The Japan Meteorological Agency (JMA) issued a tsunami forecast for the sea adjacent to Yonagunijima Island, Japan, after a magnitude 6.0 event. The official assessment indicates possible slight sea-level changes; the record is marked WARNING (津波警報).
Key data
What happened
The event occurred on September 30, 2026, at 05:00 UTC, in the sea adjacent to Yonagunijima Island, Japan. The verified magnitude is 6.0 and the depth is 10 kilometers.
JMA reported a tsunami forecast involving possible slight sea-level changes. The available official information does not specify other effects or additional areas.
Refer to JMA and competent local authorities for any official instructions.
Official status and monitoring
JMA issued a tsunami forecast for slight sea-level changes; the verified record is marked WARNING (津波警報).
Event location
Event timeline
- Sep 30, 2026 14:00:00 · Asia/Tokyo — Event local time reported for the affected area.
Information for the public
Follow the instructions issued by the competent authorities in your area. EarthSentra will update this page when the monitored official sources revise the event.
Official sources
Japan Meteorological Agency (JMA): View the original official bulletin or event record.
Preliminary parameters may be revised by the issuing authority as new data becomes available.
