Geophysical Research Letters


The 11 March 2011 Tohoku-Oki Earthquake and Tsunami

Geophysical Research Letters, vol. 39, no. 7, 2012

  1. Atmospheric Science

    1. Top of page
    2. Atmospheric Science
    3. Oceans
    4. Solid Earth
    5. Space Sciences
    1. You have full text access to this OnlineOpen article
      Hemispheric dispersion of radioactive plume laced with fission nuclides from the Fukushima nuclear event

      Shih-Chieh Hsu, Chih-An Huh, Chuen-Yu Chan, Shuen-Hsin Lin, Fei-Jan Lin and Shaw Chen Liu

      Version of Record online: 12 JAN 2012 | DOI: 10.1029/2011GL049986

      Key Points

      • A round of hemispheric transport for Japan radiation clouds is about 18 days
      • The first two waves of radiation clouds transported at distinctive altitudes
      • A schematic model is constructed for the hemispheric dispersion
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      Atmospheric behavior, deposition, and budget of radioactive materials from the Fukushima Daiichi nuclear power plant in March 2011

      Yu Morino, Toshimasa Ohara and Masato Nishizawa

      Version of Record online: 15 SEP 2011 | DOI: 10.1029/2011GL048689

      Key Points

      • We simulated the deposition of I-131 and Cs-137 from Fukushima in March 2011
      • The model reproduced observed deposition rates over 15 Japanese prefectures
      • About 13% of I-131 and 22% of Cs-137 were deposited over land in Japan
  2. Oceans

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    2. Atmospheric Science
    3. Oceans
    4. Solid Earth
    5. Space Sciences
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      The 2011 Japan tsunami current velocity measurements from survivor videos at Kesennuma Bay using LiDAR

      Hermann M. Fritz, David A. Phillips, Akio Okayasu, Takenori Shimozono, Haijiang Liu, Fahad Mohammed, Vassilis Skanavis, Costas E. Synolakis and Tomoyuki Takahashi

      Version of Record online: 21 JAN 2012 | DOI: 10.1029/2011GL050686

      Key Points

      • Application of LiDAR in post-tsunami survey
      • Tsunami video analysis using PIV
      • Video based tsunami water level time series
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      Survey of 2011 Tohoku earthquake tsunami inundation and run-up

      Nobuhito Mori, Tomoyuki Takahashi, Tomohiro Yasuda and Hideaki Yanagisawa

      Version of Record online: 27 SEP 2011 | DOI: 10.1029/2011GL049210

      Key Points

      • High-density and high quality post tsunami survey data was obtained
      • 40.4 m run-up height was measured
      • Long distance inundation distance is presented
  3. Solid Earth

    1. Top of page
    2. Atmospheric Science
    3. Oceans
    4. Solid Earth
    5. Space Sciences
    1. You have full text access to this OnlineOpen article
      Stress perturbations and seismic response associated with the 2011 M9.0 Tohoku-oki earthquake in and around the Tokai seismic gap, central Japan

      B. Enescu, S. Aoi, S. Toda, W. Suzuki, K. Obara, K. Shiomi and T. Takeda

      Version of Record online: 3 JUL 2012 | DOI: 10.1029/2012GL051839

      Key Points

      • Strong evidence for static stress triggering by Tohoku quake around Tokai gap
      • Positive, but small stress changes by Tohoku quake on the Tokai source
      • Increased triggering hazard in and around the Tokai gap
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      Tidal triggering of earthquakes prior to the 2011 Tohoku-Oki earthquake (Mw 9.1)

      Sachiko Tanaka

      Version of Record online: 7 APR 2012 | DOI: 10.1029/2012GL051179

      Key Points

      • Tidal triggering prior to the 2011 Tohoku-Oki earthquake is observed
      • Triggering occurred in and near the initial rupture site of the mainshock
      • Influence existed over a decade-long period before the Tohoku-Oki earthquake
    3. You have full text access to this OnlineOpen article
      The March 11, 2011 Tohoku-oki earthquake and cascading failure of the plate interface

