Kubota Tatsuya

Last updated: Oct 31, 2019 at 17:43

Name	Kubota Tatsuya
E-mail	kubotatsubosai.go.jp
URL	http://quaketm.bosai.go.jp/~kubota/index.en.html
Affiliation	National Research Institute for Earth Science and Disaster Prevention
ORCID ID	0000-0003-4766-4771

Research Interests

tsunami(45) , seismology(97)

Research Areas

Earth and planetary science / Solid earth and planetary physics / Seismology

Academic & Professional Experience

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Apr 2017

Today

Associated Research Fellow, Earthquake and Tsunami Research Division, National Research Institute for Earth Science and Disaster Resilience

Education

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Apr 2014

Mar 2017

Department of Geophysics, Graduate School of Science, Tohoku University

Apr 2011

Mar 2013

Department of Geophysics, Graduate School of Science, Tohoku University

Apr 2007

Mar 2011

Department of Geophysics, Faculty of Science, Tohoku University

Awards & Honors

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May 2016

Student Outstanding Presentation Award, Japan Geoscience Union

Oct 2012

Student Outstanding Presentation Award, Seismologicai Society of Japan

Sep 2012

Best Student Poster Award, G-COE Symposium 2012, "Seismic wave propagation and crustal heterogeneity & The 2011 Tohoku earthquake and earthquake cycle"

Published Papers

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Migrations and Clusters of Shallow Very Low Frequency Earthquakes in the Regions Surrounding Shear Stress Accumulation Peaks along the Nankai Trough

Takemura, S., A Noda, T. Kubota, Y. Asano, T. Matsuzawa, K. Shiomi

Geophysical Research Letters 2019 [Refereed]

The spatiotemporal characteristics of shallow slow earthquake activity are linked to the tectonic environments of shallow plate boundaries. In this work, the spatiotemporal variations of shallow very low frequency earthquake (SVLFE) activity along...

Using tsunami waves reflected at the coast to improve offshore earthquake source parameters: Application to the 2016 Mw 7.1 Te Araroa earthquake, New Zealand

Kubota, T., T. Saito, Y. Ito, Y. Kaneko, L.M. Wallace, S. Suzuki, R. Hino, S. Henrys

Journal of Geophysical Research: Solid Earth 123 8767-8779 Oct 2018 [Refereed]

The Te Araroa earthquake occurred on 2 September 2016 (local time) offshore of the northeastern coast of New Zealand's North Island (Mw 7.1). When this event occurred, ocean bottom pressure gauges (OBPs), installed ~170 km south of the source area...

Tsunami source inversion using time-derivative waveform of offshore pressure records to reduce the effects of non-tsunami components

Kubota, T., W. Suzuki, T. Nakamura, N. Y. Chikasada, S. Aoi, N. Takahashi, R. Hino

Geophysical Journal International 215 1200-1214 Sep 2018 [Refereed]

Offshore ocean bottom pressure gauges (OBPs) are often used to estimate the spatial distribution of the initial sea-surface height associated with offshore earthquakes (the tsunami source model). However, the sensors sometimes record pressure chan...

Estimation of Seismic Centroid Moment Tensor Using Ocean Bottom Pressure Gauges as Seismometers

Kubota, T., T. Saito, W. Suzuki, R. Hino

Geophysical Research Letters 44 10907-10915 Oct 2017 [Refereed]

We examined the dynamic pressure change at the seafloor to estimate the centroid moment tensor solutions of the largest and second largest foreshocks (Mw 7.2 and 6.5) of the 2011 Tohoku‐Oki earthquake. Combination of onshore broadband seismograms ...

Complicated rupture process of the Mw 7.0 intraslab strike-slip earthquake in the Tohoku region on 10 July 2011 revealed by near-field pressure records

Kubota, T., R. Hino, D. Inazu, Y. Ito, T. Iinuma

Geophysical Research Letters 42 9733-9739 Nov 2015 [Refereed]

We examined fault models of the Tohoku strike‐slip intraslab earthquake (Mw 7.0) on 10 July 2011 using near‐field tsunami data. After constraining the strike and location of the fault from tsunami source distribution, we investigated fault models ...

