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Published on Jun 18, 2012
See the Newport-Inglewood fault light up as 5,000 seismometers (white circles) spaced 120 meters apart-roughly one per city block-in Long Beach, California, record a small earthquake. North is to the top; the array is bounded by the Los Angeles River to the west, the Pacific Ocean to the south, and Lakewood Boulevard to the east. The gray area in the upper right corner that contains relatively few seismometers is the Long Beach Airport; the thin, gray diagonal line is the runway itself.
This video is adapted from "Earthquake Waves in Your Neighborhood," presented by Professor of Geophysics Robert Clayton at Caltech's 75th Annual Alumni Seminar Day on May 19, 2012. Read the full story at http://features.caltech.edu/features/391