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Tsunami Advisory

A TSUNAMI ADVISORY is in effect for the entire US Pacific seaboard and Hawaii after a massive undersea volcanic eruption triggered a 7.4 magnitude earthquake near Tonga.

"A tsunami capable of producing strong currents that may be hazardous to swimmers, boats, and coastal structures is expected," the National Weather Service said in a flash bulletin. "If you are located in this coastal area, move off the beach and out of harbors and marinas. Do not go to the coast to watch the tsunami. Be alert to instructions from your local emergency officials," the agency warned.

photos courtesy Tonga Geological Services, Government of Tonga...

Geologists on the site. Oversighting Hunga Ha'apai in the forefront and Hunga Tonga 'o the left. The plumes up to 20km above sea level.


  1. Kirk Vodopals January 15, 2022

    Mother nature at her best

  2. Douglas Coulter January 15, 2022

    The explosion at Krakatoa in the 6th century changed world climates and redirected history. Catastrophe that caused two years without summer.

    • John McCowen January 16, 2022

      Douglas Coulter: Krakatoa was cataclysmic, but it was in 1883.

  3. Rye N Flint January 16, 2022

    tsunami advisory means: a dangerous wave is on the way. Strong and unusual currents are expected along the coast, and in bays, marinas, and harbors. Move to high ground and away from the shore. (Contributed)
    By CHRIS PUGH | |
    PUBLISHED: January 15, 2022 at 9:20 a.m. | UPDATED: January 15, 2022 at 9:23 a.m.
    The National Weather Service has issued a tsunami warning for the entire California coast due to an underwater volcano eruption that caused a tsunami to hit the South Pacific country of Tonga. A tsunami capable of producing strong currents hazardous to swimmers, boats, and coastal structures is expected.

    The NWS issued a tsunami advisory early Saturday morning starting, “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.” Citizens are advised to “stay away from beaches and low lying coastal areas, and to avoid boating and fishing for the next serval hours.”

    According to the NWS, waves may reach heights of 1 to 3 feet, and “strong rip currents and coastal flooding” are expected.

    The NWS warns that the first surge may not be the largest and that a more significant surge could arrive much later than the first. High tide is expected to occur at around 9:30 a.m. along the Northwest California coast. Even though the initial wave was expected from 7:30 a.m. to 8 a.m., additional waves and strong currents will continue.

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