![]() ![]() Nobody is dying, but we need help, and we’re not sure who to call. It’s a life threatening emergency, who do I call? Maps of recent earthquakes, ShakeMaps for larger earthquakes, email notification, and moreįrequently asked questions about who to turn to for help in San Diego County: 2008)Įarthquake and Tsunami Hazards and Mitigation Information United States Geological Survey, Northern CaliforniaĮarthquake Shaking Potential Map of California (Dec. Southern California Earthquake Center, USGS, and CGSįault and earthquake maps, shaking hazard maps, liqufaction maps, and other information Lucy Jones.įault maps, historic earthquakes, how the ground is expected to shake, and much more The Scenario is also the basis of the 2009 ShakeOut activities in Southern California, as much more can still be learned in preparing for such a large earthquake! The Scenario is a product of the United States Geological Survey, Multi-Hazard Demonstration Project, led by Dr. Use this website to discover the hazards that exist in your area and learn how to reduce YOUR risk!Ĭounty of San Diego: Earthquake Facts and PreparednessĬounty of San Diego Office of Emergency Servicesĭesigned for the original ShakeOut in 2008, the ShakeOut Scenario is a detailed picture of a possible magnitude 7.8 earthquake along the southern San Andreas fault. For now, the following links provide local and statewide earthquake hazard information: This section will be updated with more detailed hazard information for this area. Still, with proper planning and preparedness, these potential losses can be greatly reduced. If a major earthquake occurs during fire season then the fire damage could easily exceed the damage caused by shaking. Most residents are less than 15 miles from the fault and ground shaking from a major event is sure to cause damage throughout the county.Įarthquake damage to buildings and infrastructure and secondary effects such as fires that often are started in earthquakes are a very real danger for all residents of the San Diego Area. The proximity of the fault to the city center and main economic hubs could put the entire area on hold for months or even years. Our relatively short history in the region has created a false sense of immunity from earthquakes in the San Diego Area, but a major earthquake along the length of the Rose Canyon Fault could result in devastating consequences. Yet it is considered active by the State as it has had a history of earthquakes in the last 11,000 years. ![]() The Rose Canyon Fault, the only major active earthquake fault in the urban San Diego Area, has not produced a major earthquake since long before European settlers arrived in the area. San Diego County on the other hand does not have the history of earthquakes common to the rest of southern California. Escondido, Poway, Julian and many other communities are very close to these faults. But it is possible for a large earthquake on the Elsinore or San Jacinto faults, and even the San Andreas, to cause much stronger shaking in San Diego county than has recently been experienced, with damage greatest in North and East County areas. These earthquakes are often felt in San Diego County but are usually too distant to cause more than a gentle roll. There are hundreds of active faults scattered throughout the region, and even though there are long periods between earthquakes on any particular fault, often much greater than a human lifetime, one or two of the many hundreds of faults has a significant earthquake every decade or so. This should be cause for concern among all citizens in the area.įrequent earthquakes in other southern California counties remind residents that they live in earthquake country. However it may surprise many to know that a major fault, called Rose Canyon, cuts right through the heart of downtown San Diego, through the center of San Diego Bay, and north through La Jolla and northward along the coast. This distance, and the lack of recent damaging earthquakes, may lead many residents of the San Diego area to believe that earthquakes are a problem for the rest of southern California. In southern California the San Andreas Fault often gets most of the attention, and both it and the San Jacinto Fault (the State's second most active fault, which runs through northeast San Diego County) are more than 60 miles away from the more populated parts of the county. San Diego County Earthquake Shaking Potential
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