M 6.4 near Searles Lake, CA

At 10:33 am this morning, July 4, 2019, there was a Mw 6.4 earthquake centered a few miles northeast of Ridgecrest, California. The focus of the earthquake was mid-range in depth, about 10.7 km deep. So far, there have been numerous aftershocks ranging up to M 4.7 in size at the time of this writing. …

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Adopt-A-Highway Cleanup

Well, it has been a while but I finally made it back up to Grapevine Canyon for a more formal cleanup. I, and two others, cleaned up the upper and lower water stops along I-5 in Grapevine Canyon on Saturday, June 29, 2019. We filled nine bags and found many interesting items including a printer/copier. …

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San Diego Fossils

I’ve been doing a bit of work lately on my geologic study of central San Diego and have found many fossil sites. So far, none of the fossils have been very complete. Mostly shell fragments in condensed layers. The oldest found so far have been from the Eocene Mission Valley Formation, which is between 40 …

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Ridge Route Update

Representatives from the Ridge Route Preservation Organization, including myself, recently met with a few people from the Angeles National Forest regarding the Ridge Route. A summary of the meeting can be found on the ridgeroute.org site – http://www.ridgeroute.org/june-2019-update/ .

Geologic Report

In January, I was asked to do some research regarding the potential for a landslide on the Ridge Route near Templin Highway. I thought it would be a good opportunity to get some practice writing a geologic report. While I’m not a professional geologist, I still find it a lot of fun to do . …

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