Coseismic slip model of offshore moderate interplate earthquakes on March 9, 2011 in Tohoku using tsunami waveforms

Kubota, T., R. Hino, D. Inazu, Y. Ito, T. Iinuma, Y. Ohta, S. Suzuki, K. Suzuki

Earth and Planetary Science Letters 458 241-251 Jan 2017 [Refereed]

We estimated the coseismic slip distribution associated with the Mw 7.2 and 6.5 foreshocks of the 2011 Tohoku-Oki earthquake based on analysis of the tsunami waveform records obtained just above their focal areas. The results show that the main ru...

A study on major earthquakes related to the 2011 Tohoku-Oki Earthquake based on near-field tsunami records

Kubota, T.

Tohoku University Mar 2017

Fault modeling based on near-field tsunami observation

Kubota, T.

Tohoku University Mar 2013

Misc

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Issue Information

Journal of Geophysical Research: Solid Earth 123(10) 8295-8297 Oct 2018

A figure from Kubota et al. (2018) was chosen for the cover of this issue

Conference Activities & Talks

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Ultra-broadband observations of seismic and tsunami waves of ocean bottom pressure gauges off the NE Japan and spectral analysis combined with the records of seismometers and tide gauges

Kubota, T., T. Saito, N.Y. Chikasada, W. Suzuki

AGU 2019 Fall Meeting Dec 2019 American Geophysical Union

Group velocity dispersion of teleseismic tsunami and seismic Rayleigh wave observed by ocean bottom pressure gauges installed off Tohoku

Kubota, T., T. Saito, N.Y. Chikasada, W. Suzuki

SSJ Fall Meeting 2019 Sep 2019 Seismological Society of Japan

S17P-04

Near-field array observation of the 2015 Mw6.0 Bonin Trench earthquake: from foreshock to post-seismic seafloor deformation

Fukao, Y., H. Sugioka, A. Ito, M. Yamashita, T. Tonegawa, H. Shiobara, T. Kubota, T. Saito

SSJ Fall Meeting 2019 Sep 2019 Seismological Society of Japan

S17-06

Near-field array observation of the 2015 Mw6.0 Bonin Trench earthquake: Modeling in-situ tsunami generation field

Kubota, T., T. Saito, Y. Fukao, H. Sugioka, A. Ito, M. Yamashita, T. Tonegawa, H. Shiobara

SSJ Fall Meeting 2019 Sep 2019 Seismological Society of Japan

S17-07

Detection and relocation of shallow very low-frequency earthquakes along the Nankai Trough based on cross-correlation analysis

Takemura, S., Y. Asano, T. Matsuzawa, A. Noda, T. Kubota, K. Shiomi

SSJ Fall Meeting 2019 Sep 2019 Seismological Society of Japan

S09P-01

Spatiotemporal variations of shallow very low-frequency earthquake activities along the Nankai Trough

Takemura, S., Y. Asano, T. Matsuzawa, A. Noda, T. Kubota, K. Shiomi,

27th IUGG General Assembly Jul 2019 International Union of Geodesy and Geophysics

JS04p-081

Fault model of the 2012 off-Miyagi intraslab earthquake doublet and its implication for rheological signature of incoming Pacific plate

Kubota, T., R. Hino, S. Suzuki

JpGU Meeting 2019 May 2019 Japan Geoscience Union

SCG50-10

Utilizing coastal-reflected tsunami waves observed by the ocean bottom pressure gauges to improve offshore earthquake source parameters: Application to the 2016 Te Araroa earthquake, New Zealand (Mw 7.0)

Kubota, T., T. Saito, Y. Ito, Y. Kaneko, L.M. Wallace, S. Suzuki, R. Hino, S. Henrys

AGU 2018 Fal Meeting Dec 2018 American Geophysical Union

T51I-0294

Appropriate Evaluation of Deep Ocean Bottom Pressure Changes Caused by Short Wavelength Tsunami

Chikasada, N.Y., T. Kubota, T. Nakamura, T. Baba, T. Saito, W. Suzuki

AGU 2018 Fall Meeting Dec 2018 American Geophysical Union

NH34B-06

Fault model of the Te Araroa earthquake, New Zealand, using ocean bottom pressure records

Kubota, T., T. Saito, Y. Ito, Y. Kaneko, L.M. Walace, S. Suzuki, R. Hino, S. Henrys

SSJ Fall Meeting 2018 Oct 2018 Seismological Society of Japan

S08-14

Observation of ocean bottom pressure changes caused by short wavelength ocean wave

