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Short title
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Subduction zone earthquakes and tsunamis
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Oral presentation
Date/Room/Chair
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May 25 AM1 (09:00 - 10:45)
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IC
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Ryota Hino
/ Shuichi Kodaira
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May 25 AM2 (11:00 - 12:45)
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IC
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Yoshihiro Ito
/ Yasuhiro Yamada
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May 25 PM1 (14:15 - 16:00)
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IC
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Michael Strasser
/ Demian Saffer
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May 25 PM2 (16:15 - 18:00)
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IC
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Kohtaro Ujiie
/ Kyuichi Kanagawa
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Poster presentation
Date/Room
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May 25 (Core Time 18:15 - 19:30)
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Convention Hall
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Contact
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Kyuichi Kanagawa
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Email
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kyu_kanagawa@faculty.chiba-u.jp
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Convener
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Kyuichi Kanagawa
/ Demian Saffer
/ Michael Strasser
/ Yasuhiro Yamada
/ Shuichi Kodaira
/ Ryota Hino
/ Kohtaro Ujiie
/ Yoshihiro Ito
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Scope
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Subduction zone megathrust earthquakes and their accompanying tsunamis, such as the Tohoku-oki earthquake on March 11 in 2011, have caused severe damage in the past. Scientists have worked for decades to understand these devastating events, mostly based on seismic, tsunami and geodetic observations. In addition to these remote monitoring studies, the challenge of drilling into and directly sampling megathrust faults at seismogenic depth, analysis of drill core and downhole logs, experiments on sampled fault materials, and borehole measurements at depth has recently been taken up or being planned by the Integrated Ocean Drilling or International Ocean Discovery Program at Nankai Trough (Nankai Trough Seismogenic Zone Experiment), Japan Trench (Japan Trench Fast Drilling Project and Tracking Tsunamigenic Slips in the Japan Trench), offshore Costa Rica (Costa Rica Seismogenesis Project), and at the Hikurangi margin. In this session, we welcome presentations based on such frontier studies, in addition to those based on seismic, tsunami and geodetic observations, numerical modeling, and analyses of fault rocks exhumed from seismogenic depth.
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Notes
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| Time |
Presentation No |
Title |
Author |
Presenter |
Abstract |
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Oral Presentation May 25 AM1 (09:00-10:45) IC to the top
|
|
09:00 - 09:20
|
Invited
SSS02-01
|
Determining slip near trench in the M 9 Tohoku-oki earthquake using bathymetry differences before and after the rupture
|
SUN, Tianhaozhe
WANG, Kelin
FUJIWARA, Toshiya
other
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SUN, Tianhaozhe
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|
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09:20 - 09:35
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SSS02-02
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Small low-frequency tremor coincident with slow slip events near the Japan Trench
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ITO, Yoshihiro
HINO, Ryota
SUZUKI, Syuichi
other
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ITO, Yoshihiro
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09:35 - 09:50
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SSS02-03
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In-Situ Observations of Earthquake-Driven Fluid Pulses within the Japan Trench Plate Boundary Fault Zone
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FULTON, Patrick
BRODSKY, Emly
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FULTON, Patrick
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|
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09:50 - 10:05
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SSS02-04
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Study of the ocean physical data acquisition before and after the earthquake using the Argo float
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GOTOH, Shinpei
TSUCHIYA, Toshio
HIYOSHI, Yoshihisa
other
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GOTOH, Shinpei
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10:05 - 10:20
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SSS02-05
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Chemical fingerprints of earthquake event deposits in the Japan Trench
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STRASSER, Michael
FINK, Hiske
IKEHARA, Ken
other
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STRASSER, Michael
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10:20 - 10:35
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SSS02-06
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Linkages between pelagic sedimentation and plate-boundary faulting
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UJIIE, Kohtaro
TABATA, Hiroki
KINOSHITA, Takahiro
other
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UJIIE, Kohtaro
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10:35 - 10:45
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3-min talk in an oral session (SSS02-P01/SSS02-P02/SSS02-P06)
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Oral Presentation May 25 AM2 (11:00-12:45) IC to the top
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11:00 - 11:15
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SSS02-07
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Toward imaging fault zones of outer rise earthquakes succeeding a large megathrust earthquake in the Japan Trench
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KODAIRA, Shuichi
FUJIE, Gou
NAKAMURA, Yasuyuki
other
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KODAIRA, Shuichi
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11:15 - 11:30
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SSS02-08
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Proper selection of least squares parameters in tsunami waveform inversion through computational intelligence
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MULIA, Iyan E.
