How many people died in the 1989 Bay Bridge collapse?
One person was killed when a portion of the upper deck of the Bay Bridge–which had been scheduled for a retrofitting the following week—collapsed onto the lower level.
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On October 17, 1989, the San Francisco Bay area of the United States was jolted by the Loma Prieta earthquake. The quake's epicenter was near Loma Prieta Peak in the Santa Cruz Mountains. The magnitude 6.9 quake was the most powerful the state had experienced in several years.
In the 1989 Loma Prieta earthquake, one section of the upper deck of the Bay Bridge's eastern span collapsed onto the lower deck. The bridge was closed for repairs for a month.
Also known as the Great Chilean earthquake (Spanish: Gran terremoto de Chile), it was the most powerful earthquake ever recorded. The earthquake hit on May 22 in the afternoon (19:11 GMT, 15:11 local time), approximately 100 miles (160 km) off the coast of Chile, parallel to the city of Valdivia.
The Bay Bridge had lost one section of the upper deck during the quake and was closed for about a month while the California Department of Transportation made repairs.
We investigated the tsunami recorded at Monterey, California, during the 1989 Loma Prieta earthquake (MW=6.9). The first arrival of the tsunami was about 10 min after the origin time of the earthquake.