P2PQuake detection
Shows increased “I felt it” activity within a region. It is not Shindo and does not locate individual people.
See where others are reporting shaking while you look for official information. Follow P2PQuake signals and JISHINDESU felt reports on a map that updates automatically.
Community activity is not an official Shindo measurement, Earthquake Early Warning or forecast. Use JMA and local-authority information for safety decisions.
No reports does not prove that no earthquake occurred. Check official information as well.
Move away from windows and unstable objects. Near the coast, evacuate after strong or prolonged shaking without waiting for this page or an app update.
The two community sources remain separate. Once JMA publishes a matching report, the page links to the confirmed earthquake details.
Shows increased “I felt it” activity within a region. It is not Shindo and does not locate individual people.
People’s experiences are grouped into hexagonal areas. Colours describe how shaking felt, not measured Shindo. Exact user locations are not displayed.
When a match is found, open the earthquake report for the hypocentre, magnitude and station observations. Official data may be revised in later reports.
Add a felt report and choose to be notified if it is matched to official JMA information. Keep track of station observations near your home, family or destination, too.

Community reports can arrive before official information. Reports alone do not confirm an earthquake. Keep this page open to follow new submissions and check the latest JMA reports. Do not wait for an update when you need to take action for your safety.
No. The four levels describe subjective experiences: barely felt, noticeable, strong and very strong. Shindo is intensity measured at a station. P2PQuake signals use a separate map symbol and are not Shindo measurements either.
JISHINDESU reports are combined into hexagonal areas. An area appears once the required reporting threshold is reached, so the total may increase before a new area becomes visible. Exact user locations and individual reports are not displayed.
No. The map shows only current community activity available from our sources. An absence of reports does not rule out an earthquake, and older activity disappears from this view. Use the earthquake archive for past events.
Use community shaking reports in the JISHINDESU app. This page lets you follow incoming activity. If the system matches it to a JMA report, a link to the official event details appears in the panel. Not every report will receive a match.