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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.

Sources

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Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
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.

Recorded event

Issuance of the 7th Report on the Kumamoto Earthquake

The meteorological agency released the 7th report detailing the overview and points of caution regarding the Kumamoto Earthquake.

Read context

This report provided the initial set of official updates on the earthquake's status and necessary precautions for the public.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Recorded event

Issuance of the 8th Report on the Kumamoto Earthquake

The meteorological agency published the 8th report, outlining the current overview and necessary precautions concerning the Kumamoto Earthquake.

Read context

This update followed the previous report, offering further official information on the earthquake's progression and safety considerations.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Recorded event

Issuance of the 9th Report on the Kumamoto Earthquake

The meteorological agency released the 9th report, presenting the latest overview and points of caution related to the Kumamoto Earthquake.

Read context

This report served as a subsequent official communication, providing updated information on the seismic event's status.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Recorded event

Issuance of the 10th Report on the Kumamoto Earthquake

The meteorological agency issued the 10th report, detailing the current overview and necessary precautions for the Kumamoto Earthquake.

Read context

This marked another scheduled update, continuing the official documentation of the earthquake's status and related advisories.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
Recorded event

Issuance of the 11th Report on the Kumamoto Earthquake

The meteorological agency released the 11th report, providing the latest overview and points of caution regarding the Kumamoto Earthquake.

Read context

This final documented event in the sequence provided the most recent official status update available from the agency.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Japan Meteorological AgencyPrimary record

Japan Meteorological Agency source record

www.jma.go.jp

Primary source. Original source-linked synthesis. Separate documents from this publisher are not independent corroboration.

Published: Publication date not provided
Source checked: 9/20/2026
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.