After today's 5.9 earthquake shook the east coast, we received a mildly alarming news release from L.A. County entitled, "COUNTY RESIDENTS ENCOURAGED TO BE PREPARED FOR NEXT BIG ONE." Ok, Angelenos. Prepare. But how? more ›

Hey LBCers? Did you feel the earth move under your feet a few minutes ago? A 3.2 magnitude earthquake hit 2 miles SSE of Long Beach (that's 20 miles SSE of the L.A. Civic Center) at 2:45 this afternoon, according to the USGS. more ›

A minor 3.8 magnitude earthquake struck Long Beach Friday at 9:06 a.m., according to the USGS. People reported feeling it as far as Riverside, Orange County and the Antelope Valley. Per the Long Beach Post on Twitter, the quake was centered around the traffic circle in city's Park Estates area. As always, every little earthquake should be a reminder to get prepared for when a large strikes. more ›

For the third year in a row, California will hold a statewide earthquake drill. An estimated 7.7 million people are taking part, and organizers behind the Great California ShakeOut are hoping for more (yes, you can still register, or just do it on your own without registering). Their message may be lifesaying, yet simple -- "drop, cover and hold on" -- but it's something that isn't necessarily engrained in the minds of Californians (natives and newcomers alike) such as "stop, drop and roll." more ›

An earthquake with a magnitude of 5.4 (previously 5.9, later downgraded) jolted the Borrego Springs area at 4:53 p.m. today. It was widely felt across Southern California, some in the San Diego County area reporting it as a quick jolt and others in Los Angeles as a long deep roll. It was even felt in Las Vegas. more ›

An earthquake with the preliminary magnitude of 5.9 (it was later downgraded to a 5.7) struck the California-Mexico border tonight. Originating 5 miles southeast of Ocotillo, CA at 9:26 p.m., it was felt widely across the Southland and is in the same region as the epicenter of the large Mexicali 7.2 quake on Easter Sunday. more ›

The USGS is reporting several small aftershocks in the Southern California desert following two moderate quakes that struck last night around 8 p.m. "Those temblors were followed by more than three dozen smaller earthquakes, which have continued well into Sunday morning," reports LA Now. The quakes are occurring in the Borrego Springs area; the initial two quakes were felt from San Diego to Los Angeles, however few people report feeling the many aftershocks, and there have been no reports of injuries or damage. more ›

[Update: Click here if you're looking for information about the Monday, June 14th 5.9 quake. The below info is from a quake on Saturday, June 12th] more ›

That's twice in a day (but honestly, there's nothing unusual about this). A small 3.7 magnitude earthquake struck the Santa Monica Bay at 4:59 p.m., according to the USGS. It was followed two smaller ones nearby: a 1.9 quake at 5:13 p.m. and a 2.8 at 5:17 p.m. Earlier, a 3.6 rattled the same area at 2:17 a.m. Did you feel it? more ›

A small earthquake, described by some as a "quick jolt," occurred just a few miles off shore of the South Bay this morning. The 3.6 magnitude shaker struck at 2:17 a.m. 3 miles from Manhattan Beach and Hermosa Beach, according to the USGS. It only took a few minutes before a 1,000 tweets blew by. "Nothing like going to bed and having mother nature rock you to sleep with an earthquake," said softpipes. Up here in the Valley, nothing was felt at LAist's Studio City headquarters. Some reported feeling it as far as Pomona, Simi Valley and Irvine. Did you feel it? more ›

A 3.0-magnitude earthquake rumbled through Los Angeles early this morning. The quake, centered in Baldwin Hills, struck at 4:33 this morning. more ›

A 3.9 earthquake struck outside the Malibu area between Leo Carillo State Beach and Port Hueneme at 8:19 p.m. The U.S. Geogolical Survey considers a quake with this magnitude minor. As LAist reader Doran B. on Twitter noted, "Below 4 on the Richter scale, it's difficult for me to distinguish between an earthquake and indigestion." more ›

For the first time in 16 years, the California Geological Survey has released an updated state map showing all the surface fault lines, including 50 new ones. Available online, making it the first digital release of such a map, this fourth-ever collection of fault information is aimed to help "policymakers, planners, geologists, the mineral industry and even the insurance industry," according to the OC Register, and "will hopefully be used to enhance earthquake preparedness," notes the LA Times. more ›

Those who are already members of the Community Emergency Response Team (CERT) should know this--"the big one" will likely be preceded by a biggish one--but it's a fact worth repeating over and over and over again. "I would expect some aftershocks with a 4.4 quake," USGS seismologist Bob Dollar tells Sciencedude Gary Robbins at the OC Register about this morning's "light" 4.4 quake at 4:04 a.m. "There’s still a 5 percent probability that we’ll have a larger event within a day, and a 10 percent probability of something in the 3.0 range within a week.” In any case, and as always, every no-big-deal earthquake should be a reminder to get prepared (here's the LAFD .pdf Handbook). more ›

Did this one wake you out of bed? If Twitter is any indicator, yes, it woke up hundreds of thousands of Angelenos this morning. A 4.4 earthquake struck Pico Rivera, about 11 miles from downtown L.A., at 4:04 a.m., according to the United States Geological Survey Earthquake Hazards Program. This size quake is categorized as "light." There have been no immediate reports of injuries or damage. more ›

Microquakes have been shaking the Coso Junction area of Eastern Central California all week, but it wasn't until tonight when more noticeable ones struck. A light 4.1 earthquake struck at 10:22 p.m., followed by two minor shakers--a 3.8 at 11:10 p.m. and a 3.4 at 11:21 p.m. more ›

