9/12/2015 — Seattle, Washington M4.2 Earthquake — Mt. Rainier + Glacier Peak Volcano

A noteworthy M4.2 (M4.0 revised) earthquake has struck between Mount Rainier Volcano and Glacier Peak Volcano — East of downtown Seattle Washington, near Snoqualmie, WA.

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http://earthquake.usgs.gov/earthquake…

This is one of the larger earthquakes to strike the area over the past year… there was just one other M4.4 which struck two weeks ago.

This new M4.0+ movement over the past 2 weeks shows that the Pacific Northwest is under renewed stress, meaning we need to be on watch for adjacent nearby areas to possibly show larger movement over the next week.

This puts Vancouver BC (to the North), and California (to the South) in the mix over the next several days. We need to be on watch for similar (or larger) magnitude releases along the adjacent faults to this location in Washington State.

9/05/2015 — Major earthquake swarm strikes Atka Volcanic Center in Alaskan Aleutian Islands

A large earthquake swarm is currently striking Alaska in the Central Aleutian islands near the “Atka Volcanic Center“.

The largest event so far has topped out at M5.7, with dozens of other M4.0 – M5.0 earthquakes all striking near the same location off the shores of Atka island.

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The Atka Volcanic Complex consists of multiple volcanoes , including Korovin Volcano, Mount Atka, Mount Sergief, Mount Koniuji, and Kasatochi Volcano.

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The Aleutian islands extend off the Southern coast of Alaska, reaching West across the Northern Pacific Ocean, bordering the arctic circle.

These islands are known for their past volcanic activity, with a few active volcanoes actually extending out Westward from Alaska towards Kamchatka Russia.

We could very well be observing a volcanic earthquake swarm which is the sign of a coming eruption.  Worthy to note that Atka Volcano hasn’t erupted since 1995.

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Any time we see large earthquake swarm activity at a volcanic location along this segment of the North Pacific, we need to watch out for NEW activity to strike the West coast of the United States, and also in the far West Pacific.

Volcanic seismicity in the North Pacific is a sign of greater plate unrest , thus we need to be on watch not only in Alaska at this swarm location (for an eruption OR large earthquake), but also we need to be on watch in adjacent areas several thousand miles away to the Southeast, and Southwest from this location in Alaska.

This North Pacific earthquake swarm now certainly has put the West coast United States, and East coast of Japan in the mix.

This new volcanic swarm comes on the heels of an earthquake which struck near Mount Saint Helens yesterday.  The Mt. St. Helens earthquake which struck a day ago (June 3, 2015) is just another sign of the Pacific plate unrest unfolding before our eyes.


Be on watch along the West coast of the United States, and in Japan over the next several days until mid-next week.  I’ll have a new earthquake update up by September 8th – 9th.

If you’re curious about which areas should see activity, watch the most recent earthquake forecast here:

 

9/03/2015 — Mount Saint Helens Earthquake — M3.1 strikes near North flank in Washington State

Any time we begin to see seismic unrest surrounding an active volcano, we need to pay attention.

In this case, a magnitude 3.1 earthquake has struck the Northern flank of Mount Saint Helens volcano.

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Mount Saint Helens is confirmed to be rising again from below.  Professionals confirmed this past year (2014) that Mt. Saint Helens magma chamber is “recharging”.

Here is the full story on the magma chamber below Mt. St. Helens recharging (re-pressurizing):

http://dutchsinse.com/512014-pacific-northwest-magma-chambers-re-pressurize-mt-saint-helens-showing-rise/


The most recent earthquake forecast covered the West coast volcanic seismicity issue.

See the forecast for the West coast of the United States (California, Oregon, Washington State) here:


Information on this earthquake from the USGS:

Magnitude/uncertainty 3.1 ml± 0.2
Location/uncertainty 46.357°N 122.267°W± 0.3 km
Depth/uncertainty 11.8 km± 0.5
Origin Time
Number of Stations 46
Number of Phases 53
Minimum Distance 3.96 km (0.04°)
Travel Time Residual 0.13 sec
Azimuthal Gap 55°
FE Region Washington (29)