M1.0 Quarry Blast - 2km SSW of Quarry near Clayton, CA (BETA) 2013-02-12 21:52:07 UTC

Earthquake location 37.915°N, 121.951°W

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Summary

Location and Magnitude contributed by: Northern California Seismic Network, UC Berkeley & USGS Menlo Park

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Technical

Location and Magnitude contributed by: Northern California Seismic Network, UC Berkeley & USGS Menlo Park

Summary

Preferred Location Parameters

Parameter	Value	Uncertainty
Magnitude	1.0 Md	± 0.30
Location	37.915°N, 121.951°W	± 0.4 km
Depth	0.0 km	± 31.6 km
Number of Stations Used	Not Specified
Number of Phases Used	7
Minimum Distance	4.0 km (0.04°)
Travel Time Residual	0.05 sec
Azimuthal Gap	83°
Review Status	REVIEWED
Event ID	nc71936160

See the “Contributed Solutions” for a list of all contributed location parameters.

Contributed Solutions

Technical Terms used on Event Pages

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Product	Title	Links	ID
origin (Preferred) (NC)	Earthquake XML (EQXML)	XML (1013 B)	nc71936160

The use of EQXML formatted data is temporary. This data will be changing to QuakeML v1.2RC3 format.

U.S. Department of the Interior | U.S. Geological Survey
Page URL: http://comcat.cr.usgs.gov/earthquakes/eventpage/nc71936160
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Page Last Modified: February 14, 2013 02:49:55 UTC

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