We have recorded and located 306 earthquakes in the last week. Click here to see a summary and map .
A quake was fairly widely felt from Palm Springs to Escondido early this afternoon. The time was 2:30 pm, and the magnitude was M3.4. Some of the places where people reported feeling the quake were: Palm Springs, Cathedral City, Banning, Idyllwild, Hemet, Pine Cove, Temecula, and Escondido.
Three small, but possibly felt, quakes have occurred so far this weekend. The first was at 9:43 pm last night, 5 miles west of Grapevine (at the bottom of the Grapevine Grade on the I5). The magnitude was M2.8.
Another M2.8 occurred later last night, at 10:39 pm. That quake was located in Mexico, 29 miles southeast of Calexico.
A M2.7 occurred this afternoon at 4:25 pm. This quake was located in the Sierras, 25 miles east-southeast of Porterville. It was felt in Springville.
We have recorded and located 340 earthquakes in the last week. Click here to see a summary and map .
A very small quake (M2.3) was felt late this morning in Acton. The epicenter was 3 miles west-southwest of Palmdale, and the time of the quake was 11:23 am.
It seems that the July Coso swarm is not entirely over. At 4:25 am this morning, there was a M3.1, located 3 miles east of Coso Junction. We have no 'felt' reports so far.
At 12:50 am this morning, there was a M2.9 quake 9 miles south-southwest of Calexico (in Mexico). Also, at 6:06 am, there was a M3.1 Hector Mines aftershock, located 32 miles north of Joshua Tree. Neither was, as far as we know, felt.
At 12:34 am today, a small quake was felt in the Inland Empire. The epicenter was 1 mile southeast of Loma Linda, and the magnitude was 3.1. We have "felt" reports from Riverside, Moreno Valley, and Rancho Cucamonga.
There were also two quakes of interest yesterday. A M2.8 occurred at 6:12 am, 5 miles southeast of Coso Junction. Then, at 6:26 pm, there was a M3.2 Hector Mines aftershock, located 34 miles north of Joshua Tree.
At 3:06pm yesterday we had a M4.2 aftershock to the M4.4 earthquake that occurred earlier near San Clemente Island. It's been reported that the aftershock was felt weakly along the neighboring islands and the shoreside communities of Los Angeles, Orange and San Diego counties. Like its precursor it too shows strike-slip, horizontal movement. In December of 1951 there was a M5.9 in the general region to yesterday's earthquakes so it's not surprising to have earthquakes offshore. Probably quite of few people of Orange and San Diego county remember the M5.4 Oceanside earthquake in July of 1986 which occurred 32 miles offshore from the city of Oceanside.
We have recorded and located 433 earthquakes in the last week. Click here to see a summary and map .
There have been two significant aftershocks to this morning's San Clemente Island quake: a M3.2 at 1:04 pm and a M3.1 at 1:37 pm. Both occurred in the same area, south-southeast of San Clemente Island.
Add Santa Monica, Anaheim, Newport Beach, Lake Forest, Buena Park, Fountain Valley, La Palma, San Juan Capistrano, San Clemente, Carlsbad, La Jolla, and San Diego to the "felt" list.
The focal mechanism shows strike-slip (horizontal motion of the fault) with a stike consistent with many of our offshore faults, including the nearby San Clemente fault.
A M4.4 quake has just happened offshore, 7 miles south-southeast of San Clemente Island, or 65 miles due west of San Diego. We are currently getting "felt" reports from Irvine, Santa Ana, Brea, Huntington Beach, Mission Viejo, Costa Mesa, Tustin, Orange, Laguna Niguel, Alisa Viejo, and Solano Beach. The time was 11:04 am.
There were a couple of quakes of interest in northern California over the weekend, notably a M5.4 at 1:19 pm on Friday, 9 miles west of Portola. This quake was widely felt as far as Sacramento and Reno.
At 7:06 am this morning, a M3.8 occurred near the coast 16 miles north-northwest of San Simeon. It was felt in the epicentral area.
We have recorded and located 607 earthquakes in the last week. Click here to see a summary and map .
At 9:52 am this morning, a M3.5 quake occurred in northern Baja, 47 miles southeast of San Ysidro. The quake was felt in the U.S. at San Diego, Ramona, and Alpine.
At 12:05 pm on Saturday, there was a M3.2 earthquake at a different location: 6 miles north of the town of Lake Isabella. It was felt in Lake Isabella, Kernville, Woffard Heights, and Fresno.
At 10:35 am today, a M2.9 quake occurred 4 miles southeast of Ridgecrest. Due to its size, it was probably felt in Ridgecrest, but we have no reports so far. Note that this quake is not part of the ongoing swarm; its epicenter was about 37 miles south-southeast of Coso Junction.
We have recorded and located 774 earthquakes in the last week. Click here to see a summary and map .
At 9:21 am this morning, there was a M3.9 (according to University of Nevada at Reno) quake in the Eureka Valley/Saline Valley area, 25 miles east of Big Pine. Big Pine is in the Owens Valley, southeast of Bishop. We have not 'felt' reports so far on the quake.
There has been another Coso swarm member: a M3.0 at 2:31 pm today, located 3 miles east-northeast of Coso Junction.
