Well, this is interesting. We had an earlier 7.x in B.C., then a littler 6.x near it, now a big ol 7.x north of it in Alaska but still close. That chunk of fault is just being very active.
So first off, h/t to Crosspatch and Sabertoothed who both spotted it (and posted comments in two other threads).
But I do have to wonder if ‘three in a row’ means they are preshocks for something yet to come. IMHO, anyone in Alaska down through Washington / Oregon on the Cascadia needs go to a higher level of alert and preparedness. That much action, in the context of the prior 9 scale events on the other side of the plate in Indonesia (years back) and Japan (not so long back); and given the history of Great Quakes on that fault system (from the 8.6 in Anchorage years back to historic 9 scale events evidenced in the dirt – though with big error bars); well, it’s just not a time to be taking added risks. More like a time to check the “bug out bag” and gas up the car, stock some food and make sure the generator works…
With that, the particulars. I’m going to leave in the ‘static captures’ from the prior quakes so we can see the pattern.
Magnitude 7.5 - SOUTHEASTERN ALASKA 2013 January 05 08:58:16 UTC Earthquake Details This event has been reviewed by a seismologist.Magnitude 7.5 Date-Time Saturday, January 05, 2013 at 08:58:16 UTC Friday, January 04, 2013 at 11:58:16 PM at epicenter Time of Earthquake in other Time Zones Location 55.238°N, 134.777°W Depth 9.9 km (6.2 miles) Region SOUTHEASTERN ALASKA Distances 102 km (63 miles) W of Craig, Alaska 303 km (188 miles) WNW of Prince Rupert, Canada 335 km (208 miles) S of Juneau, Alaska 402 km (249 miles) WNW of Terrace, Canada Location Uncertainty horizontal +/- 16.1 km (10.0 miles); depth +/- 5 km (3.1 miles) Parameters NST= 17, Nph= 17, Dmin=108 km, Rmss=0.61 sec, Gp=162°, M-type=(unknown type), Version=8 Source Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D) Event ID usc000ejqv
British Columbia has a 7.7 (a while ago…)
Static captures of image:
British Columbia 6.3
Alaska originally 7.7, now 7.5
Live Close up:
Asia and Russia
Australia / New Zealand
This is a live map of the Australia / Indonesia / New Zealand area:
Action Closer to Me
As I live in California, it makes it easier for me if I keep them in the list where I can see what’s shaking near me.
Here is an alternative view of things with the fault lines highlighted:
Map of Plates
You can see it is where plates collide here:
Some Volcano Stuff
The Smithsonian page:
USGS Page listing recent major quakes: