A National Weather Service map showing the red tsunami warning zone as well as the yellow tsunami watch zone, which runs south from Washington to California and also includes Hawaii. Image via NWS.
The U.S. Geological Survey (USGS) has reported a very large earthquake this morning in the Gulf of Alaska. It was originally reported at 8.2 magnitude and has been updated to 7.9 magnitude; both numbers indicate a very powerful quake. The earthquake struck on January 23, 2018 at 9:31 UTC (3:31 a.m. CST; translate to your time zone). It occurred 174 miles (280 km) southeast of Kodiak, Alaska.
The Pacific Tsunami Warning Center (PTWC) has issued tsunami watches or warnings for large portions of the Pacific, including a watch for the U.S. west coast from Washington to California as well as Hawaii, and a tsunami warning for the coast of Alaska and the Canadian province of British Columbia.
The PTWC – which was still in its calculation process when this advisory was issued at 10:17 UTC (4:17 CST) today – said tsunami waves are forecast to be less than one foot (0.3 meters) above the tide level for the coasts of Guam, Hawaii and northwestern Hawaiian Islands, Japan, Johnston Atoll, Mexico, Midway Island, Northern Marianas, Russia, and Wake Island.
This story will be updated.
from EarthSky http://ift.tt/2DYJsC5
A National Weather Service map showing the red tsunami warning zone as well as the yellow tsunami watch zone, which runs south from Washington to California and also includes Hawaii. Image via NWS.
The U.S. Geological Survey (USGS) has reported a very large earthquake this morning in the Gulf of Alaska. It was originally reported at 8.2 magnitude and has been updated to 7.9 magnitude; both numbers indicate a very powerful quake. The earthquake struck on January 23, 2018 at 9:31 UTC (3:31 a.m. CST; translate to your time zone). It occurred 174 miles (280 km) southeast of Kodiak, Alaska.
The Pacific Tsunami Warning Center (PTWC) has issued tsunami watches or warnings for large portions of the Pacific, including a watch for the U.S. west coast from Washington to California as well as Hawaii, and a tsunami warning for the coast of Alaska and the Canadian province of British Columbia.
The PTWC – which was still in its calculation process when this advisory was issued at 10:17 UTC (4:17 CST) today – said tsunami waves are forecast to be less than one foot (0.3 meters) above the tide level for the coasts of Guam, Hawaii and northwestern Hawaiian Islands, Japan, Johnston Atoll, Mexico, Midway Island, Northern Marianas, Russia, and Wake Island.
This story will be updated.
from EarthSky http://ift.tt/2DYJsC5
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