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Seismicity Maps of Recent Earthquake Activity in the USA
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event.
This earthquake was reviewed by the USGS on-duty seismologist.
A light earthquake occurred at 22:29:27 (UTC) - Coordinated Universal Time on Tuesday, January 7, 2003.
The magnitude 4.3 event occurred 2 km (1 miles) W of Ridgemark, CA.
The hypocentral depth was 8 km ( 5 miles).
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Magnitude |
4.3 - regional moment magnitude (Mw) |
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Time |
Tuesday, January 7, 2003 at 22:29:27 (UTC) - Coordinated Universal Time
Tuesday, January 7, 2003 at 6:29:27 PM (AST) - Atlantic
Tuesday, January 7, 2003 at 5:29:27 PM (EST) - Eastern
Tuesday, January 7, 2003 at 4:29:27 PM (CST) - Central
Tuesday, January 7, 2003 at 3:29:27 PM (MST) - Mountain
Tuesday, January 7, 2003 at 2:29:27 PM (PST) - Pacific
Tuesday, January 7, 2003 at 1:29:27 PM (AKST) - Alaska
Tuesday, January 7, 2003 at 12:29:27 PM (HST) - Hawaii
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Distance from |
Ridgemark, CA - 2 km (1 miles) W (259 degrees)
Hollister, CA - 5 km (3 miles) S (170 degrees)
San Juan Bautista, CA - 14 km (9 miles) ESE (108 degrees)
Salinas, CA - 26 km (16 miles) ENE (59 degrees)
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Coordinates |
36 deg. 48.4 min. N (36.806N)
121 deg. 23.3 min. W (121.389W) |
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Depth |
8.5 km (5.3 miles) |
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Location Quality |
Excellent |
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Location Quality
Parameters |
Nst=227, Nph=227, Dmin=5 km, Rmss=0.08 sec, Erho=0.1 km, Erzz=0.2 km, Gp=32.4 degrees
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Event ID# |
nc40139808 |
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US Geological Survey
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