Mount St. Helens erupts again

Mount St Helens—the most active volcano in North America—erupted again on Tuesday, March 8, sending a cloud of ash and steam seven miles into the air. The venting began about an hour after a 2.0 magnitude earthquake shook the east side of the volcano, which has been mostly quiet since a few eruptions last September and October.

(A major eruption in 1980 killed 57 people, destroyed 200 homes, and reduced the height of the mountain's summit from 9,677 feet to 8,364 feet.)

Mount St Helen's is one of the most studied volcanoes in the world, and sensors show that lava moving into the crater left by the 1980 eruption has pushed the lava dome within the crater up by 500 feet. Scientists don't expect a major eruption, although they say that a bigger eruption could drop ash within a 10-mile radius of the crater at any time. Recent flights over the crater haven't measured high levels of gases. Instead, researchers think the volcano will continue to grow, as it did in 1986, with a series of small eruptions and a lava-dome building phase.

Video of an ash event on February 2 here

Live volcano cam at St.Helens

St. Helens Volcano Cam Image Archive.

NASA satellite images of Mount St Helens' October "hot spots".

USGS/NASA site about using Light Detection and Ranging (LIDAR) technology to study the volcano.

Your Comments, Thoughts, Questions, Ideas

KAZ's picture
KAZ says:

My friend Dave studies volcanism. He's pretty cool too!

posted on Thu, 03/10/2005 - 3:00pm
Michael Jackson's picture
Michael Jackson says:


posted on Tue, 03/25/2008 - 1:24pm
Anonymous  g's picture
Anonymous g says:

awesome how do they know all that!!!

posted on Tue, 03/25/2008 - 1:27pm
Anonymous's picture
Anonymous says:

thats cool i guess.

posted on Sat, 04/21/2007 - 2:08pm
Anonymous's picture
Anonymous says:


posted on Thu, 08/23/2007 - 3:45pm
Anonymous's picture
Anonymous says:

uh oh st helens has blown its top again will we have another bog eruption in the next 50 or so years and how will it affect us

posted on Tue, 07/10/2007 - 11:20am
Adam's picture
Adam says:

It exploded again in 2006.

posted on Tue, 07/10/2007 - 11:45am
Erik's picture
Erik says:

who knows when it couldhappen again, getting bigger than last time!!!!!!!!!!!!!

posted on Mon, 07/16/2007 - 11:16am
will nymoen's picture
will nymoen says:

wow! i did not know that was possible!

posted on Mon, 08/06/2007 - 7:54pm
Anonymous's picture
Anonymous says:

when did this happen? who reported it?

posted on Thu, 10/11/2007 - 2:49pm
Anonymous's picture
Anonymous says:

it is going to happen again

posted on Sat, 11/24/2007 - 1:49pm
ENZELMA's picture

mount st helens is the best mountain on earth. i love studing about mount helens

posted on Tue, 03/25/2008 - 10:42am
UGA BALOOGA's picture

of course it is going to happen again!!!!!!!!!!!!!!!!!!!!!!!!

posted on Sat, 11/29/2008 - 5:48pm
champagnechik's picture
champagnechik says:

omg wow mt st helens is soo interesting we have to do a storyboard bout it in my geography class
i need help!!!!!! due in tomorrow!! only done 10 a4 pages and need 6 more!!!!!!!!!!!!!

posted on Wed, 01/21/2009 - 1:43pm
Anonymous's picture
Anonymous says:

i went there went there when i was 4 or 5 and i really liked it its awsome you ppl should go see it

posted on Sat, 08/29/2009 - 10:35pm
stardustxx's picture
stardustxx says:

what is a volcano also what type of volcano is mount sain helens???

posted on Thu, 10/15/2009 - 11:54am
Liza's picture
Liza says:

Mount St. Helens is an active stratovolcano.

posted on Thu, 10/15/2009 - 2:17pm
sherly's picture
sherly says:

great qustion! a volcano is like a montain but it errupts lava.also, there are not types of volcnos that i know of.[ecspt acive and dead]but if you put it that way I am preety sure it is active . I hope you are having a good day at the scince musem! I am did you see the TITANIC egzebit? i did it is so totaly cool! bye!

posted on Thu, 10/15/2009 - 1:44pm
Tara's picture
Tara says:

I used to live in seattle washington i have an uncle that i visit just about every year or so and we have been keeping up on the status of mount st.helens,i would like to see a better warning system and people to study the reoccuring event to keep up the reearch and knowing when to evacuate.

posted on Thu, 01/14/2010 - 11:16pm
Anonymous's picture
Anonymous says:

I really want to see a volcano errupt on tv.

posted on Wed, 08/18/2010 - 11:41am
Alyra Adra's picture
Alyra Adra says:

I live in Tacoma, Washington and Mt. Rainer is the only Mountain i really see but i found this article quite helpful for me and my classmates paper, though we cant watch videos, I still found some of the wodrds helpful. (And this isnt my real name. :) Call me Vicky or Vee. Alyra Adra is just a cover up.)

posted on Fri, 10/28/2011 - 2:15pm

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