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- (09-18) 18:57 PDT MAMMOTH LAKES, Calif. (AP)
- A swarm of earthquakes -- one a magnitude-5.5 -- jolted a remote, sparsely populated area along the eastern Sierra Nevada on Saturday, authorities said. A Mono County sheriff´s dispatcher said there were no immediate reports of any injuries or damages from the temblors centered along the California-Nevada line about 30 miles northeast of Mammoth Lakes. David Oppenheimer, a seismologist for the U.S. Geological Survey in Menlo Park, said most of the 70 quakes in the sequence that began 12:02 a.m. Saturday were magnitude-2 or less. The magnitude-5.5 temblor that struck at 4:02 p.m. was followed by a magnitude-5.4 quake at 4:43 p.m., he said. The moderate quakes were the biggest in the swarm.
- I live in Tom´s Place and my husband was called out [Sep 18] to an emergency firemans meeting about an hour and a half ago. I am worried, The ground feels like it is moving non stop now. ... My husband just came home. We are leaving. They are contemplating a manditory evacuation for the entire area and whatever was said he isn´t waiting. We are headed for family in Flagstaff. I have to go.
USGS Emergency Response Bulletin For Immediate Release Long Valley Caldera and Mono-Inyo Craters Region, California The CURRENT CONDITION has been downgraded to ORANGE (WARNING) Full and calldown and EVENT RESPONSE3 (if not already in place under YELLOW) An earthquake swarm located near the California-Nevada border (~18 miles east of Mono Lake) began with a magnitude M=2.3 earthquake at 12:02 AM on the 18th. As of this update, the swarm has included some 19 earthquakes. The two largest were M=4.0 and M=4.1 earthquakes at 12:07 and 12:08 AM, respectively. M=3.0 and 3.6 earthquakes occurred at 4:28 AM and 5:39 AM, respectively. Accelerating intense unrest: eruption likely within hours to days. If you reside in the affected area you are urged to implement your Level Orange emergency response plan immediately. USGS UDI CHARLES
Last nite [Sep 18] before I went to bed I had watch the quake swarm grow from like 70 some quakes into a little over 200. I get up bright and early [Sep 19] there are over 600+ quakes listed.