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Date and time. Iceland: 1. Near Junagadh, Gujarat, India 19 reports. Australia: Mornington, VIC 53 reports. ILP 50 reports. Northern Mariana Islands: Mariana Islands. New Zealand 1 report. New Zealand 13 reports. Near Coast of Central Chile 57 reports. Seram, Indonesia. Indonesia: Southern Molucca Sea 1 report.
ILP 13 reports. ILP reports. Tonga: New Zealand. South of Tonga Islands 1 report. Mendoza Province, Argentina reports. Northern Sumatra, Indonesia. Serbia: NW Balkan Region reports.
Mid Indian Ridge. IL 15 reports. Indonesia: Banda Sea 25 reports. Carlsberg Ridge 1 report. South Sandwich Islands Region. New Caledonia: Southeast of Loyalty Islands 1 report. France: Valdahon F 40 reports.
ILP 82 reports. Switzerland: Sanetschpass VS 11 reports. IL 33 reports. Vanuatu Islands 1 report. Loyalty Islands, New Caledonia.
Near Tokushima, Tokushima, Japan 2 reports. Greece: 7 Km W From Arkalochori 11 reports. ILP 95 reports. India: Gadchiroli, Maharashtra 36 reports. Greece: 7 Km W From Arkalochori 12 reports.
Serbia: NW Balkan Region 77 reports. Indonesia: Banda Sea 7 reports. Western Indian Antarctic Ridge. Fiji Islands Region. ILP 14 reports. Central Peru 2 reports. Albania 33 reports. Spain: CANT reports.
ILP 12 reports. Near Melbourne, Victoria, Australia 20 reports. Near Limassol, Limassol, Cyprus 12 reports. Near Limassol, Limassol, Cyprus 53 reports. Near Tokyo, Tokyo, Japan 40 reports. ILP 18 reports. IL 12 reports. South Africa Region 51 reports. Near Johannesburg, Gauteng, South Africa reports.
Near Sumulice, Central Serbia, Serbia 15 reports. Spain: ATL 25 reports. New Zealand. Near Limassol, Limassol, Cyprus 35 reports. Russia: Sea of Okhotsk. Ukraine 22 reports. ILP 68 reports. ILP 34 reports. Off East Coast of Honshu, Japan 2 reports. Near Montreal, Quebec, Canada 12 reports. ILP 16 reports. East of South Sandwich Islands. Chile-Argentina Border Region reports.
New Guinea, Papua New Guinea 1 report. Near Polokwane, Limpopo, South Africa 63 reports. New Zealand 22 reports. Although earlier earthquakes have been documented —such as significant movement on the southern San Andreas fault all the way back to the s—the earliest reported earthquake in California was on July 28, , noted by members of a Spanish expedition to chart a land route from San Diego to Monterey.
Based on descriptions of the quake, it was likely a moderate or strong earthquake. Some described the shaking in expedition diaries as violent, occurring over the next several days, suggesting aftershocks.
Although the magnitude and epicenter are unclear, by comparing the descriptions with more recent events, the quake may have been similar in strength to the Long Beach or Whittier Narrows earthquake. Jump to the most Recent Earthquakes in California. Although most of California's quakes are small in magnitude and cause little or no damage, California experiences more than per day!
Many notable shakers—moderate or major earthquakes in California—have made history and are still remembered and talked about today. Earthquake Magnitude Scale This list of earthquakes in California is marked with colored circles indicating magnitude. Where the specific magnitude scale e. The scale is as follows:. Magnitude 4. Magnitude 5. Magnitude 6. Magnitude 7. Antelope Valley July 8, M6. On the afternoon of July 8, , at least several dozen earthquakes struck Little Antelope Valley, which is in Inyo National Forest, approximately 20 miles southwest of Smith Valley, Nevada.
The quakes were a result of normal faulting and strike slip faults near the Antelope Valley fault, which runs north-south along the Sierra Nevada range front. The largest, a 6.
The magnitude 6. Aftershocks continued to be felt into the night, with a magnitude 4. Damage from the earthquakes on July 8 was minor and included a rockslide in Coleville and items falling from shelves in nearby stores. Learn how personal preparedness and practicing critical steps to safety can help you be ready. And if you own your home, one of the best things to do before the next big earthquake strikes is to strengthen it with a seismic retrofit.
Get started at StrengthenMyHouse. What is Your Earthquake Risk? The first quake on September 30, striking in the late afternoon, was a M3. The largest, a M4. The swarm lasted for several days, stabilizing at a low rate by Oct. There were no reports of damage, but the swarm is a reminder to be earthquake ready. According to USGS, this earthquake swarm is in an area of diffuse seismic activity between the San Andreas fault to the north and the Imperial fault to the south.
