Magnitude 4.0 Earthquake of NORTHERN CALIFORNIA USA 2012 September 14

2012 September 14 18:19:50 UTC: NORTHERN CALIFORNIA USA EARTHQUAKE

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Magnitude: 4.0

Date-Time: Friday, September 14, 2012 at 18:19:50 UTC

FFriday, September 14, 2012 at 11:19:50 AM at epicenter

Earthquake data:

Location : 40.437°N, 124.163°W

Depth : 26.8 km (16.7 miles)

Region : NORTHERN CALIFORNIA

Distances:

a)8 km (5 miles) SW (215°) from Rio Dell, CA

b)16 km (10 miles) NE (40°) from Petrolia, CA

c)39 km (24 miles) S (180°) from Eureka, CA

d)312 km (194 miles) NW (313°) from Sacramento, CA

Location Uncertainty:horizontal +/- 0.4 km (0.2 miles); depth +/- 0.6 km (0.4 miles)

Parameters: Nph= 32, Dmin=4 km, Rmss=0.13 sec, Gp= 83°, M-type=regional moment magnitude (Mw), Version=9