Report of activity
Abstract of the 249th meeting of CCEP
The 249th meeting of the Coordinating Committee for Earthquake Prediction (CCEP) was held at the Kanto Regional Survey Department of the GSI on November 27, 2025. And the meeting was onsite and online confference. Firstly, the nationwide monitoring data of the seismic activity was reported. Secondary, the CCEP members discussed the intensive discussion subject "Changing concepts regarding earthquake prediction and forecasting" was explained. * The materials on this site are written in Japanese.
１.Monitoring Crustal Deformation
１.１ General crustal activities
(1) Seismic activities of Japan. p.2 (JMA)
(2) Strain changes in Japanese Islands.
p.3-4 (GSI)
１.２ State of interplate coupling and its change.
(1) Japan trench,Chishima trench.
p.5 (JAMSTEC),
p.6-8 (JMA),
p.9-10 (GSI),
p.11 (JAMSTEC),
(2) Nankai trough and Nansei islands trench.
p.12 (NIED),
p.13-16 ,p.17-19,p.20-22,p.23-27(GSI)
１.３ Others
(1) Seismic activity off the coast of the Tokara Islands near Suwanose-jima (largest earthquake: M4.8 on September 17)
p.28-30 (JMA) ,p.31-36 (GSI)
３.Intensive discussion
Two Years after the 2024 Noto Peninsula Earthquake: Current Understanding and Remaining Challenges
p.38 Convener：Kazutoshi Imanishi (AIST)
-Strong ground motions and fault rupture process of the 2024 Noto-Hanto earthquake of M7.6 Tomotaka Iwata (Prof. Emeritus, Kyoto Univ.) and Kimiyuki Asano (DPRI, Kyoto Univ.)
p.40 Tomotaka Iwata（Kyoto Univ.）
-Perspectives on Long-Term Tectonics and Fault-Drilling in the Noto Peninsula Earthquake
p.41 Makoto Otsubo（Univ. of Tokyo）
-Earthquake swarms’ activity and fluid in the northeastern Noto Peninsula
p.42 Yoshihiro Hiramatsu (Kanazawa Univ.)
-The 2024 Noto Peninsula Earthquake and its preceding events: A Geodetic Approach
p.43 Hiroshi Munekane (GSI)
-Cold Subduction in Central Japan and Deep Slab Dehydration Beneath the Noto Peninsula
p.44 Hikaru Iwamori (ERI)
４.Purport of next intensive discussion
10 Years After the Kumamoto Earthquake: Current Understanding and Future Challenges