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Guide

Tsunami: what to do on the Georgia coast

Checked October 8, 2026 against the National Tsunami Warning Center, the National Weather Service, the National Hurricane Center, NOAA’s National Centers for Environmental Information, the U.S. Geological Survey, and the county alert pages linked below.

The Tsunami tile repeats what the National Tsunami Warning Center has said. A tsunami on this coast is rare, and this page says plainly what is and is not known about one, what each alert level means, how to get your county’s alerts, and why the water that usually does the harm here comes from a hurricane instead.

If the ocean does something strange, go to high ground or inland now. The National Weather Service’s natural warnings: a strong or long earthquake; the sea rising like “a fast-rising flood or a wall of water”, or draining away to show the bottom; or a loud roar from the water. Any of those means a tsunami “could arrive within minutes.” Do not wait for an official warning, a phone alert or this website.

Who warns this coast

The National Tsunami Warning Center in Palmer, Alaska, issues tsunami messages for this coast. NOAA gives its area as “coastlines along the continental United States, Alaska, and Canada”, and that includes the Atlantic. Its first messages are built from the earthquake’s location, depth and magnitude, often before any wave has been measured, and they are updated, upgraded or cancelled as more information comes in. On the board, a message naming Chatham, Bryan, Liberty or McIntosh County, or the coastal waters off Savannah, reaches the Savannah board; one naming Glynn or Camden County, or the waters south of Altamaha Sound, reaches the Golden Isles board.

What is actually known about the Atlantic

The U.S. Geological Survey’s summary is short: tsunamis on the Atlantic and Gulf coasts “are rare, but the risks associated with these natural hazards are high.” The source its project studies most is not an earthquake fault off this coast but an underwater landslide on the continental slope, and earthquakes far away, on the Caribbean plate boundary or across the ocean, which can send a wave the whole width of the Atlantic.

The record is thin. NOAA’s historical tsunami database, searched for Georgia, lists no entries: no tsunami and no reading of one anywhere on this coast. Nothing in that record is a warning to wait for, which is why the sea’s own signs above come first.

What the alert levels mean

In the warning centre’s own definitions and recommended actions:

Getting an official alert

Wireless Emergency Alerts come to a capable phone with nothing to sign up for — the weather service’s words are “No signup is required!” — and it sends them for tsunami warnings, hurricanes and storm surge. They are short. The longer local messages come from county systems, and those you have to register for.

The county sign-ups (read October 8, 2026, each from the county’s own page):

If you are not sure which system covers your address, ask your county’s emergency management agency.

The water that usually does the harm here

On this coast the dangerous rise in the sea is almost always storm surge from a tropical storm or hurricane, and the Georgia coast’s wide marsh and seven-foot tide make the timing matter: a surge on a high tide stands that much higher. The National Hurricane Center calls storm surge “currently the leading cause of fatalities from hurricanes”. That is the Weather tile’s job and the weather service’s storm surge and hurricane warnings’, not this tile’s. Before a storm, the county emergency management office is the one that orders evacuations and names the routes and shelters; Camden County keeps its evacuation routes, maps and hurricane registry on the same page as its alerts.

Sources