      Eric Kiser and Miaki Ishii

      Version of Record online: 2 MAR 2012 | DOI: 10.1029/2012GL051170

      Key Points

      • The 2011 Mw 9.0 Tohoku-oki earthquake has frequency-dependent rupture behavior
      • Near-trench ruptures updip and south of the epicenter may be tsunami sources
      • Seismicity surrounding the mainshock gives insights into future seismic hazards
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      Normal-faulting earthquakes beneath the outer slope of the Japan Trench after the 2011 Tohoku earthquake: Implications for the stress regime in the incoming Pacific plate

      Koichiro Obana, Gou Fujie, Tsutomu Takahashi, Yojiro Yamamoto, Yasuyuki Nakamura, Shuichi Kodaira, Narumi Takahashi, Yoshiyuki Kaneda and Masanao Shinohara

      Version of Record online: 31 JAN 2012 | DOI: 10.1029/2011GL050399

      Key Points

      • OBS observations for outer trench slope earthquakes after the 2011 Tohoku EQ
      • Normal-faulting earthquakes in oceanic crust and mantle of the incoming plate
      • Stress regime in the Pacific plate was changed by the 2011 Tohoku earthquake
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      A Rayleigh wave back-projection method applied to the 2011 Tohoku earthquake

      Daniel Roten, Hiroe Miyake and Kazuki Koketsu

      Version of Record online: 18 JAN 2012 | DOI: 10.1029/2011GL050183

      Key Points

      • A back-projection method of Rayleigh waves is introduced and validated
      • We characterize the Tohoku rupture process from the identified emitters
      • Long-period (13-100 s) LR waves were emitted from within 100 km of the trench
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      Joint inversion of strong motion, teleseismic, geodetic, and tsunami datasets for the rupture process of the 2011 Tohoku earthquake

      Yusuke Yokota, Kazuki Koketsu, Yushiro Fujii, Kenji Satake, Shin'ichi Sakai, Masanao Shinohara and Toshihiko Kanazawa

      Version of Record online: 21 DEC 2011 | DOI: 10.1029/2011GL050098

      Key Points

      • We made the source model reflecting all aspects of the 2011 Tohoku earthquake
      • We performed joint inversion of seismic, geodetic, and tsunami datasets
      • The main rupture included both deep Miyagi-oki area and compact shallow area
    7. You have free access to this content
      Rupture process of the 9 March, 2011 Mw 7.4 Sanriku-Oki, Japan earthquake constrained by jointly inverting teleseismic waveforms, strong motion data and GPS observations

      Guangfu Shao, Chen Ji and Dapeng Zhao

      Version of Record online: 5 NOV 2011 | DOI: 10.1029/2011GL049164

      Key Points

      • This earthquake is a typical M7 event in terms of kinematic parameters
      • It did not break the hypocenter region of the M9 Tohoku earthquake
      • It may have broken a relatively weaker patch within a strongly coupled asperity
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      Tsunami source of the 2011 Tohoku-Oki earthquake, Japan: Inversion analysis based on dispersive tsunami simulations

      Tatsuhiko Saito, Yoshihiro Ito, Daisuke Inazu and Ryota Hino

      Version of Record online: 3 NOV 2011 | DOI: 10.1029/2011GL049089

      Key Points

      • Tsunami analysis reveals the source of the 2011 Tohoku-Oki earthquake
      • Dispersive wave and nearfield records provide high-resolution source estimation
      • Large slip occurred at a deep location and a shallow location near the trench
    9. You have free access to this content
      Atmospheric boundary waves excited by the tsunami generation related to the 2011 great Tohoku-Oki earthquake

      Nobuo Arai, Makiko Iwakuni, Shingo Watada, Yuichi Imanishi, Takahiko Murayama and Mami Nogami

      Version of Record online: 1 NOV 2011 | DOI: 10.1029/2011GL049146

      Key Points

      • Atmospheric pressure changes excited by tsunami generation were observed
      • Observed atmospheric waves are clearly identified as the boundary waves
      • Observed atmospheric waves preserved the information on the tsunami source
    10. You have full text access to this OnlineOpen article
      Compressive sensing of the Tohoku-Oki Mw 9.0 earthquake: Frequency-dependent rupture modes

