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By JEFF POHJOLA
A recent swarm of earthquakes has geologists keeping a close eye on Mount Saint Helens.
The USGS says 15 small quakes, mostly in the magnitude 1 range, shook the mountain over the weekend. A spokesman at the seismology lab at the University Washington, Bill Steele, says the quakes were caused by faults and not volcanic activity.
The most powerful quake measured just 2.2 on the Richter Scale. They were about two miles deep just northwest of the volcano.
A series of small earthquakes near Mount St. Helens has drawn attention to the sleeping giant once again. The Pacific Northwest Seismic Network has recorded a total of 14 quakes since Thursday. Five of them struck that day, but none was stronger than a magnitude 1.8 quake. Eight more quakes hit Saturday, including a magnitude 2.6. Most of the quakes happened about six miles north of the crater. The latest, a magnitude 2.2, happened at about 12:40 a.m. Sunday. A report from the Cascades Volcano Observatory on Friday said the volcano was at a normal level of seismicity. Scientists said that even though Mount St. Helens sits on an area of tectonic weakness, they're not too alarmed about the recent swarm of earthquakes because this type of activity can be quite common for an active volcano.
Originally posted by getreadyalready
reply to post by Human_Alien
I think there was a lot of activity there just about a year and a half ago, but it quickly died out. I could be confusing it with Yellowstone though.
The worst and/or largest snowstorm in our history, all-time record low temperatures forecast for Texas, early sunrises in the North, Astrology signs changing, EQ and Volcanic activity ramping up in all kinds of ways. Rebellions in the Middle East and a "war on cops" brewing in the U.S.
Seems like things are just going to continue to get more and more interesting for 2011!
11/01/18 06:41:50 46.19N 122.18W 3.1-0.4 AB
11/01/18 23:33:36 46.20N 122.19W 2.9 0.4 AA
11/01/21 22:58:35 46.19N 122.17W 3.5-0.9 AB
11/01/22 20:53:42 46.19N 122.18W 3.0-1.2 AB
11/01/23 06:31:31 46.19N 122.19W 2.3 0.6 BA
11/01/25 07:21:48 46.19N 122.17W 6.4-0.4 AD
11/01/25 22:07:24 46.20N 122.16W 4.5-0.5 AD
11/01/25 23:41:20 46.19N 122.19W 2.3 1.9 AA
11/01/26 15:33:10 46.19N 122.18W 2.8-0.3 AA
11/01/27 09:56:34 46.21N 122.19W 5.0-1.1 AB
11/01/27 13:27:00 46.19N 122.18W 4.1-0.1 AA
11/01/27 13:38:44 46.19N 122.18W 4.3-0.9 AA
11/01/29 02:01:29 46.19N 122.17W 6.5 0.6 AC
11/01/31 17:40:45 46.20N 122.18W 2.5 0.8 AA
11/01/31 17:48:05 46.20N 122.18W 3.5-0.5 AA
Originally posted by Resurrectio
reply to post by eightonefive
Not to mention, the hot ash melting all the snow east of the eruption... Can you say "Floods of biblical proportions!"
Originally posted by tsawyer2
reply to post by Human_Alien
I see that the article made sure to say that these quakes were made by faults and no volcano activity, but wouldn't you think that fault quakes would affect the magma chamber under the mountain? Possibly allowing the magma to move to new locations or create more pressure?
I'm not a vulcanologist, so hopefully someone more knowledgeable here can give us some insight.