Earthquakes Orange county

Earthquake activity:

Orange County-area historical earthquake activity is above California state average. It is 2458% greater than the overall U.S. average.

On 6/28/1992 at 11:57:34, a magnitude 7.6 (6.2 MB, 7.6 MS, 7.3 MW, Depth: 0.7 mi, Class: Major, Intensity: VIII - XII) earthquake occurred 82.5 miles away from the county center, causing 3 deaths (1 shaking deaths, 2 other deaths) and 400 injuries, causing $100,000,000 total damage and $40,000,000 insured losses
On 10/16/1999 at 09:46:44, a magnitude 7.4 (6.3 MB, 7.4 MS, 7.2 MW, 7.3 ML) earthquake occurred 98.0 miles away from the county center
On 4/21/1918 at 22:32:30, a magnitude 6.8 (6.8 UK, Class: Strong, Intensity: VII - IX) earthquake occurred 24.9 miles away from the county center
On 6/28/1992 at 15:05:30, a magnitude 6.9 (6.3 MB, 6.7 MS, 6.5 MW, 6.9 ME, Depth: 3.1 mi) earthquake occurred 71.2 miles away from Orange County center
On 1/17/1994 at 12:30:55, a magnitude 6.8 (6.4 MB, 6.8 MS, 6.7 MW, Depth: 11.4 mi) earthquake occurred 50.4 miles away from the county center, causing 60 deaths (60 shaking deaths) and 7000 injuries
On 2/9/1971 at 14:00:41, a magnitude 6.5 (6.5 UK) earthquake occurred 55.3 miles away from the county center, causing 65 deaths (65 shaking deaths), causing $535,000,000 total damage
Magnitude types: body-wave magnitude (MB), energy magnitude (ME), local magnitude (ML), surface-wave magnitude (MS), moment magnitude (MW)

Read more: http://www.city-data.com/county/Orange_County-CA.html#ixzz1Gggb1tqe