6.3 M - BERING SEA

(I think this may have been downgraded to a 6.0)

6.3 M - BERING SEA

Preliminary Earthquake Report
Magnitude 6.3 M
Date-Time
30 Apr 2010 23:11:44 UTC
30 Apr 2010 14:11:44 near epicenter
30 Apr 2010 15:11:44 standard time in your timezone
Location 60.644N 177.901W
Depth 15 km
Distances
474 km (294 miles) SW (225 degrees) of Gambell, AK
478 km (297 miles) SSW (212 degrees) of Provideniya, Russia
1510 km (938 miles) W (280 degrees) of Anchorage, AK
Location Uncertainty Horizontal: 15.8 km; Vertical 3.8 km
Parameters Nph = 280; Dmin = 980.7 km; Rmss = 1.45 seconds; Gp = 43°
M-type = M; Version = 6
Event ID US 2010vscx ***This event supersedes event PT10120000.

Actually it's a double. 5 mins after the 6.3 a 6.0 hit the same area

Earthquake Details

Magnitude
6.0
Date-Time
Friday, April 30, 2010 at 23:16:29 UTC
Friday, April 30, 2010 at 02:16:29 PM at epicenter
Time of Earthquake in other Time Zones
Location
60.524°N, 177.728°W
Depth
15.7 km (9.8 miles)
Region
BERING SEA
Distances
478 km (297 miles) SW (224°) from Gambell, AK
486 km (302 miles) SSW (210°) from Provideniya, Russia
1505 km (935 miles) W (280°) from Anchorage, AK
Location Uncertainty
horizontal +/- 15.5 km (9.6 miles); depth +/- 3.9 km (2.4 miles)
Parameters
NST=232, Nph=233, Dmin=480.9 km, Rmss=0.96 sec, Gp= 36°,
M-type=body wave magnitude (Mb), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010vsc1
This event has been reviewed by a seismologist.

Michael wrote:Actually it's a double. 5 mins after the 6.3 a 6.0 hit the same area
...

Thanks for the correction, Michael--I didn't see that at all, and I'd only received one quake email. That's a pretty powerful double-header.

I thought it was one too till I saw someone on syzgyjob post both.

Michael wrote:I thought it was one too till I saw someone on syzgyjob post both.

After looking at the list of earthquakes (which I should've done in first place; but like you, I have a bad headache and am functioning at about 30% today), I see there was a 3rd quake--a 4.3 foreshock:

Magnitude 4.3
Date-Time

* Friday, April 30, 2010 at 23:10:23 UTC
* Friday, April 30, 2010 at 02:10:23 PM at epicenter
* Time of Earthquake in other Time Zones

Location 60.629°N, 177.900°W
Depth 14.2 km (8.8 miles)
Region BERING SEA
Distances

* 475 km (295 miles) SW (225°) from Gambell, AK
* 479 km (298 miles) SSW (212°) from Provideniya, Russia
* 1511 km (939 miles) W (280°) from Anchorage, AK

Location Uncertainty horizontal +/- 42.7 km (26.5 miles); depth +/- 7.6 km (4.7 miles)
Parameters NST= 28, Nph= 28, Dmin=>999 km, Rmss=1.5 sec, Gp=191°,
M-type=body wave magnitude (Mb), Version=6
Source

* USGS NEIC (WDCS-D)