== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 11:51:46 PM (PDT) on Tuesday, May 7, 2013.
The magnitude 0.4 event occurred 6 km (4 miles) SW of Millbrae, CA.
The hypocentral depth is 12 km ( 7 miles).
| Magnitude | |
0.4 - duration magnitude (Md) |
| Time | |
Tuesday, May 7, 2013 at 11:51:46 PM (PDT) Wednesday, May 8, 2013 at 6:51:46 (UTC) |
| Distance from | |
Millbrae, CA - 6 km (4 miles) SW (219 degrees) El Granada, CA - 7 km (4 miles) NNE (30 degrees) Burlingame, CA - 7 km (4 miles) WSW (242 degrees) San Francisco City Hall, CA - 24 km (15 miles) S (182 degrees) |
| Coordinates | |
37 deg. 33.3 min. N (37.555N), 122 deg. 25.8 min. W (122.430W) |
| Depth | |
11.6 km (7.2 miles) |
| Quality | |
Good |
| Location Quality Parameters | |
Nst= 7, Nph= 7, Dmin=3 km, Rmss=0.05 sec, Erho=1 km, Erzz=3.5 km, Gp=90 degrees |
| Event ID# | |
nc71987761 |
| Additional Information | |
map || waveforms |
|
Waveforms |
For more information, see http://quake.wr.usgs.gov/
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