What Is a Tsunami?
Underwater earthquakes or volcanic eruptions often cause tsunamis. As waves approach shallow coastal waters, they grow in height and strength.
Despite being popularly referred to as “tidal waves,” they are unrelated to tides and should be approached with extreme caution.
Learn more about tsunamis here.
Understanding Tsunami Alert Levels
According to the National Weather Service:
- Tsunami Warning: Widespread flooding expected or occurring. Take immediate action.
- Tsunami Advisory: Dangerous waves and currents likely. Avoid beaches and harbors.
- Tsunami Watch: Earthquake detected, tsunami possible. Stay alert.
- Tsunami Information Statement: No tsunami expected. Remain informed.
“Even a small tsunami can sweep people off their feet or damage boats and harbors,” warns the NWS.
Follow the National Tsunami Warning Center, NOAA, and BBC Live Updates for the latest developments as tsunami activity continues.