New fin seen in Mount St. Helens crater

May 03, 2006

A large fin has developed in the mile-wide Mount St. Helens crater, the result of lava upsurges, the Cascades Volcano Observatory reported.

Scientists say they expect the 300-foot-tall spire -- the size of a tilted-up football field -- to collapse into the crater's expanding dome, as others have since the volcano began erupting again 18 months ago, The Oregonian reported Wednesday.

The tip of the fin is about 7,698 feet above sea level, boosted by the volcano's rising lava dome. Scientists told the newspaper lava has been emerging from a crater vent at a rate of 3 to 6 feet a day.

The volcano -- which erupted May 18, 1980, in the most deadly and destructive volcano eruption in U.S. history -- is located about 100 miles south of Seattle, and about 53 miles northeast of Portland, Ore.

Copyright 2006 by United Press International

Explore further: Did Kathmandu shift? Questions and Answers

Related Stories

How an RNA gene silences a whole chromosome

1 hour ago

Researchers at Caltech have discovered how an abundant class of RNA genes, called long non-coding RNAs (lncRNAs, pronounced link RNAs) can regulate key genes. By studying an important lncRNA, called Xist, ...

Recommended for you

More than 2,200 confirmed dead in Nepal earthquake

Apr 26, 2015

A powerful aftershock shook Nepal on Sunday, making buildings sway and sending panicked Kathmandu residents running into the streets a day after a massive earthquake left more than 2,200 people dead.

Nepal quake: Nearly 1,400 dead, Everest shaken (Update)

Apr 25, 2015

Tens of thousands of people were spending the night in the open under a chilly and thunderous sky after a powerful earthquake devastated Nepal on Saturday, killing nearly 1,400, collapsing modern houses and ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.