HR: 1330h
AN: S12B-0391    [PDF]
TI: Behavioral Segment $<$ETH$>$Based Active Fault Database of Japan, Application to the Evaluation of Active Fault and Seismotectonic Study
AU: * Awata, Y
EM: awata-y@aist.go.jp
AF: Active Fault Research center, GSJ/AIST, AIST Centerl-7, Higashi 1-1-1, Tsukuba, 305-8567 Japan
AU: Yoshioka, T
EM: yoshioka-t@aist.go.jp
AF: Active Fault Research center, GSJ/AIST, AIST Centerl-7, Higashi 1-1-1, Tsukuba, 305-8567 Japan
AB: The Active Fault Research Center, GSJ / AIST has been constructing an active fault database to make a probabilistic evaluation of the future faulting event and earthquake occurrence on major active faults in Japan. The database consists of three sud-datbase, (1) sub-database on individual site, which including long-term slip data and paleoseisicicity data with error range and reliability, (2) sub-database on details of paleoseismicity, which includes the excavated geological units and faulting event horizons with age$<$ETH$>$control, and (3) sub-database on characteristics of behavioral segments, which includes the fault length, long-term slip-rate, recurrence interval, most-recent event, slip-per-event and vest estimated segment for cascade earthquake. Major seismogenic faults, those are approximately the best-estimated segments of cascade earthquake, each has a length of 20 km and longer and slip-rate of 0.1 m/ky and larger, is composed of about two behavioral segments segment in average, are including in the database. The result of national project on active fault research, which has been carrying out since the Kobe earthquake of 1995 are put together. The input of data will be complete by early 2004, and a tentative database will be opened to the public on the AFRC web-site. The easily expandable and renewable database will promote not only the evaluation of future earthquake on active faults, but also the study on seismotectonic settings of Japan. We introduce tentative application to the evaluation of Kinki District and the Median Tectonic Line (MTL) active fault system in Central-Western Japan, and the Late Quaternary seismotectonics in the northeast Honshu, the main island of Japan.
DE: 7221 Paleoseismology
DE: 7223 Seismic hazard assessment and prediction
DE: 8005 Folds and folding
SC: Seismology [S]
MN: 2003 Fall Meeting