Past swarms in this area include the Westmorland swarm, where the highest magnitude was a 5. In August of , a swarm of earthquakes had also struck in the same area, the largest being a magnitude 4. A magnitude 4. It was widely felt across the region , even as far south as San Diego , and was followed by several aftershocks.
The area is seismically active—this quake was not far from the epicenter of the Whittier Narrows earthquake , which caused extensive damage. In , the La Habra quake struck along the Puente Hills thrust fault, displacing residents. The thrust fault is considered especially dangerous as it runs along a dense urban area downtown Los Angeles. After a foreshock with a magnitude of 4. People felt the shaking as far away as miles northwest in San Francisco and miles east in Las Vegas.
People reported feeling shaking as far as Sacramento and Los Angeles , too. CEA had approximately policyholders in the affected area. Learn more at StrengthenMyHouse. On June 3, , a magnitude 5. Lucy Jones tweeted that it was a large, late aftershock of the Ridgecrest sequence, which produced quakes as large as M6. Residents in the area expressed anxiety about this new shaker, noting they never know if it is an aftershock or a sign of a larger quake to come.
Learn how to be better prepared to survive and recover from an earthquake by reading about what to do before an earthquake strikes. A magnitude 7. Multiple aftershocks occurred after both, one as large as magnitude 5. The 7. On June 10, , people near Borrego Springs were woken up at a. The quake occurred on the San Jacinto fault , which is considered by experts to be the most active fault in Southern California. Luckily, the quake caused no major damage—just some fallen household items and store merchandise—but was felt throughout a large portion of Southern California.
In the early morning of August 24, , a magnitude 6. In Napa County, the quake killed one person, injured at least people, and caused severe damage to buildings and moderate damage to more than 1, buildings. In Solano County, it injured at least 49 people, caused severe damage to 10 buildings and caused moderate damage to more than 30 buildings.
The quake also damaged roads, water mains and gas lines in these counties; disrupted utility services in Sonoma County; and caused fires in Napa County. This earthquake was felt as far north as Arcata and as far south as Bakersfield.
It was also felt in numerous cities in Nevada. The magnitude 5. The quake resulted in power outages and damage including ruptured water mains, broken glass and rockslides one even caused a car to overturn. It happened just an hour after a magnitude 3. Nearly two dozen aftershocks followed. On March 17, , a magnitude 4. This was the largest earthquake in Los Angeles since the aftershocks of the Northridge quake.
At least six aftershocks were reported. On the night of March 9, , a magnitude 6. While there was no recorded damage, the quake was felt widely. On May 23, a magnitude 5. It damaged chimneys, caused broken water pipes and rock falls, and caused one house to shift off of its foundation. On August 26, , a magnitude 5. It was part of a swarm of at least events of varying magnitudes, ranging from smaller than 2.
On April 4, , the magnitude 7. It was the largest earthquake to strike in this area since Liquefaction was widespread, causing damage to farmland, highways, buildings and homes. On January 10, , a magnitude 6. Broken glass injured some people at a local mall, and mild to moderate damage to homes and buildings occurred. This earthquake was felt throughout Northern California and parts of Oregon and Nevada. A little before noon, on July 29, , a magnitude 5.
It was felt as far away as Las Vegas. There also were minor injuries, power outages and transit disruptions, and a fire began in a movie theater in Santa Ana as a result of a damaged light fixture.
On October 30, , an earthquake with a preliminary magnitude 5. Later downgraded to a magnitude 5. This is because the epicenter was to the southeast of populated centers, and the fault ruptured southward, away from those populated areas. On September 28, , a magnitude 6. It ruptured the same segment that ruptured in and was the seventh earthquake on this stretch of the fault since Strong shaking was felt for about 10 seconds.
The December 22, , San Simeon earthquake, which had a magnitude 6. The most severe damage from this quake was to unreinforced masonry structures that had not been seismically retrofitted in order to better withstand earthquakes. In Paso Robles, the collapse of one of these such building types collapsed, killing two women.
On September 9, , a magnitude 4. It caused some dishes to fall, but there were no major injuries or damage. A magnitude 2. On August 10, , a magnitude 5. It caused slight damage in the towns of Portola and Quincy in Plumas County. The earthquake was felt widely, in Sacramento to the south and in Reno, Nevada, to the east. A spokesperson for the U. A magnitude 5. It caused one death and more than 40 injuries, including the critical injury of a young boy who was hurt by falling fireplace bricks.
