Abstract of the 141st meeting of CCEP

 The 141st meeting of the Coordinating Committee for Earthquake Prediction (CCEP) was held at the Kanto Regional Survey Department of the GSI on Feb. 19,2001. Universities and national research institutes reported and discussed the results of observations and investigations about seismic and crustal activities in Japan. Main topics of discussions are listed below.

• Seismic activities of Japan.
  • fig. 1 Earthquakes of M5 or greater in andnear Japan. (JMA)
• Seismic activities and the Crustal deformations of the Tokai district.
  • fig. 2 Time series of height change of BM2595 (Hamaoka)as referenced to BM141-1 (Kakegawa). (GSI)
  • fig. 3 Seismic activities in the assumed sourceregion of the Tokai earthquake. (1) (NIED)
  • fig. 4 Seismic activities in the assumed sourceregion of the Tokai earthquake. (2) (NIED)
  • fig. 5 Seismic activities of Enshu Nada to Kumano Nada. (JMA)
• Crustal deformations by the earthquake and the volcanic activity of the Izu islands.
  • fig. 6 Seismic activities around the Niijima, Kouzujim, and Miyakejima. (JMA)
  • fig. 7 Seismic activities of the Izu islands in 2000. (ERI)
  • fig. 8 Horizontal crustal-movement vector of the Izu islands. (GSI)
• Seismic activities off east coast of the Izu Peninsula.
  • fig. 9 Daily number of earthquakes observed at Kamata in Ito city. (JMA)
• Seismic activities in The northern Hyogo prefecture.
  • fig. 10 Seismic activities in the northern Hyogo prefecture. (JMA)
  • fig. 11 Focal mechanism solution of the earthquakes in the northern Hyogo prefecture. (JMA)
  • fig. 12 Seismic activities in the western Teottori prefecture form northern Hyogo prefecture. (Kyoto Univ.)
• Subject about the earthquake of the Sea of Japan east edge.
  • fig. 13-1 Velocities of horizontal deformations of Japan. (GSI)
  • fig. 13-2 The profile of the direction of longitude by the modification speed of the east-and-west ingredient of the crust. (GSI)
  • fig. 14 The active fault of the Sea of Japan east edge. (GSJ)
  • fig. 15-1 The Seismic activities and the Crustal deformations of the Hokkaidou northern part and South Sakhalin. (1) (Hokkaidou Univ.)
  • fig. 15-2 The Seismic activities and the Crustal deformations of the Hokkaidou northern part and South Sakhalin. (2) (Hokkaidou Univ.)
  • fig. 16 The distribution of the focus of a 1983 Nihonkai-tyubu earthquake (M7.7) and the 1997 earthquake (M5.6). (Tohoku Univ.)
  • fig. 17 Seismic activities larger than M6.5 by the side of the Sea of Japan. (k. Mogi)