In what appears to be an aftershock to the 6.5 quake in January, a 6.0 magnitude earthquake struck off the coast of Eureka, Ferndale and other Northern California coastal cities at 12:20 p.m. today. The January 9th quake caused quake some damage, but no injuries. As always, big earthquakes are good reminders to prepare for when one happens here. more ›

Worthy of Tweet of the Day status. Via @RedCross: "We are now confirming you have donated $5 million to Red Cross earthquake relief efforts in #Haiti by texting "haiti" to 90999. Amazing." Earlier Today: LA and OC Search & Rescue Teams Heading to Haiti and a fundraiser in Echo Park tonight. more ›

Just three hours after the large 7.0 magnitude earthquake in Haiti just before 2 p.m. PST, Los Angeles County Fire Department personnel are already mobilizing in case they are needed to fly out and offer aid. The 72-member team, made up of Urban Search and Rescue specialists, is referred to as California Task Force 2 (CA-TF2). more ›

On Saturday night there was a 6.5 magnitude earthquake off the coast of Northern California. Today at 1:53 p.m. PST there was a 7.0 magnitude quake in Haiti. more ›

It's been shaky down at the border with the biggest earthquake, a 5.8 magnitude one, occurring last week. The LA Times today notes that the region down at the border continues to shake, meaning only one thing, use of phrase "earthquake swarm." We've seen swarms before in 2009: One in Inyo County in early October and the most notable in March around the Salton Sea. more ›

It's been a shaky day. The Death Valley area had a nice 3.6 earthquake earlier this morning, but the U.S.-Mexico border takes the cake. A 5.8 earthquake struck at 10:48 a.m. on the Mexico side some 20 miles from Mexicali in Baja Mexico and Calexico in California. It's been followed by various aftershocks: a 4.9 at 10:53 a.m., a 4.0 at 11 a.m., a 3.4 at 11:04 a.m., a 3.0 at 11:12 a.m. and a 2.7 microquake at 11:17 a.m. We've seen no reports of damage or casualties yet, but "buildings briefly swayed in San Diego"--about 100 miles away--reported The Desert Sun. more ›

California's earthquake warning system is getting a much needed upgrade with new monitors currently being installed, according to the LA Times. A five-second warning may not seem like a lot, but it could be enough when a major quake erupts outside an urban area: "Those precious seconds could allow emergency officials to shut off gas and water lines, raise fire station doors, stop subway operations and possibly even warn the public of shaking to come." Maybe we can put Los Angeles' antique air sirens back to work now? more ›

A 1.5 magnitude earthquake shook in the Santa Susana Mountains, north of Granada Hills, Porter Ranch and Chatsworth, this morning. The 9:41 a.m. shaker is considered a microquake and is usually only felt by those extremely close to the epicenter. Another quake, measuring the same size, was reported in Claremont last night at 7:08 p.m. more ›

More little quakes to get you thinking about being prepared. A minor 3.1 magnitude earthquake struck near Trona, some 30 miles from Ridgecrest, in San Bernardino County at 4:59 p.m. Thus far, there have been no reports of damge or injuries and one reported aftershock, a 1.4 shaker, less than 10 minutes later. Earlier at 2:14 p.m., a 2.6 magnitude microquake struck off the coast of Orange County, near Laguna Beach and Dana Point. There was also a 2.2 quake near Anaheim last night and a 1.4 in Los Angeles this morning. more ›

Five minor earthquakes rattled the southern end of the Salton Sea this afternoon; this, after a series of quakes in the last few days. The mini quake swarm, of sorts, began 2:25 p.m. and continued through 3:07 p.m. near Obsidian Butte. Three of them were over 3.0 magnitude. Nothing to freak out about, but always a good reminder to be prepared. Also: A 2.1 microquake was felt off the coast of Santa Barbara and Ventura at 2:47 p.m. more ›

Although the big news is the 6.8 magnitude earthquake that rocked the coast of British Columbia at 7:30 a.m., the Inland Empire received another minor quake as well. Likely an aftershock, a minor 3.0 shaker struck at 5:21 a.m. in the same spot as yesterday's light 4.6 quake. It was located in Searles Valley, some 23 miles southeast of Ridgecrest. It is the fifth earthquake 3.0 or stronger in the last few days. more ›

We may have not been feeling them directly here in Los Angeles, but the ground is shaking somewhat east of us. Since Saturday evening, three earthquakes have rattled the Inland Empire, first in Riverside County (3.3), again this morning east of Temecula (3.6) and then this afternoon more northward in San Bernardino County (4.6). Yesterday, there was a 4.3 magnitude quake near San Nicolas Island, which is one of two Channel Islands controlled by the Military. 3.0 and 4.0 magnitude quakes are categorized as "minor" and "light," respectively. more ›

Yes, you're not crazy, there was an earthquake, albeit minor, in Riverside County. The 3.3 magnitude quake struck at 11:54 p.m., 5 miles west of Beaumont, according to the United States Geological Survey. About the above map: Withs some funding from the federal stimulus package, the USGS is exploring the world's fastest (and unofficial) newswire, Twitter. more ›

Another in a series of quake swarm events struck near Keeler, CA tonight during the 6 p.m. hour. 30 minor to moderate earthquakes struck between 6:09 and 7:10 p.m., according to the United States Geological Survey. The largest shaker was measured at magnitude 5.2 at 6:15 p.m. It was preceded by increasingly larger earthquakes at 3.1, 4.7 and 4.9. more ›