Volcano Watch: Tsunamis pose a major threat to Hawaii: 24/7 monitoring at PTWC
By JONATHAN R. WEISS NOAA/NWS/Pacific
Tsunami Warning Center | Sunday, September 24, 2023, 12:05 a.m.
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Wreckage of a clubhouse on Kamehameha Avenue in Hilo caused by a tsunami generated by the April 1, 1946, earthquake in the Aleutian Islands. (Courtesy photo/U.S. Army Corps of Engineers)
Aftermath of the 1960 Chilean tsunami in Hilo, Hawaii, where the tsunami caused 61 deaths. (Courtesy photo/Pacific Tsunami Museum)
The locations, years, and maximum reported Hawaii runups (i.e., wave heights) for significant Pacific-wide tsunamis. Red-orange-yellow contours indicate the travel time to Honolulu for a tsunami with different origins. For example, an earthquake generated locally on the southeast coast of the Island of Hawaii would arrive in Honolulu in less than an hour. Waves generated by a Japan earthquake might take 8 hours to reach Honolulu. Tsunami waves from the Aleutians would arrive in Honolulu in about 5 hours. The inset map in the upper right corner shows maximum runups for waves generated by the 1946 Aleutian Islands earthquake (meters/feet). (Courtesy/photo)