It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Magnitude 2.2
Date-Time Saturday, December 03, 2011 at 19:43:32 UTC
Saturday, December 03, 2011 at 11:43:32 AM at epicenter
Time of Earthquake in other Time Zones
Location 48.366°N, 122.481°W
Depth 6.6 km (4.1 miles)
Region PUGET SOUND REGION, WASHINGTON
Distances 3 km (2 miles) SSE (158°) from La Conner, WA
10 km (6 miles) WNW (286°) from Conway, WA
13 km (8 miles) S (182°) from Bay View, WA
13 km (8 miles) WSW (242°) from Mount Vernon, WA
69 km (43 miles) E (101°) from Saanich, British Columbia, Canada
83 km (52 miles) N (352°) from Seattle, WA
Location Uncertainty horizontal +/- 0.6 km (0.4 miles); depth +/- 1.6 km (1.0 miles)
Parameters Nph= 28, Dmin=14 km, Rmss=0.22 sec, Gp= 79°,
M-type=duration magnitude (Md), Version=1
Source Pacific Northwest Seismograph Network
Event ID uw60366996
Since the magnitude 9.1 earthquake in Sumatra in 2004, five more giant earthquakes have struck the continents ringing the Pacific Ocean. And some experts speculate that the planet has entered a period of increased seismic activity that could trigger giant earthquakes in vulnerable regions including the Pacific Northwest.
A somewhat reassuring new study suggests otherwise.
University of California researchers examined the timing of earthquakes worldwide from 1900 and found no evidence of a domino effect in which one great earthquake triggers others on distant continents. It could be random chance.
"We don't want people to assume that our conclusion means the ongoing risk is small," says study co-author Peter Shearer, a professor of geophysics at the University of California San Diego. "There is a significant risk of big earthquakes in all subduction zones." It's just that the run of very large earthquakes most likely does nothing to change the risk in distant locations, Shearer says.
But the data is less than convincing to some experts, who think it's possible that short-term risk of a great earthquake has increased in the Northwest."There is a possibility that maybe we should be worried about this," says Oregon State University geologist Chris Goldfinger. "I definitely do not dismiss it."
Thorne Lay, a professor of geophysics at the University of California Santa Cruz, says scientists don't understand the physical processes well enough to rule out long-distance triggering of great earthquakes based on observations to date.
"One would really need to have good data in the location of each great event to see whether earlier remote large events had changed earthquake timing locally," he says. "Unfortunately, careful work has not been done in all regions of recent big events or the data are very poor due to lack of nearby seismic networks."
Originally posted by westcoast
reply to post by UtahRosebud
I'll definitely read though the article (great find!!!) but first I have to say that while I would like to agree with those saying there isn't evidence of remote triggering I think it rather ignorant to base this claim on only a couple hundred years of data. I don't understand how a geologist could ever make such a statement like that.
MAP 1.1 2012/01/25 16:40:24 46.405 -122.268 16.7 17 km ( 11 mi) S of Morton, WA
MAP 1.2 2012/01/25 11:22:38 46.340 -122.234 8.8 16 km ( 10 mi) NNW of Mount St. Helens Volcano, WA
MAP 3.4 2012/01/25 10:51:30 46.340 -122.236 8.9 16 km ( 10 mi) NNW of Mount St. Helens Volcano, WA
Magnitude 3.4
Date-Time Wednesday, January 25, 2012 at 10:51:30 UTC
Wednesday, January 25, 2012 at 02:51:30 AM at epicenter
Time of Earthquake in other Time Zones
Location 46.340°N, 122.236°W
Depth 8.9 km (5.5 miles)
Region WASHINGTON
Distances 16 km (10 miles) NNW (345°) from Mount St. Helens Volcano, WA
24 km (15 miles) S (172°) from Morton, WA
28 km (18 miles) SE (138°) from Mossyrock, WA
60 km (37 miles) ENE (68°) from Longview, WA
84 km (52 miles) NNE (20°) from Vancouver, WA
Location Uncertainty horizontal +/- 0.3 km (0.2 miles); depth +/- 0.4 km (0.2 miles)
Parameters Nph= 48, Dmin=2 km, Rmss=0.18 sec, Gp= 76°,
M-type=local magnitude (ML), Version=5
Source Pacific Northwest Seismograph Network
Event ID uw60389576
MAP 2.8 2012/02/04 10:16:59 47.318 -122.349 24.8 1 km ( 1 mi) NW of Federal Way, WA
MAP 2.5 2012/02/03 21:45:45 47.618 -122.481 25.4 6 km ( 4 mi) SE of Bainbridge Island, WA
MAP 1.8 2012/02/03 02:44:42 47.619 -122.496 28.6 5 km ( 3 mi) SE of Bainbridge Island, WA
MAP 1.8 2012/02/02 16:31:53 47.067 -121.839 19.6 16 km ( 10 mi) E of Carbonado, WA
MAP 1.6 2012/02/02 16:01:49 46.516 -122.426 19.9 5 km ( 3 mi) ESE of Mossyrock, WA
MAP 1.3 2012/01/31 00:49:36 47.395 -122.833 29.0 3 km ( 2 mi) N of Allyn-Grapeview, WA
MAP 1.5 2012/01/30 02:57:30 47.798 -121.950 25.4 7 km ( 5 mi) SSE of Monroe, WA
MAP 1.8 2012/01/29 18:49:57 46.857 -121.756 3.3 23 km ( 14 mi) ENE of Ashford, WA
MAP 1.5 2012/01/28 23:55:31 47.317 -122.440 4.6 6 km ( 4 mi) ENE of Ruston, WA
MAP 5.7 2012/02/04 20:05:32 48.867 -127.876 12.8 228 km (142 mi) WSW of Campbell River, Canada
MAP 3.0 2012/02/04 19:34:45 43.256 -125.010 4.9 51 km ( 32 mi) WNW of Bandon, OR
MAP 4.3 2012/02/04 19:34:34 43.203 -126.269 24.7 151 km ( 94 mi) W of Bandon, OR
Magnitude 5.7
Date-Time Saturday, February 04, 2012 at 20:05:32 UTC
Saturday, February 04, 2012 at 12:05:32 PM at epicenter
Location 48.867°N, 127.876°W
Depth 12.8 km (8.0 miles)
Region VANCOUVER ISLAND, CANADA REGION
Distances 228 km (142 miles) WSW (238°) from Campbell River, British Columbia, Canada
246 km (153 miles) WNW (284°) from Neah Bay, WA
277 km (172 miles) WNW (293°) from Forks, WA
332 km (206 miles) W (279°) from Saanich, British Columbia, Canada
349 km (217 miles) W (264°) from Vancouver, British Columbia, Canada
Location Uncertainty horizontal +/- 14.7 km (9.1 miles); depth +/- 7.8 km (4.8 miles)
Parameters NST=418, Nph=423, Dmin=171.4 km, Rmss=1.2 sec, Gp= 72°,
M-type=teleseismic moment magnitude (Mw), Version=8
Source Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID usb0007vx6