A staggeringly powerful Magnitude 8.2 earthquake has taken place off the southern coast of Alaska and, according to the US Geological Survey, it has generated a TSUNAMI which is heading toward both the West coast of Canada and the CONUS, and directly at the Hawaiian islands. A TSUNAMI WARNING has been issued by the National Tsunami Warning Center. UPDATE 6:50 AM EST -- COASTAL EVACUATIONS ORDERED IN PARTS OF ALASKA AND CANADA
UPDATE 7:15 AM EST -- RESIDENTS OF SAN FRANCISCO NOW BEING WARNED OF POSSIBLE EVACUATION OVER TSUNAMI
UPDATE 7:20 AM EST -- Quake was very very shallow 25KM DEPTH --lasted 3 minutes. TSUNAMI is heading in every direction in the Pacific
UPDATE 7:28 AM EST -- National Weather Service Broadcasting TSUNAMI WATCH on TV in California coastal cities ! ! !
UPDATE 8:40 AM EST - From NBC News, Tsunami Warnings CANCELLED.
000 WEHW40 PHEB 230943 TSUHWX HIZ001>003-005>009-012>014-016>021-023>026-231143- /O.NEW.PHEB.TS.A.0001.180123T0943Z-000000T0000Z/ BULLETIN TSUNAMI MESSAGE NUMBER 1 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 1143 PM HST MON JAN 22 2018 TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII SUBJECT - TSUNAMI WATCH A TSUNAMI WATCH IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE AT 1143 PM HST. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 1132 PM HST 22 JAN 2018 COORDINATES - 56.0 NORTH 149.2 WEST LOCATION - GULF OF ALASKA MAGNITUDE - 8.0 MOMENT EVALUATION BASED ON ALL AVAILABLE DATA A TSUNAMI MAY HAVE BEEN GENERATED BY THIS EARTHQUAKE THAT COULD BE DESTRUCTIVE ON COASTAL AREAS EVEN FAR FROM THE EPICENTER. AN INVESTIGATION IS UNDERWAY TO DETERMINE IF THERE IS A TSUNAMI THREAT TO HAWAII. IF TSUNAMI WAVES IMPACT HAWAII THE ESTIMATED EARLIEST ARRIVAL OF THE FIRST TSUNAMI WAVE IS 0426 AM HST TUE 23 JAN 2018 FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED. $$
According to the National Data Buoy Center, the earthquake caused a 10 Meter Water Displacement; the earth moved so much that it generated a 30 FOOT wave which is now heading toward Hawaii and the US/CANADA west Coasts.
Data Buoy #46410 off Alaska Coast
It's like the whole north part of the pacific plate shifted, that the top corner went up 10 meters, then down 10 meters, all over the course of 15 seconds. Amazing.
At the same about 40 miles southwest, the shift was only about 2 meters... but imagine along that 400 mile line, the displacement of that much water... That's gonna cause some waves that could travel all day.
Tsunami Buoys throughout the north Pacific Ocean are ALERTING to the incoming wave! ! !
The 17 Second graphic below shows the magnitude of the earthquake and the ALERTING TSUNAMI BUOYS
Here is the Official Tsunami Wave Arrival-time chart from the Pacific Tsunami Warning Center:
“If you are in a coastal area that is at risk, you should move to high ground now and heed further instruction from local authorities,” the warning said.
The agency warned that a tsunami is a “series of waves,” and that the “first wave may not be the largest.”
