SAN FRANCISCO (CBS SF) — A large earthquake measuring 7.5 magnitude struck Alaska on Monday, prompting a tsunami warning for South Alaska and the Alaska Peninsula.
The U.S. Geological Survey said the earthquake struck at 1:54 p.m. PT about 56 miles southeast of Sand Hill and 570 miles southwest of Anchorage. The quake was followed by at least five aftershocks with magnitudes of 5.8. 5.7, 5.2, 5.5 and 5.9, along with several other smaller aftershocks.READ MORE: Downsized But Not Out, Dreamforce Conference Set to Boost Business in San Francisco
The quake was originally measured at 7.4 magnitude before the USGS upgraded it to 7.5.
The tsunami warning was in effect for Pacific coasts from Kennedy Entrance, Alaska to Unimak Pass, Alaska. The National Tsunami Warning Center said the tsunami danger was still being evaluated for other U.S. and Canadian Pacific coast.
Just after 3 p.m. PT, the California Office of Emergency Services tweeted that there was no tsunami threat to California at this time.READ MORE: Flames Reach Ancient Sequoias; Crews in Pitched Battle to Save Giant Forest Grove
MORE NEWS: PG&E Says Light Rain After Long Drought Led to Lights-Out Across Bay Area
— Cal OES (@Cal_OES) October 19, 2020
There was no immediate word of any damage or injuries.