compiled from data assembled by the Seismological Society of America in cooperation with the Hydrographic Office, Navy Department, the United States Geological Survey, the Carnegie Institution of Washington, the University of California and Stanford University ; mapping by Fred C. Scobey and Lot Bowen ; relief shading by John H. Renshawe ; underwater contours by the Hydrographic Office, Navy Department ; compilation of faults by Bailey Willis and H.O. Wood
Shows active, probable and dead faults.
Relief shown by shading. Bathymetry shown by isolines.
"Base compiled chiefly from latest U.S. Land Office, War Department, Forest Service, and Geological Survey topographic maps."
IIIF Manifest