ASANO, Toshiyuki
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MULIA, Iyan E.
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11:30 - 11:45
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SSS02-09
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Rupture dynamics inferred from early stage of the 2011 great Tohoku-oki earthquake
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ANDO, Ryosuke
UCHIDE, Takahiko
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UCHIDE, Takahiko
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11:45 - 12:00
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SSS02-10
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Characteristics and waveform simulation for dynamic rupture model of the 2011 Tohoku earthquake with deep SMGAs
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GALVEZ, Percy
PETUKHIN, Anatoly
IRIKURA, Kojiro
other
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PETUKHIN, Anatoly
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12:00 - 12:15
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SSS02-11
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Possible Rupture Scenario for the Area Off-Ibaragi Prefecture in the 2011 Off the Pacific Coast of Tohoku Earthquake
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TSUDA, Kenichi
ISHII, Toru
OGAWA, Sachio
other
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TSUDA, Kenichi
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12:15 - 12:30
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SSS02-12
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Structural control on the nucleation of Nankai megathrust earthquakes
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ZHAO, Dapeng
LIU, Xin
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ZHAO, Dapeng
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12:30 - 12:45
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SSS02-13
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Hydrous state of the Philippine Sea plate inferred from receiver function analysis using onshore and offshore data
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AKUHARA, Takeshi
MOCHIZUKI, Kimihiro
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AKUHARA, Takeshi
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Oral Presentation May 25 PM1 (14:15-16:00) IC to the top
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14:15 - 14:35
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Invited
SSS02-14
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Results from IODP Expedition 348: Deep Drilling Above the Plate Interface, Nankai Trough Subduction Zone
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TOBIN, Harold
HIROSE, Takehiro
SAFFER, Demian
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TOBIN, Harold
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14:35 - 14:55
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Invited
SSS02-15
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Seafloor monitoring for dynamics and stress state of the seismogenic plate interface in the Nankai Trough
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ARAKI, Eiichiro
KIMURA, Toshinori
MACHIDA, Yuya
other
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ARAKI, Eiichiro
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14:55 - 15:15
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Invited
SSS02-16
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Estimation of in-situ stress and strength along the Nankai Trough subduction megathrust
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KITAJIMA, Hiroko
SAFFER, Demian
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KITAJIMA, Hiroko
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15:15 - 15:30
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SSS02-17
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Estimation of sediment friction coefficient from heating upon APC penetration during the IODP NanTroSEIZE
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KINOSHITA, Masataka
LIN, Weiren
KAWAMURA, Kiichiro
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KINOSHITA, Masataka
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15:30 - 15:45
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SSS02-18
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Origin of mega-splay fault in subduction zone - out-of-sequence thrust or evolution gap in subduction
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KIMURA, Gaku
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KIMURA, Gaku
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15:45 - 16:00
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SSS02-19
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Plate geometry, splay fault and tsunamigenic earthquake in the southernmost Ryukyu trench
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ARAI, Ryuta
KAIHO, Yuka
TAKAHASHI, Tsutomu
other
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ARAI, Ryuta
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Oral Presentation May 25 PM2 (16:15-18:00) IC to the top
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16:15 - 16:35
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Invited
SSS02-20
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Unlocking the secrets of slow slip at the Hikurangi subduction margin
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WALLACE, Laura
SAFFER, Demian
ITO, Yoshihiro
other
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WALLACE, Laura
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16:35 - 16:50
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SSS02-21
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Physical property and Microstructure across the Seismic reflectors in the Upper plate of the Costa Rica Subduction zone
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HAMAHASHI, Mari
SCREATON, Elizabeth
TANIKAWA, Wataru
other
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HAMAHASHI, Mari
