BUILDING A GREAT MUSEUM FOR THE SAN FERNANDO VALLEY
Since today marks the 20th anniversary of the great Northridge earthquake, I thought this photograph from a recent gift to The Museum from Gary Fredburg would be a good time to see clear evidence of how important preparedness is for those of us who live in the Valley. This is only one of the many faults we live by and over. Earthquakes, says Dr. Lucy Jones, are the price we pay for living in one of the most beautiful and productive places in the world.
California Division of Mines - Bulletin 1972 - Geology and Mineral Deposits of San Fernando Quadrangle - Los Angeles County, California. Gift to The Museum of the San Fernando Valley from Gary Fredburg 2014. (click on image to enlarge it.)
Frontpiece: Dark pre-Cambrian Mendenhall gneiss - faulted against light Cretaceous (?) granddiorite on branch of the San Gabriel fault. Width of the exposure is about 25 feet, off Little Tujunga Road in Pacoima Canyon at the locality showing dip of fault 75 (degrees) north on plate 1. Photo by C.W. Jennings.
1 comment:
I've often had the whimsey of actually standing on or driving over the San Andres (such as on Highway 14 just above Palmdale) when the Big One hits (it's SO overdue) and seeing for myself the near-instantaneous off-set of 15 feet in front of my car (far enough in front that I have time to stop, or can hop out of the way if standing). There is a Lake right on the fault very near to that location that contains thousands of gallons of water that will almost certainly drain away at this time. It is filled with very large trout, so you can imagine what this earthquake will seem like to them.
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