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Seismic activity and topography of the sea floor off southern California^*

DEPARTMENT OF GEOLOGY, UNIVERSITY OF SOUTHERN CALIFORNIA

Abstract

THE POSITIONS of submarine epicenters of seismic shocks occurring during a twelve and one-quarter year period were plotted on a bathymetric chart of the area off southern California. The data show: (1) that the sea floor is active seismically, and (2) that the seismic activity and the topography are related. It appears that the major topographic features are of tectonic origin and that the forces which brought them about are still active.

Footnotes

^* Manuscript received for publication March 6, 1947.

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				C. R. ALLEN, P. ST. AMAND, C. F. RICHTER, and J. M. NORDQUIST Relationship between seismicity and geologic structure in the Southern California region Bulletin of the Seismological Society of America, August 1, 1965; 55(4): 753 - 797. [Abstract] [PDF]