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16:50 - 17:05
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SSS02-22
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Rupture process of the 2014 Iquique, Chile earthquake estimated from tsunami waveforms, teleseismic, and GPS data
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GUSMAN, Aditya
MUROTANI, Satoko
SATAKE, Kenji
other
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GUSMAN, Aditya
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17:05 - 17:20
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SSS02-23
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Tsunami Hazards from secondary sources in the Makran Subduction Zone, northwestern Indian Ocean
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HEIDARZADEH, Mohammad
SATAKE, Kenji
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HEIDARZADEH, Mohammad
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17:20 - 17:35
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SSS02-24
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Microfault classification and difference in roughness with seismic cycles exampled from the Chelung-pu fault, Taiwan
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HASHIMOTO, Yoshitaka
KISHI, Shohei
TOBE, Kota
other
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HASHIMOTO, Yoshitaka
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17:35 - 17:50
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SSS02-25
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Dynamic weakening of smectite-bearing faults at subseismic slip rates
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OOHASHI, Kiyokazu
HIROSE, Takehiro
TAKAHASHI, Miki
other
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OOHASHI, Kiyokazu
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17:50 - 18:00
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3-min talk in an oral session (SSS02-P07/SSS02-P09/SSS02-P10)
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| Presentation No |
Title |
Author |
Presenter |
Abstract |
|
Poster Presentation May 25 Core Time (18:15-19:30) Convention Hall to the top
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SSS02-P01
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Investigation of the Behavior of Shallow Parts of Mega-Thrust Earthquake Faults Based on Dynamic Rupture Simulations
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TSUDA, Kenichi
ISHII, Toru
OGAWA, Sachio
other
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TSUDA, Kenichi
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SSS02-P02
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Epicenter determination by back-projecting onshore and offshore seismic data along the Japan Trench
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NAKATANI, Yukihiro
MOCHIZUKI, Kimihiro
SHINOHARA, Masanao
other
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NAKATANI, Yukihiro
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SSS02-P03
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Structural characteristics observed on high resolution seismic profiles in the northern Japan Trench axis region
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NAKAMURA, Yasuyuki
KODAIRA, Shuichi
YAMASHITA, Mikiya
other
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NAKAMURA, Yasuyuki
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SSS02-P04
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Mechanical and hydrological properties of incoming sediments at the Japan Trench and the weak-decollement evolution
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SHIMIZU, Mayuko
TANIKAWA, Wataru
HAMADA, Yohei
other
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SHIMIZU, Mayuko
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SSS02-P05
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Frictional properties of subducting oceanic sediments and rocks at a shallow Japan Trench condition and slow slip rates
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HOSHINO, Koki
KANAGAWA, Kyuichi
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HOSHINO, Koki
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SSS02-P06
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Clay minerals in the Nankai Trough accretionary sediments as a function of depth
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HOSHINO, Koki
KANAGAWA, Kyuichi
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HOSHINO, Koki
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SSS02-P07
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Borehole stability discussion of NanTroSEIZE main-site, C0002
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WU, Hungyu
SANADA, Yoshinori
KINOSHITA, Masataka
other
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WU, Hungyu
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SSS02-P08
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Incoming materials for an erosional subduction zone, offshore Osa Peninsula, Costa Rica
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KAMEDA, Jun
HARRIS, Robert
SHIMIZU, Mayuko
other
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KAMEDA, Jun
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SSS02-P09
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Change in stress state in an on-land accretionary complex : implication for large stress drop with subduction earthquake
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HASHIMOTO, Yoshitaka
UEDA, Dai
MOTOMIYA, Yuhei
other
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HASHIMOTO, Yoshitaka
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SSS02-P10
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Coseismic stress of ancient seismic fault of Median Tectonic Line at Mie Matsusaka, Japan
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KOMETANI, Yusuke
SHIGEMATSU, Norio
SAKAGUCHI, Arito
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KOMETANI, Yusuke
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