Magnitude 4.2 - SOUTHERN CALIFORNIA

Magnitude: 4.2
Region: Southern California
DateTime: Monday October 8 2012, 00:39:08 UTC
Depth: 7,7 km

Earthquake Details

Magnitude	4.2
Date-Time	Monday, October 08, 2012 at 00:39:08 UTC Sunday, October 07, 2012 at 05:39:08 PM at epicenter
Location	33.011°N, 116.314°W
Depth	7.7 km (4.8 miles)
Region	SOUTHERN CALIFORNIA
Distances	22 km (14 miles) SW (229°) from Ocotillo Wells, CA 26 km (16 miles) ESE (105°) from Julian, CA 27 km (17 miles) SSE (168°) from Borrego Springs, CA 57 km (36 miles) NNE (31°) from Tecate, Baja California, Mexico 73 km (45 miles) E (100°) from Escondido, CA 82 km (51 miles) ENE (71°) from San Diego, CA
Location Uncertainty	horizontal +/- 0.2 km (0.1 miles); depth +/- 0.9 km (0.6 miles)
Parameters	Nph=152, Dmin=17 km, Rmss=0.31 sec, Gp= 50°, M-type=local magnitude (ML), Version=1
Source	California Integrated Seismic Net: USGS Caltech CGS UCB UCSD UNR
Event ID	ci15226257

The potential impact of the earthquake: any people indoors feel movement. Hanging objects swing back and forth. People outdoors might not realize that an earthquake is occurring.

source: usgs