Tsunami advisory in effect for US west coast after volcanic eruption


A tsunami advisory is in effect for the west coast of the United States after a volcano erupted in the Pacific. “A tsunami has been confirmed and some impacts are expected,” the National Weather Service’s National Tsunami Warning Center said Saturday.

A tsunami advisory is in effect for the following areas, according to the warning center:

  • The California coast, from the California-Mexico border to the Oregon-California border, including San Francisco Bay.
  • The Oregon Coast from the Oregon-California border to the Oregon-Washington border, including the Columbia River estuary coast.
  • The outer Washington State coast from the Oregon-Washington border to Slip Point, the Columbia River estuary coast and the Juan de Fuca Strait coast.
  • North Coast of British Columbia and Haida Gwaii, Central Coast and Northeast Vancouver Island, Outer West Coast of Vancouver Island, Strait of Juan de Fuca Coast.
  • The inner and outer coast of Southeast Alaska from the BC-Alaska border to Cape Fairweather, Alaska.
  • Southern Alaska and Alaska Peninsula: Pacific coasts from Cape Fairweather, Alaska to Unimak Pass, Alaska.
  • Aleutian Islands: Unimak Pass, Alaska, to Attu, Alaska, including the Pribilof Islands.
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An advisory has also been issued for Hawaii by the Pacific Tsunami Warning Center.

“A tsunami is currently being observed by all-island emergency management,” said the the center tweeted. “We are relieved that no damage was reported and minor flooding occurred across all islands.”

The advisories were issued after an underwater volcano erupted on Saturday near the Pacific nation of Tonga. A tsunami warning was in effect for the entire archipelago, according to the Tonga Meteorological Service, and waves of 2.6 feet were detected, according to data from the Pacific Tsunami Warning Center, according to the The Singapore Time.

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In the United States, the National Tsunami Warning Center said high waves and strong currents were possible in areas subject to a tsunami advisory. “Some impacts may continue for several hours or even days after the first wave arrives,” the center said.

Subsequent waves can be larger than any initial wave, and “each wave can last anywhere from 5 to 45 minutes as a wave encroaches and recedes,” according to the warning center.

Signs of a tsunami include strong currents, a receding or rapidly receding shoreline, and unusual waves and sounds. “Tsunami can appear as water moving rapidly out to sea, a gentle rising tide like a flood without a breaking wave, like a series of breaking waves, or a foamy wall of water,” the National Center said. tsunami warning.

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The center said the advisory is in effect for the entire Alaskan coastline and any waves hitting the state are expected to primarily impact south-facing coastlines.

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The post-tsunami advisory in effect for the West Coast of the United States after the volcanic eruption appeared first on TSTIME News.


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