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. Several 5.0-plus seismic events in the two years preceding Loma Prieta also served as warnings. Located deep in the Santa Cruz Mountains in an area known as The Forest of Nisene Marks is the actual epicenter of the Loma Prieta earthquake of 1989. Aptos, California. Regional Information . In Part 3 (of, On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. Hazards . The 1989 Loma Prieta earthquake occurred in Northern California on October 17 at 5:04 p.m. local time. Faultline: Remembering Loma PrietaA personal account of the events unfolding, by Mary K. Miller of the Exploratorium. The shock was centered in The Forest of Nisene Marks State Park approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains.With an M w magnitude of 6.9 and a maximum … Broadcaster Al Michaels reflects on his experience at the World Series in 1989, when he leaned on his Bay Area background during coverage of the devastating Loma Prieta earthquake. The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at 5:04 p.m. local time. Epicenter map of the Loma Prieta earthquake and the first four days of aftershocks. In Part 4 (of, On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. This movie shows shaking intensity as the seismic waves travel away from the earthquake epicenter over time. Felt Report - Tell Us! The shaking lasted 20 seconds. The 1989 Loma Prieta quake, which emphasized the suffering of the affluent Marina District of San Francisco sixty miles from the epicenter, had very little coverage of the distress caused in the largely African-American Oakland equidistant from the epicenter (Lee & Solomon, 1991; Smith, 1992). Wonderful hiking trail along a creek. Losses to these systems totaled approximated $5.9 billion. These are their stories. The aftershock zone stretched 25 miles, from north of Los Gatos near Highway 17 to south of Watsonville near Highway 101. Loma Prieta in the Santa Cruz Mountains. ShakemapMap showing ground motion and shaking intensity based on instrumental measurements of shaking along with information about local geology and the earthquake’s location and magnitude.
Currently, I serve on multiple conference advisory boards and am a frequent featured speaker at computer conferences worldwide. 5:04 p.m., Tuesday, October 17, 1989. ", "37.04", "-121.88" This entry is a seed - a starting point for writing a full entry. Retired seismologist David Oppenheimer reflects on the first prototype earthquake early warning system used during the 1989 Loma Prieta earthquake. It looks like your browser does not have JavaScript enabled. The last third was along a smaller hiking trail with a couple of stream crossings. This CD-ROM provides images for use by the interested public, multimedia... Professional Paper 1552 focuses on the response of buildings, lifelines, highway systems, and earth structures to the earthquake. The mainshock is shown as the star. Use Them To Answer The Following: 2 Where Was The Epicenter? 1989 Loma Prieta earthquake epicenter (Google Maps). The investigations evaluate the tools available to the research community to measure the nature, extent, and causes of damage and losses. Measured at 6.9 on the Richter Scale, the worst damage was in the nearby cities of Watsonville and Santa Cruz. On Tuesday, October 17, 1989, at 5:04 PM, the largest earthquake to strike the San Francisco Bay Area since 1906 shook the region violently for 15 seconds, killing 63 people and injuring over 3700. Earthquakes . Maps. Also, the World Series between the San Francisco Giants and Oakland A's was postponed. 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. The shock was centered in The Forest of Nisene Marks State Park approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains. Figure 169 Shows Three Simulated Seismograms From The October 17, 1989, Loma Prieta Earthquake. 30 years later, we revisit the earthquake through the eyes of the scientists who experienced it. You can help the Santa Cruz Wiki by expanding it! Loma Prleta ruptured the southernmost 30 miles of the break that caused the 1906 San Francisco Earthquake. Magnitude established at 6.9 after consultation with monitoring stations around the world. Ames Research Center experienced a vertical ground acceleration of greater than 1g. On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. Fire Road to Aptos Creek Trail and back 6 miles (4.2 miles in the summer); 2-3 hours; moderate; or strenuous as an 11-mile out-and-back continuing to Five Finger Falls . Interactive Map . 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. It examines how the fault that generated the earthquake ruptured, searches for and evaluates precursors that may have indicated an earthquake was coming, reviews forecasts of the earthquake, and describes the geology of the earthquake area and the crustal forces... Professional Paper 1553 describes how people and organizations responded to the earthquake and how the earthquake impacted people and society. And studied it. 1989 Loma Prieta Earthquake — Here's a look back at a shot from the aftermath of the Oct 17, 1989 M6.9 Loma Prieta earthquake. 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. Geologists had forecast a major earthquake in this area based on historical data, especially the lack of a major seismic event along the San Andreas fault since 1906 -- the 8.3 San Francisco earthquake. 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