A #Tsunami Warning has been issued for coastal areas of British Columbia. 8.0 quake off the coast of Alaska. https://t.co/bhBOJKJ7IH It is believed the waves generated may impact low lying areas under 20 metres.— District of Tofino (@TofinoCA) January 23, 2018
#ALASKA #EARTHQUAKE ... reports of an 8.2 magnitude earthquake off the S coast of Alaska; buoy 46410 just northeast of the epicenter has recorded a water displacement of 10 meters (32 feet); #TSUNAMI WARNINGS posted for the S Alaska and W Canadian coastline pic.twitter.com/xmtvsoclMq— NWS Boston (@NWSBoston) January 23, 2018
Residents in Kodiak, Alaska are currently evacuating to higher grounds following tsunami warning. pic.twitter.com/oz0jXPtyBx— BNL NEWS (@BreakingNLive) January 23, 2018
Tsunami Watch for #SF. If you are w/in SF & 3 blocks of the Pacific Coast or w/in 5 blocks of SF Bay, PREPARE TO EVACUATE SO YOU ARE READY IF EVACUATION IS NEEDED. Check on neighbors who may need help. Visit https://t.co/kvgkapMonx to see if you are in the evacuation zone. pic.twitter.com/cq4PILKz8t
Tsunami Watch for #SF. If you are w/in SF & 3 blocks of the Pacific Coast or w/in 5 blocks of SF Bay, PREPARE TO EVACUATE SO YOU ARE READY IF EVACUATION IS NEEDED. Check on neighbors who may need help. Visit https://t.co/kvgkapMonx to see if you are in the evacuation zone. pic.twitter.com/cq4PILKz8t— San Francisco DEM (@SF_emergency) January 23, 2018
Quake was very very shallow, 25KM DEPTH -- lasted 3 minutes
TSUNAMI is heading in every direction in the Pacific
TSUNAMI WATCH BEING BROADCAST ON TV THROUGHOUT CALIFORNIA
TSUNAMI ARRIVAL TIMES FOR ALASKAN COASTAL AREAS
Incoming tsunami - 10 meter waves. If you're on the coast i'd get out now
[link to ntwc.arh.noaa.gov]
Kodiak 0145 AKST Jan 23
Seward 0155 AKST Jan 23
Elfin Cove 0155 AKST Jan 23
Sitka 0200 AKST Jan 23
Yakutat 0205 AKST Jan 23
Valdez 0215 AKST Jan 23
Sand Point 0220 AKST Jan 23
Cordova 0225 AKST Jan 23
Unalaska 0240 AKST Jan 23
Homer 0255 AKST Jan 23
Craig 0300 AKST Jan 23
Cold Bay 0300 AKST Jan 23
Adak 0305 AKST Jan 23
Shemya 0350 AKST Jan 23
Saint Paul 0400 AKST Jan 23
UPDATED TSUNAMI WARNING FROM WARNING CENTER 7:43 AM EST --
WEAK51 PAAQ 231240 TSUAK1 BULLETIN Public Tsunami Message Number 6 NWS National Tsunami Warning Center Palmer AK 340 AM AKST Tue Jan 23 2018 UPDATES ------- * Updated observations ...THE TSUNAMI ADVISORY REMAINS IN EFFECT... Tsunami Advisory in Effect for; * SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from Hinchinbrook Entrance, Alaska (90 miles E of Seward) to Chignik Bay, Alaska For other US and Canadian Pacific coasts in North America, there is no tsunami threat. FORECASTS OF TSUNAMI ACTIVITY ----------------------------- * A tsunami has been generated. The first waves are forecasted to arrive at the following locations and specified times. * Forecast tsunami duration is the approximate length of time which the tsunami may produce dangerous currents and waves. * Forecast max tsunami height is the highest expected water level above the tide. * Forecasts are not provided for sites which have been impacted more than an hour prior to the time of this message. FORECAST FORECAST FORECAST START TSUNAMI MAX TSUNAMI SITE OF TSUNAMI DURATION HEIGHT ---- ---------- -------- ------------- * Alaska Homer 0250 AKST Jan 23 less than 1ft OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED ------------------------------------------ * Observed max tsunami height is the highest recorded water level above the tide level up to the time of this message. TIME OBSERVED MAX SITE OF MEASUREMENT TSUNAMI HEIGHT ---------------------------- ---------------- -------------- Kodiak Alaska 0329 PST Jan 23 0.6ft Seward Alaska 0331 PST Jan 23 0.4ft Old Harbor Alaska 0338 PST Jan 23 0.7ft Sitka Alaska 0318 PST Jan 23 0.4ft Yakutat Alaska 0335 PST Jan 23 0.5ft Langara BC 0330 PST Jan 23 0.4ft PRELIMINARY EARTHQUAKE PARAMETERS --------------------------------- * Magnitude 7.9 * Origin Time 0032 AKST Jan 23 2018 0132 PST Jan 23 2018 0932 UTC Jan 23 2018 * Coordinates 56.0 North 149.1 West * Depth 12 miles * Location 175 miles SE of Kodiak City, Alaska 360 miles S of Anchorage, Alaska RECOMMENDED ACTIONS ------------------- * See message number 5 for recommended actions. IMPACTS ------- * See message number 5 for possible impacts. ADDITIONAL INFORMATION AND NEXT UPDATE -------------------------------------- * Refer to the internet site tsunami.gov for more information. * Pacific coastal residents outside California, Oregon, Washington, British Columbia and Alaska should refer to the Pacific Tsunami Warning Center messages at tsunami.gov. * This message will be updated within 30 minutes. $$
A tsunami watch issued early Tuesday for coastal areas from Washington state to California was canceled nearly three hours after a magnitude 7.9 earthquake struck the Gulf of Alaska and prompted precautionary calls to evacuate.
Tsunami watches were also canceled for the Canadian province of British Columbia and Hawaii, although a tsunami advisory remained in effect for southern Alaska after 3 a.m. local time (7 a.m. ET), according to the National Weather Service's National Tsunami Warning Center.
There were no immediate reports of life-threatening waves or damage to property.
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