Recent Updates
[Notice] System maintenance on Jan 28
The IISEE server will be undergoing maintenance during the period from 5:30 PM to 10:30 PM on Wednes...
Jan 23, 2026
Special page of Eastern Shimane Prefecture Earthquake of January 6, 2026 is posted
Special page of Eastern Shimane Prefecture Earthquake of January 6, 2026 is posted....
Jan 8, 2026
Special page of off the eastern coast of Aomori Prefecture Earthquake of December 8, 2025 is posted
Special page of off the eastern coast of Aomori Prefecture Earthquake of December 8, 2025 is posted...
Dec 9, 2025
Special page of Aso, Kumamoto Prefecture Earthquake on November 25, 2025 is posted
Special page of Aso, Kumamoto Prefecture Earthquake on November 25, 2025 is posted....
Nov 27, 2025
[Notice] scheduled maintenance
Due to scheduled electrical equipment maintenance, this site will be temporarily unavailable from 7:...
Oct 9, 2025
Special page of M 8.8 - Kamchatka Earthquake on July 29, 2025 is posted.
Special page of M 8.8 - Kamchatka Earthquake on July 29, 2025 is posted....
Jul 31, 2025