Jan 23, 2018 - Science

Tsunami watches and warnings issued for West Coast of U.S. and Canada

Shannon Vavra

All U.S. tsunami watches on the West Coast have been canceled following a 7.9 magnitude earthquake in the Gulf of Alaska early Tuesday morning, although advisories remain for Alaska, The Weather Network reports. Tsunami warnings for British Columbia in Canada have ended, but all clears are not yet issued for some areas.

Why it matters: “The first wave may not be the largest,” per The Weather Channel. Tsunami warnings and watches are frequently upgraded or downgraded as more observations come in.

Kodiak, Alaska reports tide levels rose three feet in a matter of minutes.
Buoys in the Gulf of Alaska early Tuesday morning detected Tsunami activity and The Weather Channel warned residents of Alaska and British Columbia to evacuate to higher ground and farther inland beyond the bounds of tsunami hazard zones.
Earlier estimated times of arrival of the first tsunami waves for different areas:

Alaska

Kodiak 0145 AKST
Elfin Cove 0150 AKST
Seward 0155 AKST
Yakutat 0200 AKST
Sitka 0200 AKST
Valdez 0215 AKST
Cordova 0220 AKST
Sand Point 0220 AKST
Unalaska 0240 AKST
Homer 0250 AKST
Craig 0300 AKST
Cold Bay 0300 AKST
Adak 0305 AKST
Shemya 0345 AKST
Saint Paul 0400 AKST

British Columbia

Langara 0210 AKST
Tofino 0340 AKST

Washington

Neah Bay 0450 PST
Long Beach 0455 PST
Moclips 0500 PST
Westport 0505 PST
Port Angeles 0530 PST
Port Townsend 0555 PST

Oregon

Port Orford 0505 PST
Seaside 0505 PST
Newport 0510 PST
Charleston 0510 PST
Brookings 0515 PST

California

Crescent City 0520 PST
Fort Bragg 0525 PST
Horse Mountain 0525 PST
Monterey 0555 PST
San Francisco 0620 PST
Port San Luis 0620 PST
Santa Barbara 0635 PST
Los Angeles Harb 0650 PST
Newport Beach 0700 PST
Oceanside 0705 PST
La Jolla 0705 PST

Hear the sirens residents of Kodiak, Alaska heard this morning:

Catch up with the latest: U.S. Tsunami Warning System

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