Loma Prieta earthquake

The Loma Prieta earthquake occurred on October 17, 1989 in the greater San Francisco Bay Area in California at 5:04 pm local time and measured 7.1 on the Richter magnitude scale (6.9 on the Moment magnitude scale). The earthquake lasted for fifteen seconds. Its epicenter was at 37.04° N latitude, 121.88° W longitude near Loma Prieta Peak in the Santa Cruz Mountains, about ten miles (16 km) northeast of the town of Santa Cruz, California, in the Forest of Nisene Marks State Park.

External links

Seismology

• USGS: Loma Prieta
• USGS list of additional Loma Prieta sites
• Selected USGS photographs from the Loma Prieta earthquake
• Progress Toward a safer future since the 1989 Loma Prieta Earthquake

Transportation

• 15 Seconds That Changed San Francisco, San Francisco Chronicle, October 17, 2004. Overview with photographs; analysis of changes between 1989 and 2004.