      Huajian Yao, Peter Gerstoft, Peter M. Shearer and Christoph Mecklenbräuker

      Version of Record online: 28 OCT 2011 | DOI: 10.1029/2011GL049223

      Key Points

      • We use the compressive sensing method to investigate source locations
      • We find the Tohoku-Oki earthquake has frequency-dependent rupture modes
      • Our results suggest heterogeneous frictional properties at the slab interface
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      Constraints on the long-period moment-dip tradeoff for the Tohoku earthquake

      Victor C. Tsai, Gavin P. Hayes and Zacharie Duputel

      Version of Record online: 25 OCT 2011 | DOI: 10.1029/2011GL049129

      Key Points

      • Reexamination of the moment-dip tradeoff shows that uncertainties can be reduced
      • Suggested station weighting improves inversion results for the Tohoku earthquake
      • Using slab depth data reduces uncertainties in moment for the Tohoku earthquake
    12. You have full text access to this OnlineOpen article
      Rupture process of the 2011 Tohoku-Oki mega-thrust earthquake (M9.0) inverted from strong-motion data

      Wataru Suzuki, Shin Aoi, Haruko Sekiguchi and Takashi Kunugi

      Version of Record online: 20 OCT 2011 | DOI: 10.1029/2011GL049136

      Key Points

      • A large slip is estimated in the shallow part of the fault along the trench
      • The shallow slip contributes to the very low-frequency waveforms
      • The large acceleration may be generated by relatively small slip areas
    13. You have free access to this content
      Modeling near-field tsunami observations to improve finite-fault slip models for the 11 March 2011 Tohoku earthquake

      Y. Yamazaki, T. Lay, K. F. Cheung, H. Yue and H. Kanamori

      Version of Record online: 18 OCT 2011 | DOI: 10.1029/2011GL049130

      Key Points

      • We find finite-source rupture models that match near-field tsunami data
      • We iterate on inversions of seismic/tsunami and geodetic/tsunami rupture models
      • We characterize the slip distribution responsible for large 2011 tsunami
    14. You have free access to this content
      Pore pressure distribution along plate interface that causes a shallow asperity of the 2011 great Tohoku-oki earthquake

      Shingo Yoshida and Naoyuki Kato

      Version of Record online: 28 SEP 2011 | DOI: 10.1029/2011GL048902

      Key Points

      • A possible mechanical origin for shallow strong asperities is proposed
      • Pore collapse assumption leads to likely pore pressure distributions
      • The model may be useful for understanding plate coupling
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      Coseismic gravity changes of the 2011 Tohoku-Oki earthquake from satellite gravimetry

      Koji Matsuo and Kosuke Heki

      Version of Record online: 22 SEP 2011 | DOI: 10.1029/2011GL049018

      Key Points

      • GRACE detected coseisimic gravity changes by 2011 Tohoku-Oki earthquake
      • The third case that GRACE detected coseisimic gravity changes
      • Coseismic gravity change roughly scales with the seismic moment
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      The dynamics of a seismic wave field: Animation and analysis of kinematic GPS data recorded during the 2011 Tohoku-oki earthquake, Japan

      Ronni Grapenthin and Jeffrey T. Freymueller

      Version of Record online: 22 SEP 2011 | DOI: 10.1029/2011GL048405

      Key Points

      • Visualization/analysis of dynamic and static deformation due to earthquakes
      • Qualitative assessment of earthquake parameters from map view representation
      • Outline of method for displacement assisted earthquake early warning
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      Principal horizontal stress orientations prior to the 2011 Mw 9.0 Tohoku-Oki, Japan, earthquake in its source area

      Weiren Lin, Saneatsu Saito, Yoshinori Sanada, Yuzuru Yamamoto, Yoshitaka Hashimoto and Toshiya Kanamatsu

      Version of Record online: 15 SEP 2011 | DOI: 10.1029/2011GL049097

      Key Points

      • Determined stress orientation before the Tohoku earthquake in its source area
      • Showed that stress regime may have changed during the Tohoku earthquake sequence
      • Stress orientations in seismically active zone and in aseismic zone differed
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      Inversion of high-rate (1 sps) GPS data for rupture process of the 11 March 2011 Tohoku earthquake (Mw 9.1)

