Current Tsunami Warning Status for San Diego, CA
As of the latest update, there is no active tsunami warning for San Diego, California. The National Weather Service (NWS) announced the cancellation of the brief warning at around 5:20 a.m. Wednesday morning, confirming that coastal waters are safe and no hazardous waves are expected.
How Tsunami Warnings Are Issued
The United States National Weather Service, in coordination with the U.S. Geological Survey (USGS) and the Pacific Tsunami Warning Center, monitors earthquakes and sea‑level data in real time. When an event meets specific criteria—such as a large offshore magnitude, shallow depth, or a sudden seafloor displacement—a tsunami advisory or warning may be issued for affected coastlines.
Key factors that trigger a warning
- Magnitude: Earthquakes of magnitude 7.0 or greater are closely evaluated.
- Location: Events occurring within a few hundred kilometers of the coast pose the greatest risk.
- Depth: Shallow earthquakes (typically less than 30 km deep) are more likely to generate tsunamis.
- Seafloor movement:
