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. Measured at 6.9 on the Richter Scale, the worst damage was in the nearby cities of Watsonville and Santa Cruz. ", "37.04", "-121.88" This entry is a seed - a starting point for writing a full entry. View Nearby Seismicity . a magnitude 7.1 earthquake severely shook the greater San Francisco and Monterey Bay areas. Le séisme de 1989 à Loma Prieta (aussi connu en anglais sous les noms de Quake of '89 et World Series Earthquake [1]) s'est produit le 17 octobre 1989 dans la baie de San Francisco en Californie à 17 h 4 (heure locale). Figure 169 Shows Three Simulated Seismograms From The October 17, 1989, Loma Prieta Earthquake. It looks like your browser does not have JavaScript enabled. Epicenter of 1989 Loma Prieta earthquake The Loma Prieta earthquake occurred on 17 October 1989 at 5:04 p.m. local time and measured 7.1 on the Richter scale. The epicenter: Rediscovered photos show Loma Prieta quake’s Santa Cruz devastation Recently uncovered photos show how two cities in Santa Cruz County were forever changed by the 1989 quake In Part 3 (of, On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. Only two have occurred since the San Francisco earthquake. EventpageTectonic summary, maps and data. 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. ​Revisiting the 1989 Loma Prieta earthquake serves as an important reminder to all residents of California that the geologic processes responsible for creating the beautiful natural landscape we enjoy can sometimes occur suddenly and violently so it’s important to be prepared. 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. These effects: include the pattern and characteristics of strong ground shaking, liquefaction of both floodplain deposits along the Pajaro and Salinas Rivers in the Monterey Bay region and sandy artificial fills along the margins of San... Below are multimedia items associated with this project. 18,306 houses were damaged and 963 were destroyed. It was a tragic reminder of the destructive power of earthquakes. Overview . In Forest of Nicene Marks State Park, a state historic sign marks the approximate Ground Zero for October 17, 1989's Loma Prieta Earthquake, a magnitude 7.1. The epicenter was located approximately 14.5 km (9 mi) northeast of Santa Cruz and 96.6 km (60 mi) south-southeast of San Francisco, near Loma Prieta Peak in the Santa Cruz Mountains. However, it was also a watershed moment in seismic research. The San Andreas Fault is the boundary between the North American plate and the Pacific plate. However, it was also a watershed moment in seismic research. 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. Earthquake Hazards Zone Application (EQ Zapp), Highway Corridor Landslide Hazard Assessment, School, Hospital, and Environmental Reviews, EQ Zapp (A-P Fault Zones and Seismic Hazard Zones), Information Warehouse (reports, maps, and data), Center for Engineering Strong Motion Data, "Liquefaction Damage in the Marina District during the 1989 Loma Prieta Eaerthquake", Regulatory Earthquake Hazard Zones - San Francisco Bay Area, Regulatory Earthquake Hazard Zones - Southern Califonia Region. Did You Feel It?Map of shaking intensity based on 15,000+ reports from citizens who experienced the earthquake. And studied it. The epicenter was on the San Andreas fault roughly 56 miles south of San Francisco and 10 miles northeast of Santa Cruz, near Mt. 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. On October 17, 1989, at 5:04 p.m., a magnitude 6.9 (moment magnitude; surface-wave magnitude, 7.1) earthquake severely shook the San Francisco and Monterey Bay regions. No data point selected. Hazards . Monitoring . Each Was Recorded At A Different Seismic Station. This motion typically occurs in sudden jumps during large earthquakes. ​The anniversary of the Loma Prieta earthquake also marks the anniversary of the creation of the Seismic Hazards Zoning Program (SHZP), one of the key programs operated by California Geological Survey (CGS) to aid in preparedness. 5:04 p.m., Tuesday, October 17, 1989. A magnitude 5.2 aftershock occurred approximately 2.5 minutes after the main shock. (P.d.t.) The epicenter was located near Loma Prieta peak in the Santa Cruz Mountains, approximately 14 km (9 mi) northeast of Santa Cruz and 96 km (60 mi) south-southeast of San Francisco. 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. These are their stories. 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. Thousands of aftershocks were recorded. The purpose of this report is to provide a compilation of structural retrofits and replacements of older buildings and infrastructure in the San Francisco Bay Area that have either been completed since 1989 or that are in progress as of October 2018. Click the Map icon above for the location of the "Loma Prieta earthquake epicenter. 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. 30 years later, we revisit the earthquake through the eyes of the scientists who experienced it. It gives a brief definition of each concept and its relationships. The October 17, 1989, Loma Prieta, California, earthquake: selected photographs; 1999; DS; 29; Nakata, John K.; Meyer, C. E.; Wilshire, H. G.; Tinsley, J. C., III; Updegrove, W. S.; Peterson, D. M.; Ellen, S. D.; Haugerud, R. A.; McLaughlin, R. J.; Fisher, G. R.; Diggles, M. F. Progress toward a safer future since the 1989 Loma Prieta earthquake; 1999; FS; 151-99; Page, Robert A.; Stauffer, Peter H.; Hendley, James W., II. The aftershock zone stretched 25 miles, from north of Los Gatos near Highway 17 to south of Watsonville near Highway 101. Data & Products . The epicenter was located near Loma Prieta peak in the Santa Cruz Mountains, approximately 14 km (9 mi) northeast of Santa Cruz and 96 km (60 mi) south-southeast of San Francisco. 30 years later, we revisit the earthquake through the eyes of the scientists who experienced it. Magnitude established at 6.9 after consultation with monitoring stations around the world. 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. In Part 2 (of. Below are publications associated with this project. 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