1989 California, USA Earthquake
Loma Prieta, Santa Cruz, California — October 17, 1989
The 1989 Loma Prieta earthquake struck during the World Series between the San Francisco Giants and Oakland Athletics, making it one of the most widely witnessed disasters in American history. It collapsed a section of the Bay Bridge and the Cypress Street Viaduct, killing 42 people in a single structure.
Earthquake Facts
Magnitude
M6.9
Date
Oct 17, 1989
Depth
18 km
Deaths
63
Latitude
37.040°
Longitude
-121.880°
Tsunami
No
Region
California, USA
Tectonic Cause
Oblique-thrust rupture on a section of the San Andreas Fault system in the Santa Cruz Mountains. The earthquake occurred on a curved segment of the fault experiencing both compressive and shear forces.
Related Earthquakes in California, USA
Sources & Further Reading
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