Abstract of the 243th meeting of CCEP

The 243th meeting of the Coordinating Committee for Earthquake Prediction (CCEP) was held at the Kanto Regional Survey Department of the GSI on May 22, 2024. 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 "On the relationship between earthquake and volcanic activity" was explained.
※The materials on this site are written in Japanese.

• Deliberation about crustal activity monitoring.

1.1 General crustal activities
(1) Seismic activities of Japan.
p2 (JMA)
(2) Strain changes in Japanese Islands.
p3-4 (GSI)





1.2 State of interplate coupling and its change.
(1)Japan trench,Chishima trench
p5 (JMA)
p6 (JMA)
(2)Around Sagami Trough/directly under the metropolitan area
p7-8 (JMA)
p9-10(GSI)
p11(JMA)
(3)Nankai trough and Nansei islands trench.
p12-14(NIED)
p15(GSI)
p16(GSI)





1.3 Others
(1) Earthquake off the western coast of the Ogasawara Islands (April 27, M6.7)
p17 (JMA)
(2) Bungo Channel Earthquake (April 17, Mw6.6)
p18-21 (JMA)
p22 (GSI)
(3) Earthquake off the east coast of Osumi Peninsula (April 8, M5.1)
p23 (JMA)
(4) Earthquake near Taiwan (April 3, M7.7)
p24-28 (JMA)
p29-30 (GSI)
(5) Urgent aftershock observation in the eastern source region of the 2024 Noto-Hanto earthquake using ocean bottom seismometers (Second report)
p31-33 (ERI)
(6) Analysis of Aftershock Activity of the 2024 Noto Peninsula M7.6 Earthquake
p34-36 (ISM)






1.4 Prediction of crustal activity
(1)Experiments in Prediction of Crustal Activity (2) — Short-term Probability Prediction and Evaluation of Inland Earthquakes (2019 – 2024.01.08)
p39-40 (ISM)
(2)Earthquake forecasting by using the seismic intensity database of Japan Meteorological Agency (Evaluation of forecast results for 2023 and update of occurrence probability values)
p41 (Univ.Shiga Pref.)




• Intensive discussion - Examination of the "On the relationship between earthquake and volcanic activity".

p43-44 Convener：Koshun Yamaoka(Nagoya University)

-Earthquake source fault models around the Noto Peninsula
p45 Eisuke Fujita(NIED)




-Volcanic processes inferred from volcano-tectonic earthquakes
p46 Yuichi Morita(Tokyo University)




-Non-earthquake seismic signals at volcanoes
p47 Yuta Maeda (Nagoya University)




-Interaction between earthquakes and volcanoes:analyses of data base
p48 Taishi Nishimura (Tohoku University)

• Purport of next intensive discussion "2023 Türkiye–Syria earthquakes".

p49 Convener：Katsuhiko Shiomi(NIED)

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