Thursday, January 29, 2009

Earthquake: 4.2 M - San Clemente Island

Update: Aftershock Details - 43 miles South of Avalon, CA
Magnitude - 3.1
Date-Time - Thursday, January 29, 2009 at 19:20:01 UTC
* Thursday, January 29, 2009 at 11:20:01 AM at epicenter

Location 32.718°N, 118.225°W
Depth 0.2 km (~0.1 mile) (poorly constrained)
Region CHANNEL ISLANDS REGION, CALIFORNIA
Distances

* 50 km (31 miles) SE (134°) from San Clemente Is., CA (NW tip)
* 70 km (43 miles) S (172°) from Avalon, CA
* 92 km (57 miles) W (261°) from La Jolla, CA
* 100 km (62 miles) WSW (237°) from Oceanside, CA
* 101 km (63 miles) W (266°) from San Diego, CA
Event ID ci10374081

A light earthquake occurred at 12:41:59 AM (PST) on Thursday, January 29, 2009.

The magnitude 4.2 event occurred 49 km (31 miles) SE of San Clemente Is., CA (NW tip).
The hypocentral depth is 0.4 km (0.2 miles).

Earthquake map
12:41:59 AM (PST) on Thursday, January 29,


Magnitude 4.2 - local magnitude (ML)
Time Thursday, January 29, 2009 at 12:41:59 AM (PST)
Thursday, January 29, 2009 at 8:41:59 (UTC)
Distance from San Clemente Is., CA (NW tip) - 49 km (31 miles) SE (133 degrees)
Avalon, CA - 69 km (43 miles) S (172 degrees)
La Jolla, CA - 91 km (57 miles) W (262 degrees)
Oceanside, CA - 99 km (62 miles) WSW (238 degrees)
San Diego, CA - 101 km (63 miles) W (267 degrees)
Coordinates 32 deg. 43.7 min. N (32.728N), 118 deg. 13.4 min. W (118.223W)
Depth 0.4 km (0.2 miles)
Location Quality Fair
Location Quality Parameters Nst=020, Nph=020, Dmin=32 km, Rmss=0.22 sec, Erho=1.2 km, Erzz=3 km, Gp=226.8 degrees
Event ID# ci10374021

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