could be moving at speeds between 50 and 100
mph, according to Chris Waythomas, a geologist with the U.S. Geological
Survey, which helps run the Alaska Volcano Observatory.
Scientists also saw ash escaping steadily from the mountain between
eruptions.
The latest blasts were similar in size to a series of explosions in
mid-January that sent light ashfall into Kenai Peninsula communities,
scientists said. No communities have reported anything more than a minor
dusting of ash.
Before this month's ash explosions, Augustine had last erupted in 1986.
J :]
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