Chikasada, N.Y., T. Kubota, T. Nakamura, T. Baba, T. Saito, W. Suzuki

SSJ Fall Meeting 2018 Oct 2018 Seismological Society of Japan

S16-08

Combining tsunami waves reflected at the coast with the direct tsunami waves: Fault modelling of the 2016 Te Araroa earthquake, New Zealand

Kubota, T., T. Saito, Y. Ito, Y. Kaneko, L.M. Wallace, S. Suzuki, R. Hino, S. Henrys

10th ACES International Workshop Sep 2018 APEC Cooperation for Earthquake Science

O31-2

Observation of ocean bottom pressure changes caused by short wavelength ocean wave

Chikasada, N. Y., T. Kubota, T. Nakamura, T. Baba, T. Saito, W. Suzuki

10th ACES International Workshop Sep 2018 APEC Cooperation for Earthquake Science

O32-4

Numerical experiments for estimating CMT solutions using inland and offshore seismic networks in Tohoku

Kubota, T., S. Takemura, T. Saito

AOGS 15th Annual Meeting Jun 2018 Asia Oceania Geosciences Society

SE27-A006

Long-term monitoring of vertical temperature gradient of seawater on the deep seafloor

Suzuki, S., R. Hino, M. Sato, Y. Ito, T. Kubota, D. Inazu

JpGU 2018 Meeting May 2018 Japan Geoscience Union

SCG67-P04

Estimating centroid location and source dimension of the Te Araroa earthquake (Mw 7.1), New Zealand by analyzing direct and reflected tsunamis

Kubota, T., T. Saito, Y. Ito, R. Hino, S. Suzuki, Y. Kaneko, L.M. Wallace

JpGU Meeting 2018 May 2018 Japan Geoscience Union

SSS06-P03

Tsunami source model of the earthquake off Mie Prefecture on 1 April 2016 (Mw 5.9) derived from the time derivative of the offshore pressure records observed by DONET

Kubota, T., W. Suzuki, S. Aoi, N. Y. Chikasada, T. Nakamura, N. Takahashi

JpGU Meeting 2018 May 2018 Japan Geoscience Union

HDS10-14

Synthetic tests for evaluating the precision of the centroid depth estimation of offshore earthquakes using onshore and offshore seismic networks

Kubota, T., S. Takemura, T. Saito

JpGU Meeting 2018 May 2018 Japan Geoscience Union

SSS10-P12

Challenge for the accurate CMT estimation of the offshore earthquakes using ocean bottom pressure gauges as seismometers

Kubota, T., T. Saito, W. Suzuki, R. Hino

AGU 2017 Fall Meeting Dec 2017 American Geophysical Union

S34B-01

Tsunami source inversion of the interplate moderate earthquake off Tohoku (Mw 7.3) using time-differential pressure record

Kubota, T., W. Suzuki, N. Yamamoto, S. Aoi, R. Hino

SSJ Fall Meeting 2017 Oct 2017 Seismological Society of Japan

S17-P02

Regional centroid moment tensor analysis using ocean bottom pressure gauges as seismometers

Kubota, T., T. Saito, W. Suzuki, R. Hino

SSJ Fall Meeting 2017 Oct 2017 Seismological Society of Japan

S08-42

The seismotectonic implications of source models of M-7 class earthquakes before and after the 2011 Tohoku-Oki Earthquake using offshore tsunami records

Kubota, T., R. Hino, Y. Ohta, S. Suzuki

IAG-IASPEI 2017 Jul 2017 IAG-IASPEI

J02-P-14

Finite fault model of the 2012 intraslab earthquake doublet and its implication for coseismic stress change in the Pacific plate associated with the 2011 Tohoku-Oki earthquake

Kubota, T., R. Hino, Y. Ohta, D. Inazu, S. Suzuki

JpGU-AGU Joint Meeting 2017 May 2017 Japan Geoscience Union

SSS07-P04

Rupture process of Tohoku intraslab earthquake jointly based on near-field tsunami and far-field seismic records

Kubota, T., R. Hino, Y. Ohta, S. Suzuki, D. Inazu

SSJ Fall Meeting 2016 Oct 2016 Seismological Society of Japan

S04-P02

Detecting a relative motion across the Japan Trench using precise acoustic ranging

