1989 Loma Prieta Earthquake: A Seismic Reminder
The Largest Earthquake to Hit the Bay Area in Over a Century
October 17, 1989
On October 17, 1989, at 5:04:15 PM PDT, a magnitude 6.9 earthquake struck the San Francisco Bay Area, causing significant damage and loss of life. The epicenter was located on the San Andreas Fault near Loma Prieta Peak, about 10 miles southwest of San Jose.
The earthquake was felt as far south as Los Angeles and as far north as Eureka. It caused widespread power outages, gas leaks, and the collapse of several bridges. The most notable damage occurred in San Francisco, where a section of the Bay Bridge collapsed, killing 42 people.
The Loma Prieta Earthquake was a reminder of the seismic risks facing the San Francisco Bay Area. It led to the implementation of stricter building codes and the creation of the California Earthquake Early Warning System, which is designed to provide a few seconds of warning before an earthquake strikes.
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