![]() ![]() For example, some scientists believe that the 1857 Tejon earthquake was the largest to hit California in historic times, and other experts rank the San Francisco Earthquake of 1906 as the larger of the two. Again the sizes of earlier quakes are estimates, and they will differ depending on which authority is being consulted. The earthquake, centered 45 miles northeast of San Luis Obispo, ruptured a length of 225 miles along the San Andreas fault on the morning of Jan. Listed below are the top ten earthquakes to have hit California in historic times. Because seismographs were not available prior to 1898, the magnitudes of earthquakes prior to then must be estimated from the intensity of damage associated with the quake as reported by witnesses to the event. Thus, it depends on the amplitude of the surface wave associated with the quake. This value is calculated from the distance that the needle on a seismograph moves during an earthquake. ![]() ![]() The magnitudes that the USGS gives for earthquakes after 1898 are similar to the famous Richter scale, in which the magnitude, more or less, represents the energy of the earthquake. Earthquakes can be so small theyre unnoticeable and cause little or no damage, while major quakes can be accompanied by roaring and rumbling sounds. We have not adjusted damage estimates for inflation. These are earthquakes of magnitude greater than or equal to 6.5, or that caused loss of life or more than 200,000 in damage. Currently, there isnt a way to predict when and where theyll occur, but its always a good idea to be prepared for one. Big California Earthquakes Below is a table of significant California earthquakes, sorted chronologically (most recent first). Updates on recent earthquakes from 2005 to the present are based on entries in Wikipedia. Earthquakes are a fact of life in California. The above table from 1769 to 2004 is based on " California Earthquake History 1769-present", which is a list put together by the United States Geological Survey (USGS). Cars were struck by rocks, but nobody was injured, the California Highway Patrol. Some honorable mentions are highlighted in light yellow. A 6.0 magnitude earthquake that struck south of Lake Tahoe Thursday afternoon was felt across the Bay Area. The top ten earthquakes of California are highlighted in dark yellow, and their ranking given in blue. Dozens of earthquakes have been documented in the last few hundred years, and many of them have been deadly. If we're going to be prepared for the "big one," it's important to understand what happened during the worst California earthquakes on record and which places are most vulnerable. This list catalogs the worst California quakes and might shed some light on how to prepare for earthquakes of the future.Listed below are the major historic earthquakes with a magnitude of 6 or greater that have hit California prior to the year 2000. Earthquake Warning California is the country’s first publicly available, statewide warning system that could give California residents crucial seconds to take cover before you feel shaking. You don't have to look far in California's earthquake history to see just how bad a quake can get. The highest magnitude earthquakes in California's history have caused death and mass destruction, often costing the state millions in repairs. The majority of Californians live within 30 miles of an active fault line, and the likelihood of a powerful earthquake in the coming decades is extremely high. Luckily for Californians, only about 500 of those faults are active today, but hardly any area of the state is completely immune to earthquakes. A 4.2-magnitude earthquake and its aftershocks rolled through the Los Angeles area early on Thursday morning, but there were no immediate reports of damage. California has always been a hotbed of seismic activity, largely thanks to the over 15,000 fault lines found throughout the state.
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