== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/
Caltech/
CGS/
UCB/
UCSD/
UNR
Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A microearthquake occurred at 7:57:26 PM (PDT) on Tuesday, May 5, 2009.
The magnitude 1.9 event occurred 3 km (2 miles) E of Hayward, CA.
The hypocentral depth is 4 km ( 2 miles).
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Magnitude |
1.9 - duration magnitude (Md) |
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Time |
Tuesday, May 5, 2009 at 7:57:26 PM (PDT)
Wednesday, May 6, 2009 at 2:57:26 (UTC)
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Distance from |
Hayward, CA - 3 km (2 miles) E (93 degrees)
Fairview, CA - 4 km (3 miles) SSE (165 degrees)
Union City, CA - 6 km (3 miles) N (5 degrees)
Castro Valley, CA - 8 km (5 miles) SSE (154 degrees)
Oakland, CA - 24 km (15 miles) SE (136 degrees)
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Coordinates |
37 deg. 38.5 min. N (37.642N), 122 deg. 2.4 min. W (122.041W) |
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Depth |
3.9 km (2.4 miles) |
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Location Quality |
Excellent |
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Location Quality Parameters |
Nst= 50, Nph= 50, Dmin=3 km, Rmss=0.12 sec, Erho=0.2 km, Erzz=0.3 km, Gp=39.6 degrees
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Event ID# |
nc51221092 |
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Additional Information |
map with fault names
Google Earth KML (Requires Google Earth.)
NCSN First Motion Mechanism 1
Waveforms
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Did you feel it? ||
Shake Map North
For more information, see http://quake.wr.usgs.gov/
|| Contacts
Back to map
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