A tsunami advisory has been issued for the US West Coast and Alaska

Tonga Geological Services

(NEW YORK) — The National Tsunami Warning Center issued a tsunami advisory for the entire West Coast and Alaska in the wake of an undersea volcanic eruption near Tonga.

Nearly all coastal areas in California, Oregon, Washington, Southeast Alaska, South Alaska, the Alaskan Peninsula and the Aleutian Islands are under a tsunami advisory. British Columbia is also under advisory.

Japan’s Meteorological Agency issued a tsunami warning for the southern Amami island and Tokara island chain in Kagoshima Prefecture and a tsunami advisory for all coastal areas facing the Pacific Ocean. Tsunami waves as high as 1.2 meters were reported near those islands around 11:30 a.m. eastern time.

A tsunami advisory means that a tsunami could produce strong currents or waves near the coastline. However, a tsunami advisory does not indicate a major tsunami event where water is actively entering coastal communities. In this circumstance, the tsunami is only dangerous to those in the water, or on the immediate beach — like swimmers and boaters.

This is a developing story. Please check back for updates.

ABC News’ Daniel Manzo contributed to this report.

Editor’s note: This story’s headline has been updated to report that a tsunami advisory, not a warning, was issued.

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