Category Archives: Geology

Fault, Geology, Image, La Jolla, San Diego, San Diego County

Image of the Week – 1/19/15

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Normal fault in Cretaceous turbidite deposits in the La Jolla Shores area.
Normal fault in Cretaceous turbidite deposits in the La Jolla Shores area.
Fault, Geology, Hemet, Image, Riverside County, San Jacinto Fault

Image of the Week – 11/11/14

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Bautista Canyon between Hemet and Anza in Riverside County. This follows the San Jacinto Fault.
Bautista Canyon between Hemet and Anza in Riverside County. This follows the San Jacinto Fault.
Geology, Hiking, Image, Los Angeles County, San Gabriel Mountains

Image of the Week – 11/1/14

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On the trail to Mt San Antonio along Devils Backbone.
On the trail to Mt San Antonio along Devils Backbone.
Baja California, Earthquake, Geology, Image, Mexico, Old Alignment

Image of the Week – 9/15/14

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Old alignment of Hwy 2, now offset by about 2 feet horizontally and 5 feet vertically.
Old alignment of Mexico Hwy 2, now offset by about 2 feet horizontally and 5 feet vertically.
Earthquake, Geology, San Bernardino County

M4.6 near Big Bear Lake, CA

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At 9:59am on July 5, 2014, a M4.6 earthquake struck near Big Bear Lake. The focus was 5.4 miles deep.  If you felt this earthquake, the USGS wants to know! Watch for debris on the roadways in that area (State Highways 18, 38, 138, 173, 189, and 330).

Shakemap showing intensity.
Shakemap showing intensity.
Map showing area where people felt the quake and at what intensity.
Map showing area where people felt the quake and at what intensity.