Yamamoto, R., R. Hino, M. Kido, Y. Ohta, T. Kubota, F. Tomita, K. Ohta, Y. Osada

JpGU Meeting 2016 May 2016 Japan Geoscience Union

SSS02-P01

Retrospective evaluation of tFISH/RAPiD performance: tsunami forecasting based on offshore tsunami and GNSS data

Horiuchi, A., R. Hino, Y. Ohta, T. Kubota, H. Tsushima

JpGU Meeting 2016 May 2016 Japan Geoscience Union

SSS29-10

Improved fault model of the Tohoku intraslab earthquake on Dec. 2012 (Mw 7.2) and its implication for the post-2011 stress state

Kubota, T., R. Hino, S. Suzuki, Y. Ohta, D. Inazu

JpGU Meeting 2016 May 2016 Japan Geoscience Union

SSS02-P05

Fault model of the intraplate doublet on Dec. 7 2012 derived from nearand far-field tsunami records and its implication for the post-2011 stress state

Kubota, T., R. Hino, Y. Ohta, S. Suzuki, D. Inazu

AGU 2015 Fall Meeting Dec 2015 American Geophysical Union

T21D-2861

Long-term continuous observation of vertical gradient of water temperature on the deep seafloor

Suzuki, S., R. Hino, Y. Ito, T. Kubota, D. Inazu

AGU 2015 Fall Meeting Dec 2015 Americal Geophysical Union

S31A-2734

深海底直上における海水温鉛直勾配の長期連続観測

Suzuki, S., R. Hino, Y. Ito, T. Kubota, D. Inazu

SSJ Fall Meeting 2015 Oct 2015 Seismological Society of Japan

S04-P07

実観測記録を用いたtFISHによる近地津波予測性能評価

Horiuchi, A., R. Hino, Y. Ohta, T. Kubota, H. Tsushima

SSJ Fall Meeting 2015 Oct 2015 Seismological Society of Japan

S17-04

日本海溝を挟んだ音響測距観測：長期・長基線・多点観測にむけて

Hino, R., R. Yamamoto, Y. Osada, M. Kido, S. Suzuki, Y. Ohta, T. Kubota, F. Tomita

124th Meeting of the Geodetic Society of Japan Oct 2015 The Geodetic Society of Japan

Re-examination of the fault model of an intraslab doublet on Dec. 2012 (Mw 7.2, 7.2) based on tsunami records

Kubota, T., R. Hino, Y. Ohta, S. Suzuki, D. Inazu

SSJ Fall Meeting 2015 Oct 2015 Seismological Society of Japan

S04-P08

Retrospective evaluation of tFISH performance: Forecasting of tsunami caused by the M 7.3 earthquake on Mar. 9, 2011

Horiuchi, A., R. Hino, Y. Ohta, T. Kubota, H. Tsushima

JpGU Meeting 2015 May 2015 Japan Geoscience Union

HDS27-04

Tsunami source of the earthquake doublet on Dec. 7 2012 derived from near-field records by ocean bottom pressure gauges

Kubota, T., R. Hino, Y. Ohta, S. Suzuki, D. Inazu

JpGU Meeting 2015 May 2015 Japan Geoscience Union

HDS27-18

Fault modeling of the Mw 7.0 shallow intra-slab strike-slip earthquake occurred on 2011 July 10th using near-field tsunami record

Kubota, T., R. Hino, T. Iinuma

AGU 2014 Fall Meeting Dec 2014 American Geophysical Union

T41B-4610

Spatial distribution of earthquakes around the southern end of the co-seismic slip of the 2011 Tohoku Earthquake

Nakahigashi, K., Y. Machida, T. Shimbo, T. Yamada, K. Mochizuki, H. Shobara, M. Shinohara, Y. Murai, R. Hino, R. Azuma, K. Suzuki, T. Kubota, K. Hasegawa, T. Sato, H. Takada, K. Uehira, H. Yakiwara

AGU 2014 Fall Meeting Dec 2014 American Geophysical Union

S13D-4503

Transient crustal deformation due to slow slip observed on ocean bottom pressure recorders in the Hikurangi margin

Ito, Y., L.M. Wallace, S.A. Henrys, K. Mochizuki, C.A. Williams, R. Hino, H. Ichihara, D. nazu, S. Suzuki, T. Yagi, T. Kubota, D. Haijima, B. Fry

