Contact and operator information
Have a question, spotted an error or need to report a technical problem? Contact the JISHINDESU operator directly.
Last updated: 29 August 2026How we can help
You can report an error in an earthquake record, an incorrect place name or translation, or a problem with the map or website. The same address accepts questions about privacy, security, data use, formal requests and cooperation.
Who operates JISHINDESU
JISHINDESU is operated by Marcin Korzeniowski under the trade name CODEVERTURE. JISHINDESU is the name of this service.
The operator's business address is disclosed without undue delay where required by applicable law.
Not an emergency contact
This mailbox is not monitored around the clock and must not be used to report an emergency. For urgent safety information, use official JMA, local-authority and emergency-service communications.
Please do not send sensitive personal information unless it is necessary to handle your request.