Re: Little Quakes Here And There
Posted by Don In Hollister on June 10, 2002 at 15:13:09:

Hi Kate. The San Andreas fault runs through Bodega Bay. The history of the area is quite unique (Bodega Head) in that it hadn’t been formed there. The most prominent geological feature of Bodega Bay is Bodega Head, a peninsula that forms the protective arm between the ocean and the bay. The San Andreas fault runs right through it, separating steep rocky bluffs from sandy dunes.

Geologists believe Bodega Head was once a part of the Tehachapi Mountains, located 300 miles south of Sonoma County. The San Andreas fault runs underneath Bodega Head, both connecting it to and separating it from the mainland. On the West side of the fault, Bodega Head is comprised of granite, which can be found nowhere else along the coast, except for at Point Reyes and the Farallone Islands, until one reaches the Tehachapi’s. Seismic activity, scientists theorize, separated the mountain range into these separate -- but related -- rock sites.

This is much the same way for the Pinnacles here in San Benito County. They had their beginning as a volcano about 23 millions years ago near the town of Lancaster, California, which about 195 miles south of the Pinnacles.

That is what makes California so unique. Some of the things we see here were brought here from someplace else. Millions of years from now there will be something new to take its place. Take Care…Don in creepy town