A recent quake swarm offshore Oregon may indicate a new phase of black smoker activity.
4.1
2008/04/03 03:48:38
44.506
-129.693
10.0
OFF THE COAST OF OREGON
4.0
2008/04/03 03:01:12
44.441
-129.445
10.0
OFF THE COAST OF OREGON
5.2
2008/04/02 05:55:42
44.345
-129.260
10.0
OFF THE COAST OF OREGON
4.2
2008/04/01 23:55:29
44.393
-130.505
10.0
OFF THE COAST OF OREGON
3.3
2008/04/01 22:08:55
40.466
-125.281
2.5
OFFSHORE NORTHERN CALIFORNIA
2.6
2008/04/01 14:35:19
44.650
-126.449
10.0
OFF THE COAST OF OREGON
2.7
2008/04/01 13:58:41
44.199
-129.335
10.0
OFF THE COAST OF OREGON
4.4
2008/03/31 02:21:20
44.441
-129.435
10.0
OFF THE COAST OF OREGON
3.7
2008/03/30 13:26:54
44.440
-128.842
10.0
OFF THE COAST OF OREGON
3.7
2008/03/30 12:21:38
44.756
-128.173
10.0
OFF THE COAST OF OREGON
4.2
2008/03/29 00:59:14
43.399
-126.854
10.0
OFF THE COAST OF OREGON
10-degree Map Centered at 45°N,130°W
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PLUS...
New article says this activity may be related to California's San Andreas, which also has geothermal vents...project for a geochemist?
When the Cascadia fault rocks, the San Andreas fault rolls.
At least that's how it appears in a new analysis of West Coast earthquakes led by an Oregon State University marine geologist.
Over the past 3,000 years, almost every major earthquake on California's San Andreas fault was closely linked in time with an earthquake on the Cascadia subduction zone, an offshore fault that stretches from Vancouver Island to Northern California. Generally, the Cascadia quakes preceded the California quakes by 25 to 45 years.
"It's either an amazing coincidence, or one fault triggered the other," said OSU's Chris Goldfinger. "Even if the details are fuzzy ... something is going on."
The team also found evidence that the southern part of the Cascadia fault may unleash earthquakes much more frequently than previously believed: every 270 years...
At least that's how it appears in a new analysis of West Coast earthquakes led by an Oregon State University marine geologist.
Over the past 3,000 years, almost every major earthquake on California's San Andreas fault was closely linked in time with an earthquake on the Cascadia subduction zone, an offshore fault that stretches from Vancouver Island to Northern California. Generally, the Cascadia quakes preceded the California quakes by 25 to 45 years.
"It's either an amazing coincidence, or one fault triggered the other," said OSU's Chris Goldfinger. "Even if the details are fuzzy ... something is going on."
The team also found evidence that the southern part of the Cascadia fault may unleash earthquakes much more frequently than previously believed: every 270 years...
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