Alaska volcano Mount Redoubt erupts 5 times

March 23, 2009 By MARY PEMBERTON , Associated Press Writer
Alaska volcano Mount Redoubt erupts 5 times (AP)

Enlarge

In a January 27, 2009 file photo provided by the Alaska Volcano Observatory/U.S.G.S. steam and gas rise from a large fumerole on the north flank of Mount Redoubt, a 10,197-foot volcano in the Chigmit Mountains, in Alaska. Geologists at the Alaska Volcano Observatory say the volcano erupted three times late Sunday March 22, 2009 and early Monday, with the largest eruption sending a plume of smoke some 50,000 feet above sea level. (AP Photo/AVO,USGS)

(AP) -- Alaska's Mount Redoubt volcano erupted five times overnight, sending an ash plume more than 9 miles into the air in the volcano's first emissions in nearly 20 years.

Residents in the state's largest city were spared from falling , though fine gray dust was falling Monday morning on small communities north of Anchorage.

"It's coming down," Rita Jackson, 56, said early Monday morning at a 24-hour grocery store in Willow, about 50 miles north of Anchorage. She slid her fingers across the hood of her car, through a dusting of ash.

Ash from Alaska's volcanos is like a rock fragment with jagged edges and has been used as an industrial abrasive. It can injure skin, eyes and breathing passages. The young, the elderly and people with respiratory problems are especially susceptible to ash-related health problems. Ash can also cause damage engines in planes, cars and other vehicles.

Alaska Airlines on Monday canceled 19 flights in and out of the Anchorage international airport because of the ash.

Elmendorf Air Force Base in Anchorage told only essential personnel to report to work. The Air Force says 60 planes, including fighter jets, cargo aircraft and a 747 commercial plane, were being sheltered.

The first eruption, in a sparsely area across Cook Inlet from the Kenai Peninsula, occurred at 10:38 p.m. Sunday and the fifth happened at 4:30 a.m. Monday, according to the Alaska Observatory.

The wind was taking the ash cloud away from Anchorage, toward Willow and Talkneetna, near Mount McKinley, North America's largest mountain in Denali National Park.

Dave Stricklan, a hydrometeorogical technician with the National Weather Service, expected very fine ash.

"Just kind of a light dusting," he said. He said the significant amount of ash probably dropped immediately, right down the side of the volcano.

"The heavier stuff drops out very quickly, and then the other stuff filters out. There's going to be a very fine amount of it that's going to be suspended in the atmosphere for quite some time," he said. "The finer ash is going to travel farther, and any ash can affect aviation safety."

Jackson said she was taking a sip of coffee when she tasted something funny on her lips - ash. She was experiencing other affects, too.

"My eyes are itching really bad," she said as she hurried to get out of the store and to her car.

Jackson, who unexpectedly got the day off, hurried home from the grocery store to secure a motorcycle, snowmachine and vehicles under protective blue tarps.

The 10,200-foot Redoubt Volcano, roughly 100 miles southwest of Anchorage, last erupted during a four-month period from 1989-90.

In its last eruption, Redoubt sent ash 150 miles away into the path of a KLM jet and its four engines flamed out. The jet dropped more than 2 miles before the crew was able to restart all engines and land safely. The plane required $80 million in repairs.

Meanwhile, the volcano became restless earlier this year. The observatory had warned in late January that an eruption could occur at any time.

Increased earthquake activity over the past 48 hours prompted scientists to raise the alert level for on Sunday.

On Sunday morning, 40 to 50 earthquakes were being recorded every hour.

A steam plume rising about 1,000 feet above the mountain peak was observed Saturday.

---

On the Net:

: http://www.avo.alaska.edu

Associated Press Writer Mark Thiessen in Anchorage contributed to this report.
©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


Rank 5 /5 (1 vote)
Related Stories
Relevant PhysicsForums posts
  • Do some geologists actually act a lot like Randy Marsh?
    createdFeb 11, 2012
  • Discrepancy between oxygen and carbon-dioxide levels
    createdFeb 09, 2012
  • where gems are found in the world
    createdFeb 09, 2012
  • Wind Waves in Reservoir ~ Wind run-up and Wind set-up
    createdFeb 08, 2012
  • Balance of oxygen in the atmosphere
    createdFeb 01, 2012
  • The case for a methanol-based economy
    createdJan 30, 2012
  • More from Physics Forums - Earth

More news stories

Climate change causes harmful algal blooms in North Atlantic: study

Warming oceans and increases in windiness could be causing of an abundance of harmful algal blooms in the North Atlantic Ocean and North Sea, according to new research.

Space & Earth / Environment

created 1 hour ago | popularity not rated yet | comments 0

Salvage workers begin pumping fuel from Italian shipwreck

Salvage workers Sunday began pumping fuel from the shipwrecked Italian cruise liner Costa Concordia, a day ahead of schedule, officials said.

Space & Earth / Environment

created 16 hours ago | popularity 5 / 5 (2) | comments 0

Political leaders play key role in how worried Americans are by climate change: study

More than extreme weather events and the work of scientists, it is national political leaders who influence how much Americans worry about the threat of climate change, new research finds.

Space & Earth / Environment

created Feb 06, 2012 | popularity 5 / 5 (8) | comments 76

NASA budget will axe Mars deal with Europe: scientists

US President Barack Obama's budget proposal to be submitted next week for 2013 will cut NASA's budget by 20 percent and eliminate a major partnership with Europe on Mars exploration, scientists said Thursday.

Space & Earth / Space Exploration

created Feb 10, 2012 | popularity 5 / 5 (4) | comments 59

Humans may have helped the decline of African rainforests 3000 years ago

(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...

Space & Earth / Environment

created Feb 10, 2012 | popularity 4.1 / 5 (14) | comments 21 | with audio podcast report


Rapunzel, Leonardo and the physics of the ponytail

(PhysOrg.com) -- New research provides the first mathematical understanding of the shape of a ponytail and could have implications for the textile industry, computer animation and personal care products.

Hacker claims porn site users compromised

A hacker claims to have compromised the personal information of more than 350,000 users after breaking into a disused website operated by pornography provider Brazzers.

Scientists discover molecular secrets of 2,000-year-old Chinese herbal remedy

For roughly two thousand years, Chinese herbalists have treated Malaria using a root extract, commonly known as Chang Shan, from a type of hydrangea that grows in Tibet and Nepal. More recent studies suggest that halofuginone, ...

Cognitive impairment in older adults often unrecognized in the primary care setting

A new study published in the Journal of the American Geriatrics Society reveals that brief cognitive screenings combined with offering further evaluation increased new diagnoses of cognitive impairment in older veterans two to ...

AT&T customers surprised by 'unlimited data' limit

(AP) -- Mike Trang likes to use his iPhone 4 as a GPS device, helping him get around in his job. Now and then, his younger cousins get ahold of it, and play some YouTube videos and games.

Integrated pest management recommendations for the southern pine beetle

The southern pine beetle, Dendroctonus frontalis Zimmermann, is a chronic insect pest within pine forests in the southeastern United States. Under favorable environmental and host conditions, it is an agg ...