Mon. May 23, 2016 3:30 PM - 4:30 PM 302 (3F)

Convener:*Hisashi Nakahara(Solid Earth Physics Laboratory, Department of Geophysics, Graduate School of Science, Tohoku University), Yoshiaki Hisada(Kogakuin University, School of Architecture), Kazuhito Hikima(Tokyo Electric Power Company), Chair:Hisashi Nakahara(Solid Earth Physics Laboratory, Department of Geophysics, Graduate School of Science, Tohoku University), Kazuhito Hikima(Tokyo Electric Power Company)

The Kyoshin network (K-NET) was constructed after the 1995 Hyogo-ken Nanbu earthquake and the great Hanshin-Awaji Earthquake Disaster, and has been operated by the National Research Institute for Earth Science and Disaster Prevention since June 1996. The K-NET has the following important characteristics that are totally different from those of the past observations. (1) It uniformly covers all over Japan with stations distributed every 20km, (2) It consists of more than 1,000 standardized strong-motion seismometers, (3) Recorded data are made available on quasi real-time basis. Thanks to these characteristics, a large number of researchers and practitioners not only in Japan but also abroad have been using K-NET data to understand many subjects such as physics of earthquakes, seismic hazard caused by strong ground motion, and resultant earthquake disasters. The K-NET is producing a huge database of strong ground motions including extreme ones recorded near source faults, and the database is widely used in seismology, earthquake engineering, and so on. Celebrating the 20th anniversary of the K-NET, we will summarize academic and societal achievements brought so far by the K-NET and discuss the future of strong-motion networks including the K-NET. We widely invite contributions to the related subjects including analyses using K-NET data.