San Diego earthquake
December 14, 2012 (San Diego)—Residents across San Diego County were awakened at 2:36 a.m. by a 6.3 earthquake centered 172 miles to the southwest, off the coast of Mexico.
The quake struck at a depth of seven miles. Aftershocks have occurred, the strongest measuring 4.7. No tsunami warnings have been issued.
According to the U.S. Geological Survey, the temblor occurred due to “shallow normal faulting within the oceanic lithosphere of the Pacific plate.”
July 1, 2012 (San Diego’s East County) – Two quakes measuring 4.6 and 4.7 on the Richter scale struck Baja, California during the night.
The first jolt earthquake struck at 8:25 p.m.; the second at 11:36 p.m.
The jolts were felt throughout San Diego, according to the U.S. Geological Service which received reports from residents in Lakeside, Ramona, Solana Beach and Chula Vista. The quake also rattled Imperial County.
March 30, 2012 (San Diego)—A quake measuring 3.3 on the Richter scale and centered 4 miles southwest of the Palomar Observatory rattle the region at 12:06 a.m. The quake, centered on the Elsinore fault line, was felt as far away as El Cajon.
A cluster of small quakes have occurred recently on the Elsinore fault, including a 3.3 quake southeast of Julian on March 28. According to the Southern California Earthquake Data Center, the Elsinore Fault is capable of producing a magnitude 7.5 temblor.
East County News Service
July 10, 2010 (San Diego’s East County) – Fault lines in and near East County have become more active since the Easter earthquake in Mexico. Both the San Jacinto and Elsinore faults have potential for a quake measuring 7.0 or higher, according to the U.S. Geological Survey. Fortunately, planning and identifying hazards ahead of time can reduce risk of serious harm before an earthquake hits.
For example, repairing deep plaster cracks in ceilings and foundations, anchoring overhead lights to the ceiling, and upgrading to meet local seismic building standards help reduce the impact of a quake. Creating an emergency supply kit and a family evacuation plan are also important. Below are earthquake safety tips providing by the Federal Emergency Management Agency (FEMA) that you can take now—before a major quake hits our region.
July 9, 2010 (San Diego’s East County) – Since the Easter Sunday earthquake in Mexico, strong tremors and aftershocks have moved northwards and westwards. The 5.4 magnitude quake near Borrego on July 7 had its epicenter in San Diego’s East County, leaving residents wondering whether the temblor is a late aftershock from the Mexico earthquake—or a precursor of a larger quake yet to come. The quakes also raise questions over whether it's time to invest in earthquake insurance--or at least seismic retrofitting for your home or business.
June 14, 2010 (San Diego's East County) -- A 5.7 earthquake struck 5 miles southeast of Ocotillo, near the San Diego County line, at 9:38 p.m. The jolt, originally reported as a 5.9, was later downgraded by the U.S. Geological Service, was felt throughout San Diego but most strongly in communities in East County.
A dozen aftershocks have already struck in the first 20 minutes after the initial quake. In addition, a 3.0 quake was centered 11 miles east of Pine Valley in San Diego County.
"It was a pretty long jolt," said Sharon Courmousis, owner of Sacred Rocks RV Park in Boulevard, an East County community which she estimates is 20 to 30 miles from the quake's epicenter. "We've had a lot of aftershocks but no damage. I was sitting in my RV. It really rolled us, but nothing jolted off its pedestal."
June 12, 2010 (Borrego) – Two earthquakes measuring 4.9 and 4.5 on the Richter scale struck less than a minute apart tonight. The temblors were centered nine and ten miles north-northwest of Borrego Springs, near Julian in San Diego’s East County.
May 22, 2010 (San Diego’s East County) – Two earthquakes measuring 5.3 and 4.8 in magnitude struck at 10:33 and 10:00 a.m. The temblors were centered 14 and 13 miles SSW of Seeley, California, according to the U.S. Geological Service.
The quakes caused significant shaking in East County and San Diego, causing windows to rattle on Mount Helix. If you had damage from the quake, please post in the comments section below. Click here to see an enlarged map.
