Cleveland Volcano erupts

  • By Dan Joling
  • Tuesday, July 21, 2015 10:31pm
  • News

ANCHORAGE, Alaska — An explosion Tuesday morning rocked Alaska’s Cleveland Volcano but scientists have detected no ash cloud that could threaten jets crossing the Pacific Ocean.

Scientists as the Alaska Volcano Observatory recorded an explosion at the volcano 940 miles southwest of Anchorage in the Aleutian Islands.

U.S. Geological Survey geologist Kristi Wallace said a similar explosion was recorded in November. Ash may have been produced but likely stayed under 20,000 feet, she said.

“We see this quite often and we think that they are associated with some sort of ash production,” she said.

Clouds obscured the sky at 30,000 feet. The observatory detected no ash above the clouds.

The Federal Aviation Administration and the airline industry become concerned for trans-Pacific flights when an ash cloud has the potential to exceed 20,000 feet.

Alaska’s Redoubt Volcano blew on Dec. 15, 1989, and sent ash 150 miles away into the path of a KLM jet carrying 231 passengers. Its four engines flamed out. The jet dropped more than 2 miles, from 27,900 feet to 13,300 feet, before the crew restarted all engines and landed the plane safely at Anchorage.

Cleveland Volcano is within 5,675-foot Cleveland Mountain, a nearly symmetrical peak that looks like an inverted V.

Cleveland Volcano forms the western part of Chuginadak Island and is 45 miles west of tiny Nikolski and its 15 permanent residents on Umnak Island. In previous eruptions, the village was not threatened by as the plume dispersed in other directions.

The volcano experienced a significant eruption in February 2001. Three explosive events generated ash as high as 39,000 feet. The eruption also sent out lava and a hot avalanche that reached the ocean.

In the last 14 years, Cleveland Volcano has occasionally produced small lava flows and explosions with small ash clouds below 20,000 feet. The explosions have launched debris onto the slope of the cone and sometimes hot avalanches.

More in News

Alaska State Troopers logo.
COVID-19. (Image courtesy CDC)
Alaska reports record weekly and daily highs

The state reported a record single-day total of 353 cases on Saturday.

The Kenai Peninsula Borough building in Soldotna, Alaska. (Peninsula Clarion file photo)
Borough now accepting applications for housing relief program

The program will provide up to $1,200 per month, for four months, to eligible households.

A masked pumpkin entered into the City of Kenai’s pumpkin decorating is seen here during the Fall Pumpkin Festival in Kenai, Alaska on Oct. 10, 2020. (Photo by Brian Mazurek/Peninsula Clarion)
Masks get their day

Peninsula offers spooky, socially distanced Halloween events

Graphic showing the location of the Salamatof Boat Launch.
Salamatof Boat Launch to close to public Monday

Improvements to the launch include evening out the gravel road, providing a space close to the river

Chelsea Berg, a nurse at Peninsula Community Health Services, administers a flu shot during a free drive-thru flu shot event at Kenai Central High School in Kenai, Alaska, on Saturday, Oct. 24, 2020. (Photo by Brian Mazurek/Peninsula Clarion)
Drive-thru flu shots draw nearly 300

“We want people to be as healthy as possible and not get two diseases at one time.”

James Baisden, who is running to represent Alaska’s 30th District in the State House of Representatives, is seen here in Kenai, Alaska on Oct. 14, 2020. (Photo by Brian Mazurek/Peninsula Clarion)
Election 2020: House District 30 candidate James Baisden

Baisden discusses PFD, COVID and running as a petition candidate.

This graphic shows the Kenai Peninsula Borough School District risk levels associated with different numbers of new COVID-19 cases. (Image courtesy Kenai Peninsula Borough School District)
Eastern peninsula schools will continue remote learning through Oct. 28

Eastern peninsula schools include Moose Pass School, Seward Elementary, Seward Middle School and Seward High School.

Linda Galloway, of Kenai, fills out her absentee ballot at Kenai City Hall on Wednesday. (Photo by Brian Mazurek/Peninsula Clarion)
Questions on casting your ballot?

There are 12 days left until th Nov. 3 general election.

Most Read