October 19, 2010
south southeast of Colorado City
A magnitude 3.0 earthquake shook the northern part of the state 15.14 km south southeast of Colorado City. This event follows an ~ 1 month period of quiescence in the region which generally experiences a moderate level of very low seismicity. This area is dominated by north trending high-angle normal faults. In the past, focal mechanisms for the region have shown Basin-Range style high-angle normal faulting on north to north-northwest trending surfaces that are parallel to subparallel in most cases to mapped Quaternary faults.
The data for this morning's earthquake are as follows:
- Magnitude (Md) 3.0 Tuesday, October 19, 2010 08:27:55 a.m. 36.855N x 113.022W
This event was detected on 13 stations, time picks were taken from 9
stations.