Outline of Session


Solid Earth Sciences(S) / Complex & General(CG)
S-CG65 20th anniversary of the Kobe earthquake: Progress in the studies of active faults and strong motion

Short title 20th anniversary of the Kobe earthquake
Oral presentation
May 26 AM1 (09:00 - 10:45) A04 Haruo Horikawa  / Tadashi Maruyama 
May 26 AM2 (11:00 - 12:45) A04 Hiroe Miyake  / Hisashi Nakahara 
Poster presentation
May 26 (Core Time 18:15 - 19:30) Convention Hall
Contact Hisashi Nakahara
Email naka@zisin.gp.tohoku.ac.jp
Convener Hisashi Nakahara  / Haruo Horikawa  / Tadashi Maruyama 
Scope Twenty years have passed since the 1995 Hyogo-ken Nanbu (Kobe) earthquake and the great Hanshin-Awaji Earthquake Disaster that caused casualties and missing of more than 6000. A part of the earthquake source fault appeared on the ground surface in the northern part of the Awaji Island, and put our focus on active faults. The Kobe earthquake also drastically changed earthquake research environments in Japan. Comprehensive and basic policies about earthquakes and disaster mitigation are planned by the Headquarters for Earthquake Research Promotion. Nation-wide observation networks have been setup and innovated. In addition, evaluations of active faults and strong ground motions have been made. These activities have contributed to accumulation of our knowledge on the distribution and history of active faults and subsurface structure. A large amount of strong motion records during the inland earthquakes were obtained after the Kobe events. In addition, strong ground motions just above and/or close to the source faults were also recorded for several earthquakes. Researches associated with the evaluations and investigations of these records have deepened our understanding of seismic faults of inland earthquakes, active faults and strong motions. On the other hand, after an accident at Fukushima Daiichi Nuclear Power Station, new regulation has been enforced for the safety of nuclear power stations in Japan, and active faults again attract attention. Under the circumstance, we will summarize the progresses of our understanding on active faults, inland earthquakes and strong ground motion in these 20 years, and discuss future directions. We widely invite contributions about the related subjects.

Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 26 AM1 (09:00-10:45) A04                              to the top
09:00 - 09:25 Invited
A perspective on the 20-year active fault survey SUGIYAMA, Yuichi SUGIYAMA, Yuichi English
09:25 - 09:40 SCG65-02 Relation between the 1995 Hyogoken-Nanbu Earthquake and the great Keicho Earthquke IIO, Yoshihisa IIO, Yoshihisa English
09:40 - 09:55 SCG65-03 Complexity of source fault of inland earthquakes revealed by SAR interferometry HASHIMOTO, Manabu HASHIMOTO, Manabu English
09:55 - 10:10 SCG65-04 Problems of long-term earthquake forecast in Japan: Do we learn from the Kobe earthquake properly? SAGIYA, Takeshi SAGIYA, Takeshi English
10:10 - 10:25 SCG65-05 Ultra-fine amorphous particles preserved in the primary slip zone within the Arima-Takatsuki Tectonic Line ASAYAMA, Satoru
KANEKI, Shunya
HIRONO, Tetsuro
ASAYAMA, Satoru English
10:25 - 10:40 SCG65-06 Characteristics of radiated short-period seismic energy from moderate-to-large inland earthquakes NAKAHARA, Hisashi NAKAHARA, Hisashi English
Oral Presentation   May 26 AM2 (11:00-12:45) A04                              to the top
11:00 - 11:25 Invited
Progress in ground motion prediction SEKIGUCHI, Haruko SEKIGUCHI, Haruko English
11:25 - 11:40 SCG65-08 Various Topics on Engineering Applications of Strong Ground Motion Prediction near Active Fault HISADA, Yoshiaki HISADA, Yoshiaki English
11:40 - 11:55 SCG65-09 Strong Ground Motion Generation for the 2014 Northern Nagano Earthquake MIYAKE, Hiroe
SI, Hongjun
MIYAKE, Hiroe English
11:55 - 12:10 SCG65-10 Long-period Ground Motion in Tokyo Bay Area Observed from the M7 Class Events in the North of Nagano Prefecture, Japan UETAKE, Tomiichi UETAKE, Tomiichi English
12:10 - 12:25 SCG65-11 Rupture process of the 2014 Northern Nagano earthquake as deduced from near-source strong motion records HORIKAWA, Haruo HORIKAWA, Haruo English
12:25 - 12:40 SCG65-12 Strong motion simulation for the 2014 Northern Nagano Prefecture earthquake based on the pseudo point-source m NOZU, Atsushi NOZU, Atsushi English
12:40 - 12:45 3-min talk in an oral session (SCG65-P01)

Presentation No Title Author Presenter Abstract
Poster Presentation   May 26  Core Time (18:15-19:30) Convention Hall                    to the top
SCG65-P01 Investigation on earthquake damage in the Near-Surface-Fault area during the 2014 Northern Nagano Prefecture earthquake SI, Hongjun
SASAKI, Tetsuro
SI, Hongjun English
SCG65-P02 Source model of the 2014 Northern Nagano earthquake (Mj 6.7) by waveform inversion with empirical Green's functions SHIBA, Yoshiaki SHIBA, Yoshiaki English