The quake occurred on a previously unknown fault. On October 16, , the magnitude 7. A small cluster of foreshocks began almost a day before the mainshock. The Hector Mine quake reportedly knocked a passenger train off a track, however, causing a few people to sustain minor injuries, and it damaged two highway bridges.
It also caused short power outages to more than , customers in Southern California. Additionally, there were a couple of small aftershocks. On August 12, , a magnitude 5. The earthquake injured two people in Santa Cruz County and caused damage such as cracks in plaster walls, cracks on Highway , and fallen household items. Additionally, utility services were briefly disrupted in some locations. On November 27, , a magnitude 5.
Two earthquakes occurred in in the same general area, about 10 miles north of the town of Ridgecrest , just about a month apart. The first, on August 17, was a magnitude 5. It produced more than 2, aftershocks in the five weeks that followed. The second significant shock was on September 20, with a magnitude of 5. The second quake produced close to 2, aftershocks! On January 17, , a magnitude 6. The quake hit the insurance industry hard: many insurers had greatly underestimated the costs associated with a major earthquake.
By , many had restricted or stopped writing residential insurance policies, sending the California housing market into a tailspin.
In response to this crisis, CEA was created. On the early morning of June 28, , a magnitude 7. Although its epicenter was in a sparsely populated area, it was said to have been felt throughout the Los Angeles area , Arizona, Nevada, and Idaho. That same morning, a magnitude 6. This quake caused considerable damage in the Big Bear area, causing a mile-long fault rupture and landslide s that blocked and damaged roads in the San Bernardino Mountains.
Between the two quakes, at least people were injured, one child died from a fallen chimney, and two others died of heart attacks. The Cape Mendocino earthquakes struck near Petrolia on April 25, The first quake, a magnitude 7.
The shaking caused severe damage, massive landslides , a tsunami, and injured hundreds of people. The quake also shook the Petrolia fire house so hard that the garage door jammed, trapping the fire engine inside. The volunteer fire crew was then unable to put out the fires that followed the quake. On April 22, , a magnitude 6. More than 30 people were treated for minor injuries.
There were several aftershocks. On the morning of June 28, , a magnitude 5. Unreinforced masonry buildings suffered the most damage. The quake also caused rockslides that blocked mountain roads. It was felt extensively throughout the entire Bay Area. The Loma Prieta quake was the first major event to occur along the San Andreas fault zone since the San Francisco earthquake.
A house damaged by the Loma Prieta earthquake. Photo credit: U. Geological Survey. On October 1, , a magnitude 5. It caused eight deaths. More vulnerable types of residences , such as those not anchored to their foundations, those constructed of masonry, or houses built over garages with large door openings, sustained the most damage. On July 21, , a magnitude 6. The quake fractured ground in some places, caused rockslides and landslides in others, and caused significant property damage.
Damage included broken ceiling tiles, plaster, chimneys, windows and walls at buildings in Bishop, as well as damage to homes and utility lines in Chalfant when mobilehomes were shaken off their supports. The earthquake was felt as far away as Salt Lake City, Utah. Foreshocks had been felt for up to three weeks prior.
On the morning of July 13, , a magnitude 5. Twenty-nine people were hurt, and one person died. The damage, to at least 50 buildings, stretched from Newport Beach to San Diego , and there was also a small landslide in eastern San Diego County.
There was a large aftershock sequence, also offshore. On July 8, , a magnitude 5. It caused at least 29 injuries, damaged or destroyed more than 50 homes in the Palm Springs-Morongo Valley area and caused landslides.
This magnitude 6. Damage was concentrated closer to the town of Morgan Hill and the Anderson Reservoir. Longtime residents of the Central Valley will remember the Coalinga earthquake of May 2, , which occurred on a previously unknown fault and injured 94 people, mostly from furniture and other items falling or being thrown about, and from people being knocked to the ground from the shaking.
An assessment by the American Red Cross stated that single-family houses and 33 apartment buildings were almost destroyed; single-family houses, 94 mobilehomes and 39 apartment buildings sustained major damage; and single-family houses, 22 mobilehomes and 70 apartment buildings sustained minor damage.
Failed cornice and exterior walls of a building in the restricted area of heavily damaged downtown Coalinga. May 4, On November 8, , a magnitude 7. Six people were injured, and aftershocks were felt for days. The earthquake was felt in parts of California, Oregon and Nevada. Considering the size of the quake, damage was light, although structural damage did occur.
Chimneys fell and, in Fields Landing, at least four wood-frame houses were shifted off their foundations, with two falling partly to the ground. Also, Tompkins Hill Road overpass suffered partial collapse, and there were a few minor landslides , areas of liquefaction , and ground cracks. On May 25, , around a. In the next 16 minutes, five shocks between magnitude 4. Within 48 hours of the initial quake, 72 magnitude 4. There were also thousands of shakes under magnitude 3.
