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Progress Reports on the Kumamoto Earthquake

This timeline documents the sequential release of official reports by the meteorological agency regarding the Kumamoto Earthquake. Each report provides updates on the seismic activity and relevant advisories. These periodic updates are crucial for tracking the evolving understanding of the earthquake's characteristics and associated risks over time.

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Reviewed 9/20/2026

This timeline covers official announcements from the meteorological agency concerning the Kumamoto Earthquake from August 4, 2026, through September 1, 2026. The scope is limited to the published reports and does not include independent analysis or subsequent events.

Dates without a time use the local date of the event.

From the beginning

Through 9/1/2026

This timeline covers official announcements from the meteorological agency concerning the Kumamoto Earthquake from August 4, 2026, through September 1, 2026. The scope is limited to the published reports and does not include independent analysis or subsequent events.