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. $$