Activity thus far.

M+3

4.1 2010/04/04 22:49:44 38.804 -122.754 4.0 4 km ( 3 mi) SW of Cobb, CA
4.0 2010/04/04 22:49:17 38.818 -122.760 1.4 4 km ( 2 mi) WSW of Cobb, CA
6.9 2010/04/04 22:40:39 32.093 -115.249 32.3 26 km ( 16 mi) SSW of Guadalupe Victoria, Mexico

M+1

4.1 2010/04/04 22:49:44 38.804 -122.754 4.0 4 km ( 3 mi) SW of Cobb, CA
4.0 2010/04/04 22:49:17 38.818 -122.760 1.4 4 km ( 2 mi) WSW of Cobb, CA
2.3 2010/04/04 22:48:44 38.798 -122.743 1.7 4 km ( 3 mi) SSW of Cobb, CA
6.9 2010/04/04 22:40:39 32.093 -115.249 32.3 26 km ( 16 mi) SSW of Guadalupe Victoria, Mexico
3.3 2010/04/04 22:34:48 32.184 -115.287 0.2 20 km ( 13 mi) SW of Guadalupe Victoria, Mexico

Total of 8.