January 09, 2006
USGS Public Lecture
On Thursday, January 19th at 8:00 PM the U.S. Geological Survey (USGS) Pasadena Office will continue their free Public Lecture Series. The next presentation, entitled "The San Jacinto Fault: Little Brother of the San Andreas", will be given by Dr. Katherine Kendrick of the USGS Pasadena Office.
In southern California, the San Andreas fault splits into two strands south of Cajon Pass, the San Andreas and the San Jacinto faults. Both have produced large earthquakes in the past. The San Andreas is older, but the San Jacinto may be more active and may be carrying the majority of the plate motion where it is present. The San Jacinto fault may have formed where a bend in the San Andreas fault made it difficult for slip to pass through. In this presentation we will explore the risks associated with these two faults and examine the evidence for the relative activity of each fault. How do geologists study ancient earthquakes? We will look at the underground views of faults and depositional layers and discuss how we read the history that is preserved there. How do we find out how quickly faults moved in the past? We will learn about the geologic approach to understanding fault hazard in southern California.
| What: | USGS Public Lecture Series |
| When: | January 19th, 2006 at 8pm |
| Where: | Beckman Institute Auditorium, Caltech Campus |
All lectures are free and begin at 8 PM in Beckman Institute Auditorium on the Caltech campus in Pasadena. There is plenty of free parking available.
For more information see http://pasadena.wr.usgs.gov/info/lectures/ or call 626-583-6801.
(Submitted by W. Shindle)
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