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, 283 (5407), 1516-8

An Elusive Blind-Thrust Fault Beneath Metropolitan Los Angeles

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An Elusive Blind-Thrust Fault Beneath Metropolitan Los Angeles

JH Shaw et al. Science.

Abstract

Seismic reflection profiles, petroleum wells, and relocated earthquakes reveal the presence of an active blind-thrust fault beneath metropolitan Los Angeles. A segment of this fault likely caused the 1987 Whittier Narrows (magnitude 6.0) earthquake. Mapped sizes of other fault segments suggest that the system is capable of much larger (magnitude 6.5 to 7) and more destructive earthquakes.

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