If you are in a coastal area and experience a strong earthquake, follow these immediate steps from the National Weather Service : Feel: Strong or long-lasting ground shaking [18, 20].
This event resulted in an estimated 558 deaths and over 12,000 injuries [30]. Tsunami Safety: What to Know Tsunami
Go to high ground or as far inland as possible; do not wait for official sirens if you notice natural signs [5.6, 13]. If you are in a coastal area and
For real-time monitoring, you can check the U.S. Tsunami Warning Centers or the Japan Meteorological Agency . 13]. For real-time monitoring
A powerful struck off the northern coast of Japan on April 20, 2026 [34, 35].