The epicenter was located on the San Andreas fault roughly 56 miles south of San Francisco in the Santa Cruz Mountains. This motion typically occurs in sudden jumps during large earthquakes. a magnitude 7.1 earthquake severely shook the greater San Francisco and Monterey Bay areas. Loma Prieta in the Santa Cruz Mountains. This paper presents a survey of building pounding caused by the 1989 Loma Prieta earthquake. Over the course of that quarter-century, the physical scars of that devastating event have largely faded from view. The earthquake drill, which reminded people to drop, cover and hold, took place at 10:17 a.m., coinciding with the Loma Prieta anniversary. It was a tragic reminder of the destructive power of earthquakes. In Part 4 (of, On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. The Loma Prieta, California, Earthquake of October 17, 1989: Performance of the Built Environment; 1998; PP; 1552; Coordinated by Holzer, Thomas L. The Loma Prieta, California, Earthquake of October 17, 1989: Earthquake Occurrence; 1993; PP; 1550; Coordinated by Bakun, William H.; Prescott, William H. The Loma Prieta, California, Earthquake of October 17, 1989: Societal Response; 1993; PP; 1553; Coordinated by Mileti, Dennis S. The Loma Prieta, California, Earthquake of October 17, 1989: Strong Ground Motion and Ground Failure; 1992; PP; 1551; Coordinated by Holzer, Thomas L. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. Today marks the 30th anniversary of the Loma Prieta Earthquake that shook the San Francisco Bay Area on October 17, 1989. Saturday is the 20th anniversary of the Loma Prieta earthquake that killed 63 people, injured almost 3,800 and caused up to $10 billion damage. The 7.1 magnitude Loma Prieta earthquake occurred on October 17, 1989. Also, the World Series between the San Francisco Giants and Oakland A's was postponed. Several 5.0-plus seismic events in the two years preceding Loma Prieta also served as warnings. This effort represents just one of the many ways CGS strives to fulfill its mission to provide scientific products and services about the state's geology, seismology and mineral resources—including their related hazards—that affect the health, safety, and business interests of Californians. The most notable damage included the collapse of the elevated Cypress Structure section of Interstate 880 in Oakland, the collapse of a section of roadbed on the Bay Bridge, and extensive damage to downtown Santa Cruz and San Francisco's Marina District. In the week following Loma Prieta, 20 aftershocks magnitude 4.0 or greater and more than 300 of magnitude 2.5 or greater were recorded. Click on a pin on the map to see more information. The 6.0 quake caused nearly $1 billion on damage … Scientists deployed an analog system to notify first responders of impending earthquake activity as they worked on rescue efforts at the Cypress Viaduct collapse in Oakland, CA. The epicenter was on the San Andreas fault roughly 56 miles south of San Francisco and 10 miles northeast of Santa Cruz, near Mt. In Part 1 (of, On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. The aftershock zone stretched 25 miles, from north of Los Gatos near Highway 17 to south of Watsonville near Highway 101. They describe human behavior during and immediately after the... Professional Paper 1551 describes the effects at the land surface caused by the Loma Prieta earthquake. The 6.9 earthquake, centered in the Santa Cruz Mountains, took the … Retired seismologist David Oppenheimer reflects on the first prototype earthquake early warning system used during the 1989 Loma Prieta earthquake. 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