BOX RIDGE TIE IN EDM Array

Latitude: 33š34'55"
Longitude: 115š59'33"

Number of Bench marks: 6

Number of Surveys to 1993: 1
Date of Initial Survey: 5 August 1992
Date of Latest Survey: 5 August 1992

Trespass Permission: None needed, although the Bureau of Land Management probably believes that it should be notified.

Directions: From the town of Mecca, proceed northeast about 5 miles on Highway 195 to a point where the road crosses the San Andreas fault.

Comments: This array was established after the 28 June 1992 Landers earthquake to monitor the effect of that earthquake on the San Andreas fault. It ties an array that straddles Hwy 195 and the San Andreas fault to bench marks in a UCSB level line that lies 1 km to the northwest.

Reference:
Clark, M. M., 1984. Map showing recently active breaks along the San Andreas fault and associated faults between Salton Sea and Whitewater River - Mission Creek, California. U.S. Geological Survey Map I-1483, 1:24,000.

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