Solid Earth Sciences(S)
Session Sub CategoryComplex & General
Session IDS-CG70
TitleAnalysis and Prediction of Near-Source Strong Ground Motions: Present Status and Future Perspective
Short titleNear-Source Strong Ground Motions
Main ConvenerNameKimiyuki Asano
AffiliationDisaster Prevention Research Institute, Kyoto University
Co-Convener 1NameTakao Kagawa
AffiliationTottori University Graduate School of Engineering
Co-Convener 2NameHongjun Si
AffiliationSeismological Research Institute Inc.
Co-Convener 3NameHaruo Horikawa
AffiliationInstitute of Earthquake and Volcano Geology, National Institute for Advanced Science and Technology
ScopeDamaging earthquakes such as the 1994 Northridge and the 1995 Kobe earthquakes drew attention to near-source strong ground motions in seismological and earthquake engineering communities. Many important strong motion records have been accumulated with the progress of strong motion observation, and such important strong motion data drove the studies on the generation mechanism of near-source strong ground motions. Accumulation of scientific knowledge on near-source ground motion generation has made substantial progress in development of strong motion prediction during the decades, and results of strong motion prediction have been widely applied to producing hazard maps and investigation of design basis ground motions for important facilities. The 2016 Kumamoto earthquake sequence generated severe strong ground motions in near-fault area with observation of JMA intensity of 7 for two times, and it raised new issues on strong motion prediction for active faults. Ocean-bottom strong motion observation networks such as S-net and DONET are also launching, and these new networks would be expected to provide near-source strong ground motion records even in ocean area. Thus, it is timely to review the progress of studies for near-source strong ground motions and discuss future perspectives for advancing strong motion prediction methods. We widely invite contributions from all aspects of this subject.
Type of presentationOral and Poster presentation
Invited authors Ralph Archuleta (University of California, Santa Barbara)
Kazuki Koketsu (Earthquake Research Institute, University of Tokyo)