April 7, 2009

Alaska earthquake hits 4.7 magnitude

A very large earthquake hit the Matanuska-Susitna Valley in Alaska Tuesday afternoon. Preliminary reports say it was a 4.7 magnitude.

The earthquake's center was near Big Lake, Alaska.

Earthquake Details

Magnitude 4.7 (Preliminary magnitude - subject to revision)
Date-Time
* Tuesday, April 07, 2009 at 20:12:54 UTC
* Tuesday, April 07, 2009 at 12:12:54 PM at epicenter
Location 61.475°N, 149.805°W
Depth 26 km (16.2 miles) set by location program
Region SOUTHERN ALASKA
Distances
* 8 km (5 miles) SSE (147°) from Big Lake, AK
* 12 km (8 miles) WSW (242°) from Knik-Fairview, AK
* 13 km (8 miles) NNE (27°) from Point MacKenzie, AK
* 32 km (20 miles) N (356°) from Anchorage, AK
Location Uncertainty Error estimate not available
Parameters NST=013, Nph=013, Dmin=38.2 km, Rmss=0.56 sec, Gp=108°,
M-type=local magnitude (ML), Version=1
Source
* West Coast and Alaska Tsunami Warning Center/NOAA/NWS
Event ID at00913517