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Figure 1. Map of the Whittier Narrows meizoseismal area showing mainshock epicenter (octagon), GEOS station locations (triangle - solid if co-sited with strong motion accelerograph), and physiographic boundaries and roads (solid line).


U.S. Geological Survey

Open-File Report 88-688

Digital Recordings of Aftershocks of the
1 October 1987 Whittier Narrows, California, Earthquake