There were also widespread landslides and rockfalls. In the middle of the night on February 25, , a magnitude 5. It was not considered a major earthquake or even a highly damaging earthquake—no injuries were reported—but it did cause landslides that closed Highway 74 between Spring Crest and Palm Springs, and it also caused a fire in Rancho Mirage when a gas line broke in a home.
Additionally, minor damage, such as broken dishes and windows, was reported in many parts of Southern California. On October 15, , a magnitude 6. The quake destroyed two houses and 11 commercial buildings and damaged more than 1, houses and more than commercial buildings. The Imperial County Services building in El Centro had to be razed after the eastern part of the building partly collapsed.
This included damage to chimneys in older houses, broken glassware in stores, and structural damage to five buildings in the town of Gilroy. For example, in Gilroy, a wall cracked in the City Hall building, and a ceiling caved in inside a room within the Municipal Courthouse. The earthquake damaged a fire station at Pacheco Pass, and a nearby lookout station was vacated because of damage, as well.
This earthquake was felt near Bakersfield and Sacramento, and at least aftershocks were recorded. In the late afternoon of August 13, , a magnitude 5.
Notable damage included a freight train being derailed, a roof collapsing, and several buildings and at least one bridge being damaged. By amazing coincidence, just one day before the earthquake and its aftershocks happened, four new seismographs were installed in the area near the epicenter!
It was felt in many parts of Northern California and Western Nevada. This earthquake also caused structural damage cracked chimneys, walls, windows and plaster at several schools, homes and hospitals in southern Butte County. On February 9, , a magnitude 6. More than 2, people were injured. Several other hospitals were also damaged, and newly constructed freeway overpasses collapsed. Had the quake struck at a busier time of day, loss of life would have likely been even greater.
Seismic shaking, compression and extension along the length of the roadway were responsible for the damage in this image. This view, looking east, shows the overpass, which was completed although not all segments were yet in service , as well as San Fernando Valley Juvenile Hall at right.
Feb 11, On April 8, , a magnitude 6. It was felt as far away as the Yosemite Valley, Fresno and Las Vegas, and it caused damage across much of Southern California: power lines severed in San Diego County , collapsed ceilings in the Imperial Valley, cracked plaster in Los Angeles , landslides close to the epicenter, and minor surface rupture that cracked Highway The earthquake also caused small displacements along the Superstition Hills fault, Imperial fault and Banning-Mission Creek fault, miles from the epicenter.
On September 12, , a magnitude 5. Damage such as fallen chimneys and cracked walls occurred in nearby Loyalton, Sierraville, Boca, Hirschdale and Hobart Mills. There were landslides and rockslides, and pipelines, bridges, dams and roads were also affected. On June 27, , a magnitude 6. Luckily, little damage was reported, because the area was not well-populated. There had been five magnitude 6 earthquakes in the same area prior to the earthquake, occurring in , , , and Two earthquakes in March , a magnitude 5.
One death is attributed to the March 22 earthquake. In Daly City, chimneys were damaged, and there was some minor damage at homes near the ocean west of Daly City. In San Francisco , the earthquakes damaged chimneys, plaster, windows and merchandise. There were also cracks on the shoulder of Highway 1, as well as landslides blocking the roadway near Mussel Rock. On December 21, , a magnitude 6. Some underground utilities were also damaged, and a water tank collapsed.
On March 19, , a magnitude 6. The magnitude 7. It was felt over a large area, including in Nevada, San Francisco and San Diego —and even caused damage in these locations. Hundreds of buildings in the Kern County area were damaged, and at least buildings had to be torn down as a result of this earthquake.
There was extensive damage to a railroad section, and to land used for agriculture and irrigation. On December 4, , a magnitude 6. Fortunately, no lives were lost. It was felt as far north as Bakersfield, as far west as Catalina Island, as far east as Central Arizona and as far south as Mexico. Walls and buildings cracked in Escondido, Corona and Pasadena. Landslides and ground cracks occurred closer to the epicenter.
In Palm Springs, two people were injured, buildings were damaged or collapsed, and thousands of dollars of merchandise was destroyed when it fell from shelves. On April 10, , a magnitude 6. However, there were reports of cracked floors and walls, a few collapsed structures, and heavy objects being moved.
This quake was notable because it was the largest earthquake at that time—and the first to cause surface rupture about three miles of rupture —in the Mojave Block tectonic region. On October 21, , an earthquake of magnitude 6.
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