AGU 2014 Fall Meeting Dec 2014 American Geophysical Union

T51A-4599

A Reliability Assessment of the Coastal Tsunami Prediction Based on the Ambiguity of the Coseismic Fault Model by Real-time GPS Analysis

Kubota, T., R. Hino, Y. Ohta, S. Koshimura, T. Saito

SSJ Fall Meeting 2014 Nov 2014 Seismological Society of Japan

C11-09

Fault Modeling of the M-7 Class Earthquakes Using the Records of Ocean Bottom Pressure Gauges

Kubota, T., R. Hino, T. Iinuma, Y. Ito, D. Inazu, Y. Ohta

International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) 2014 Jul 2014 International Association of Geodesy

Spatial distribution of earthquakes off the coast of Ibaraki and the Boso Peninsula after the 2011 Tohoku Earthquake

Nakahigashi, K., Y. Machida, T. Shimbo, T. Yamada, K. Mochizuki, H. Shobara, M. Shinohara, Y. Murai, R. Hino, R. Azuma, K. Suzuki, T. Kubota, K. Hasegawa, T. Sato, H. Takada, K. Uehira, H. Yakiwara

JpGU Meeting 2014 May 2014 Japan Geoscience Union

SSS24-P04

Fault modeling of the foreshocks of the 2011 Tohoku-oki earthquake based on near-field tsunami observation

Kubota, T., R. Hino, T. Iinuma, Y. Ito, Y. Ohta, S. Suzuki, D. Inazu, T. Saito, Y. Kaneda

JpGU Meeting 2013 May 2013 Japan Geoscience Union

SSS28-08

Source models of M-7 class earthquakes in the rupture area of the 2011 Tohoku-Oki Earthquake by near-field tsunami modeling

Kubota, T., R. Hino, D. Inazu, T. Saito, T. Iinuma, S. Suzuki, Y. Ito, Y. Ohta, K. Suzuki

AGU 2012 Fall Meeting Dec 2012 American Geophysical Union

T13B-2594

震源域直上の事故浮上式海底圧力計の記録からみた2011年東北地方太平洋沖地震の津波波源

Tsushima, H., R. Hino, Y. Osada, D. Inazu, Y. Ito, S. Suzuki, T. Iinuma, Y. Ohta, M. Kido, T. Kubota, H. Fujimoto, S. Sakai, M. Shinohara, T. Kanazawa

SSJ Fall Meeting 2012 Oct 2012 Seismological Society of Japan

P1-71

Tsunami source of the intraslab earthquake (Mw 7.0) on Jul. 10, 2011, in the rupture area of the 2011 Tohoku-Oki earthquake

Kubota, T., R. Hino, D. Inazu, T. Saito, T. Iinuma, S. Suzuki, Y. Ohta, Y. Ito, K. Suzuki

SSJ Fall Meeting 2012 Oct 2012 Seismological Society of Japan

P1-73

宮城県沖における海底圧力観測

Hino, R., T. Kubota, Y. Ito, Y. Ohta, S. Suzuki, D. Inazu, T. Iinuma, M. Kido, Y. Osada, H. Fujimoto, H. Tsushima, Y. Kaneda

118th Meeting of the Geodetic Society of Japan Oct 2012 The Geodetic Society of Japan

Tsunami source of M-7 class earthquakes near the epicenter of the 2011 Tohoku-Oki Earthquake using near-field tsunami data

Kubota, T., R. Hino, D. Inazu, T. Saito, T. Iinuma, S. Suzuki, Y. Ohta, Y. Ito, K. Suzuki

G-COE Program Symposimum 2012, Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspectives Sep 2012 Tohoku University Global COE Program "Global Education and Research Center for Earth and Planetary Dynamics"

Video image of seafloor near the epicenter of the 2011 Great Tohoku Earthquake

Hino, R., S. Suzuki, T. Kubota, Y. Ito, H. Fujimoto

JpGU Meeting 2012 May 2012 Japan Geoscience Union

SSS39-P05

Tsunami source model of the largest foreshock on March 9th of the 2011 Tohoku-Oki earthquake

Kubota, T., D. Inazu, Y. Ito, S. Suzuki, T. Saito, K. Suzuki, R. Hino

JpGU Meeting 2012 May 2012 Japan Geoscience Union

SSS39-07