WEPA41 PAAQ 181907 TSUWCA BULLETIN Tsunami Message Number 1 NWS National Tsunami Warning Center Palmer AK 1207 PM PDT Thu Sep 18 2025 AKZ791-182037- /O.NEW.PAAQ.TS.Y.0019.250918T1907Z-000000T0000Z/ Coastal areas between and including Amchitka Pass, Alaska (125 miles W of Adak) to Attu, Alaska 1207 PM PDT Thu Sep 18 2025 ....A TSUNAMI ADVISORY IS NOW IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF ALASKA FROM AMCHITKA PASS ALASKA, WHICH IS LOCATED 125 MILES W OF ADAK TO ATTU ALASKA... If you are located in this coastal area, move off the beach and out of harbors and marinas. Tsunami advisories mean that a tsunami capable of producing strong currents or waves dangerous to persons in or very near the water is expected or is already occurring. Areas in the advisory should not expect widespread inundation. Tsunamis are a series of waves dangerous many hours after initial arrival time. The first wave may not be the largest. At 1158 AM Pacific Daylight Time on September 18 an earthquake with preliminary magnitude 7.8 occurred 90 miles east of Petropavlovsk Kamchatka. Estimated tsunami start times for selected sites are; Shemya Alaska 1220 PM. AKDT. September 18. The tsunami advisory will remain in effect until further notice. Refer to the internet site tsunami.gov for more information. $$