No reports of damage have been received, said a dispatcher for Heartland Fire, which services much of East County.
By Miriam Raftery
April 9, 2010 (San Diego) – Border Angels, a San Diego-based organization, is seeking donations of nonperishable food, clothing, tents, sleeping bags, water and other vital supplies for earthquake victims left homeless with no electricity or water in Baja California, Mexico. In some areas, flooding caused by the quake has compounded the misery. "Water sprouting from the ground has sulfur," Estela Flores told East County Magazine.
Flores was in the area when the quake struck. "We all heard the rocks rolling down the mountains. We just looked up to see all the dust," she said.
By Miriam Raftery
April 8, 2010 – How safe would giant wind turbines, power stations, high voltage lines, and a dump proposed for East County be during a powerful earthquake? Consumer advocates and area residents are raising those questions—and the answers in some cases are unsettling.
QUAKE TOLL RISES AS AFTERSHOCKS CONTINUE; MINOR DAMAGES FOUND LOCALLY AS EAST COUNTY BUSINESSES REOPEN AFTER HOLIDAY WEEKEND
By Miriam Raftery
April 6, 2010 (San Diego’s East County) – The governor of Baja California, Mexico estimates that 25,000 people have been left homeless by the 7.2 earthquake that struck Mexico on Easter Sunday.
Estimates of those injured range from 50,000 to 100,000 and at least three people have been killed. Damage is most severe in Mexicali, where some buildings have collapsed. In some areas, roadways have buckled and cracked, including these in La Rumorosa. In Mexicali, fissures several feet deep have opened up in the shifting earth.
By Miriam Raftery
April 5, 2010 (San Diego’s East County) – Many area residents were awakened by aftershocks during the night following yesterday’s 7.2 earthquake in Mexico. In neighboring Imperial County, Calexico was the hardest hit U.S. city, with historic buildings in several blocks of downtown cordoned off and 80% red-tagged by authorities, Channel 7 news reports. In San Diego and East County, officials continue taking stock of damage and residents tell their stories.
“It was pretty darn strong out here,” said Jan Hedlun, a planning board member and resident in Potrero, located just a couple of miles north of the Mexican border town of Tecate. Hedlund said she went outside and “could see the land rolling and the electrical poles weaving.”
Major damage in Mexicali; minor damage to some East County facilities
5% chance of even bigger quake in next few days - Cal Tech
By Miriam Raftery
April 4, 2010 (San Diego’s East County) – The U.S. Geological Service has upgraded the quake that struck108 miles southeeast of Tijuana today to 7.2--stronger than the quake that leveled Haiti.
In San Diego’s East County, the Campo Cal-Fire station and Otay Rural Fire Protection District facility sustained minor damage to a water system and communications, Cal-Fire Battalion Chief Nick Schuler told ECM this evening.
April 5, 2010 (San Diego's East County) - 3:45 p.m. - A powerful 6.9 earthquake struck at 3:40 p.m. Easter Sunday, centered near Guadalupe Victoria in Baja California Mexico, about 108 miles south of Tijuana. The powerful temblor was felt throughout East County and San Diego.
Strong aftershocks are likely. To learn what to do during a quake, see: http://www.fema.gov/hazard/earthquake/eq_during.shtm.
February 17, 2010 (San Diego's East County) --- Early last Sunday morning, a magnitude (M)4.5 earthquake along with subsequent aftershocks struck Baja California, Mexico. It was felt in East County and as far north as Oceanside.
Although we experience these temblors often, it is beneficial to know what to do if we find ourselves inside a building while at work, enjoying a meal at a restaurant, taking in the latest blockbuster movie at the theatre, or cheering on our favorite team in the stadium.
February 1, 2010 – An earthquake measuring 4.4 on the Richter Scale struck off the Baja California coast at 6:19 a.m. The quake’s epicenter was 41 miles southwest of Imperial Beach, at a depth of four miles under the ocean floor, the U.S. Geological Service reports. It was felt throughout San Diego County, including East County, though no reports of damage have been received.