== PRELIMINARY EVENT REPORT ==
California Integrated Seismic Net
USGS/
Caltech/
CGS/
UCB/
UCSD/
UNR
Version #1: This report supersedes any earlier reports of this event.
This is a computer-generated message. This event has not yet been reviewed by a seismologist.
An event occurred at 11:23:21 AM (PDT) on Friday, September 12, 2008.
The magnitude 1.4 event (a probable quarry explosion) occurred 11 km (7 miles) E of Quarry near Portola Valley, CA .
The hypocentral depth is 0 km (0.0 miles).
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Magnitude |
1.4 - duration magnitude (Md) |
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Time |
Friday, September 12, 2008 at 11:23:21 AM (PDT)
Friday, September 12, 2008 at 18:23:21 (UTC)
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Distance from |
Quarry near Portola Valley, CA (a probable quarry explosion) - 11 km (7 miles) E (96 degrees)
Los Altos, CA - 5 km (3 miles) S (188 degrees)
Cupertino, CA - 6 km (3 miles) W (275 degrees)
Los Altos Hills, CA - 6 km (4 miles) SSE (152 degrees)
Sunnyvale, CA - 9 km (6 miles) SW (232 degrees)
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Coordinates |
37 deg. 19.3 min. N (37.322N), 122 deg. 6.3 min. W (122.105W) |
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Depth |
0 km (0.0 miles) |
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Location Quality |
Good |
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Location Quality Parameters |
Nst= 16, Nph= 16, Dmin=2 km, Rmss=0.27 sec, Erho=0.4 km, Erzz=1.3 km, Gp=75.6 degrees
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Event ID# |
nc51207980 |
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Additional Information |
map with fault names
Google Earth KML (Requires Google Earth.)
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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