One or Two Quakes a Minute at in Washington

Tombstone · Post by **Tombstone** » Tue Sep 28, 2004 9:41 am

This is more of a local/regional story but I thought I would post it. We are due East of Mt. St. Helens.

Additional references:

http://www.pnsn.org/HELENS/welcome.html

http://vulcan.wr.usgs.gov/Volcanoes/Cas ... tActivity/

SEATTLE (AP) - Small earthquakes rattled Mount St. Helens at the rate of one or two a minute Monday, and seismologists were working to determine the significance of some of the most intense seismic activity in nearly 20 years.

Carbon dioxide and sulfur gas samples collected above the volcano - which erupted to devastating effect in 1980 - will help scientists figure out what is going on beneath the 925-foot-high dome of hardened lava within the mountain's gaping crater. They want to know whether the quakes are the result of water seeping into the mountain or magma moving under its crater.

In either case, scientists will continue to watch it from the Cascade Volcano Observatory operated by the U.S. Geological Survey in Vancouver, Wash., about 50 miles away.

"But if it's magma, we'll be a lot more nervous," said the observatory's chief scientist Jeff Winn.

Read more: http://apnews.myway.com/article/20040927/D85C9RN80.html

Tombstone · Post by **Tombstone** » Tue Sep 28, 2004 1:01 pm

List of Earthquakes:

http://www.pnsn.org/recenteqs/Maps/Moun ... ns_eqs.htm

Tombstone · Post by **Tombstone** » Tue Sep 28, 2004 9:46 pm

Mount St. Helens VolcanoCam

http://www.fs.fed.us/gpnf/volcanocams/msh/

pattybug52 · Post by **pattybug52** » Wed Sep 29, 2004 12:32 am

I think it is triggering a lot-I think it has to do with Mammoth Mountain having quakes and the Quake on San Andreas fault today-they are all somewhat connected and I expect more to come.

gmc · Post by **gmc** » Thu Sep 30, 2004 8:48 am

What about yellowstone par? Is that not some super volcano that is due an eruption, water levels rising etc as the land domes under the pressure.

http://www.members.tripod.com/tdebuff/webquest.htm

CVX · Post by **CVX** » Fri Oct 01, 2004 1:04 pm

Alarm as Mount St Helens erupts steam

SEATTLE, United States (AFP) - A huge plume of steam and ash erupted from Mount St. Helens, the volcano that devastated swathes of the US northwest when it erupted 24 years ago, witnesses and geologists said.

"The mountain began erupting some steam (around 12:15am (1915 GMT)," said Mount St. Helens park ranger Greg Pohl after a colleague first spotted the plume.

"At the moment it looks like a very small event and there is an ash pall that appears to be very small that seems to be heading in a westerly direction."

Seismologists at the US Geological Survey have been warning of a possible imminent eruption following more than a week of growing earthquake activity in the area.

But, they stressed, any explosion of the peak would not be as serious as the deadly 1980 explosion that killed 57 people and covered large swathes of the northwestern United States in ash.

http://news.yahoo.com/news?tmpl=story&c ... &printer=1

CVX · Post by **CVX** » Fri Oct 01, 2004 1:06 pm

Tourists flock to Mount St. Helens

MOUNT ST. HELENS, Washington (AP) -- Camcorder in hand, Sheri Ray stood on Johnston Ridge -- named for a man who died in the cataclysmic eruption of Mount St. Helens in 1980 -- and waited impatiently for the volcano to blow again.

"I thought I was going to feel earthquakes," she said, frowning. "I'm mad."

Even as scientists warn that Mount St. Helens may be about to blow, tourists are flocking to the peak, drawn by the intensifying rumblings from the nation's most cantankerous mountain, but reassured by predictions that any eruption would be far smaller than the one that killed 57 people more than two decades ago.

http://cnn.travel.printthis.clickabilit ... nerID=2015

CVX · Post by **CVX** » Fri Oct 01, 2004 1:09 pm

Eruption photos.

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