Loma Prieta earthquake damage

Ames Research Center experienced a vertical ground acceleration of greater than 1g. Res., 104, 20169-20182, doi.org/10.1029/1999JB900092Ross S. Stein (1999), The role of stress transfer in earthquake occurrence, Nature, 402, 605–609, doi.org/10.1038/45144.Postdoctoral Seismic Risk Scientist at Natural Resources Canada Sixty-three people died, and nearly 3,800 were injured. So, ultimately, we will be proved right and great quakes will come. Modern office towers were largely unaffected, indicating that new… The quake struck with a moment magnitude of 6.9 on October 17, just before the start of the third game of the World Series, which was being held at San Francisco's Candlestick Park.

The reason for the Bay Bridge collapse became clear to Berkeley seismic engineers soon after the earthquake; sections of different lengths were riveted together, and each swayed at its own frequency, banging and breaking the section connections.

Much of the San Andreas is neither vertical nor right-lateral [Fuis et al., 2012], and there can be multiple closely-spaced rupture surfaces. "The Loma Prieta earthquake was a … It is a rough estimate that thousands of people may have otherwise been on the Cypress Structure during the 5:00 p.m. rush-hour, as the structure was said to have carried 195,000 vehicles a day.The earthquake is featured in films and television shows:

And some Bay Area cities and businesses, including the cities of San Francisco, Oakland and Berkeley; PG&E, Caltrans and Kaiser Permanente; and the campuses of U.C. The Parkfield section of the San Andreas is an example: The U.S. Geological Survey (USGS) instrumented that stretch with an exceptional monitoring array, but saw nothing whatsoever before the 2004 M6 Parkfield shock struck.

Because the epicenter locates to the west of the San Andreas Fault proper, and because the north part of the rupture involved thrusting rather than the expected right-lateral slip (whichever side you are on, the other side moves to the right), seismologists argued fiercely for a decade after the quake about whether Loma Prieta occurred on the San Andreas.

On October 17, 1989, at 5:04:15 p.m. (PDT), a magnitude 6.9 earthquake severely shook the San Francisco and Monterey Bay regions.

First and foremost, the earthquake triggered extraordinary acts of heroism, courage, cooperation and community. There has been progress. At first, TV viewers around the U.S. and those in the stadium thought the crowd was exceptionally raucous but it soon became clear that an earthquake had struck. Irrespective, the estuary deposits, mud rimming the Bay, and Gold Rush fill remain underfoot — in Oakland and Alameda, the Marina, the Financial District, SOMA, exacerbated by a decrepit seawall rimming the San Francisco waterfront. When that day arrives, we will be much more prepared than we were 30 years ago, but we will once again depend upon sacrifice and service of bystanders, neighbors and first responders.Brad Aagaard, USGS, Computer Simulation of the 1989 Loma Prieta ground motion in a 3D crustal velocity model, William H. Bakun and William H. Prescott (coordinators), The Loma Prieta Earthquake, U.S. Geological Survey Professional Paper 1550 (1994): Professional Paper 1550-A, Main Shock Characteristics, Paul Spudich, Editor; Professional Paper 1550-B, Forecasts, Ruth A. Harris, Editor; Professional Paper 1550-C, Preseismic Observations, Malcolm J.S. Soon after Loma Prieta, San Francisco Mayor Art Agnos had the seismically weak Embarcadero Freeway torn down and the historic Ferry Building restored, replacing an eyesore with unrivaled beauty.