Was checking maps just now and noticed a brief swarm near Borego Springs. There seems to be two groups, the most recent has as of this writing seven events within 5 minutes.

http://www.data.scec.org/recenteqs/Maps/117-34.html

1.5 2010/02/07 21:17:24 33.355N 116.441W 12.3 13 km ( 8 mi) NNW of Borrego Springs, CA
1.4 2010/02/07 21:17:01 33.366N 116.416W 12.3 13 km ( 8 mi) NNW of Borrego Springs, CA
2.3 2010/02/07 21:16:05 33.352N 116.440W 11.1 13 km ( 8 mi) NNW of Borrego Springs, CA
1.9 2010/02/07 21:15:38 33.340N 116.433W 7.8 11 km ( 7 mi) NNW of Borrego Springs, CA
1.5 2010/02/07 21:15:08 33.377N 116.424W 3.9 14 km ( 9 mi) NNW of Borrego Springs, CA
1.5 2010/02/07 21:14:45 33.358N 116.411W 13.6 12 km ( 7 mi) NNW of Borrego Springs, CA
1.4 2010/02/07 21:13:46 33.354N 116.433W 10.5 12 km ( 8 mi) NNW of Borrego Springs, CA

1.7 2010/02/07 10:04:09 33.341N 116.358W 11.8 10 km ( 6 mi) N of Borrego Springs, CA
2.0 2010/02/07 10:03:22 33.345N 116.372W 13.1 10 km ( 6 mi) N of Borrego Springs, CA
1.6 2010/02/07 10:00:24 33.350N 116.359W 13.6 11 km ( 7 mi) N of Borrego Springs, CA
1.5 2010/02/07 07:47:13 33.346N 116.358W 11.9 10 km ( 6 mi) N of Borrego Springs, CA