      H. Yue and T. Lay

      Version of Record online: 8 SEP 2011 | DOI: 10.1029/2011GL048700

      Key Points

      • Inverts high-rate GPS ground motions for finite-faulting slip
      • Obtains a robust slip model for the 2011 Tohoku earthquake
      • Presents new inversion procedure for seismo-geodetic inversion
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      Geodetic slip model of the 2011 M9.0 Tohoku earthquake

      Fred F. Pollitz, Roland Bürgmann and Paramesh Banerjee

      Version of Record online: 1 SEP 2011 | DOI: 10.1029/2011GL048632

      Key Points

      • We assemble a comprehensive GPS dataset of the event
      • A single slip model fits both near-field and far-field data well
      • Estimated rupture overlaps many historical M > 7 rupture areas
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      A window into the complexity of the dynamic rupture of the 2011 Mw 9 Tohoku-Oki earthquake

      Lingsen Meng, Asaf Inbal and Jean-Paul Ampuero

      Version of Record online: 24 AUG 2011 | DOI: 10.1029/2011GL048118

      Key Points

      • Low and high frequency earthquake slip can be spatially complementary
      • A single earthquake can involve a diversity of rupture styles
      • The deeper portions of a megathrust fault are rheologically heterogeneous
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      Seismic evidence for reactivation of a buried hydrated fault in the Pacific slab by the 2011 M9.0 Tohoku earthquake

      Junichi Nakajima, Akira Hasegawa and Saeko Kita

      Version of Record online: 24 AUG 2011 | DOI: 10.1029/2011GL048432

      Key Points

      • Seismic imaging of the hydrated oceanic mantle in the Pacific slab
      • Occurrence of aftershocks of the M7.1 intraslab EQ linked to the hydrated mantle
      • Seismic evidence for hydration of the upper ∼15 km of the oceanic mantle
    22. You have free access to this content
      Frontal wedge deformation near the source region of the 2011 Tohoku-Oki earthquake

      Yoshihiro Ito, Takeshi Tsuji, Yukihito Osada, Motoyuki Kido, Daisuke Inazu, Yutaka Hayashi, Hiroaki Tsushima, Ryota Hino and Hiromi Fujimoto

      Version of Record online: 12 AUG 2011 | DOI: 10.1029/2011GL048355

      Key Points

      • Uplift of 5 m was observed on the frontal wedge
      • Displacements of more than 60 m to the east were observed
      • The observations were interpreted as coseismic slip of 80 m
    23. You have free access to this content
      A shallow strong patch model for the 2011 great Tohoku-oki earthquake: A numerical simulation

      Naoyuki Kato and Shingo Yoshida

      Version of Record online: 9 AUG 2011 | DOI: 10.1029/2011GL048565

      Key Points

      • A mechanical model for great earthquake cycle at northern Honshu
      • The model is consistent with past large earthquakes and geodetic observations
      • The model predicts earlier occurrence of M7 class interplate earthquakes
    24. You have free access to this content
      Widespread seismicity excitation throughout central Japan following the 2011 M=9.0 Tohoku earthquake and its interpretation by Coulomb stress transfer

      Shinji Toda, Ross S. Stein and Jian Lin

      Version of Record online: 6 AUG 2011 | DOI: 10.1029/2011GL047834

      Key Points

      • Widespread seismicity excitation observed after 2011 Tohoku mainshock
      • Such an increase was not seen for the 2004 Sumatra and 2010 Chile quakes
      • Seismicity can turn on in nominal stress shadow if diverse local faults exist
    25. You have free access to this content
      Imaging and modeling the ionospheric airglow response over Hawaii to the tsunami generated by the Tohoku earthquake of 11 March 2011

      J. J. Makela, P. Lognonné, H. Hébert, T. Gehrels, L. Rolland, S. Allgeyer, A. Kherani, G. Occhipinti, E. Astafyeva, P. Coïsson, A. Loevenbruck, E. Clévédé, M. C. Kelley and J. Lamouroux

      Version of Record online: 7 JUL 2011 | DOI: 10.1029/2011GL047860

      Key Points

      • Coupling of the ocean surface to the upper atmosphere enables tsunami imaging
      • The first ionospheric signature precedes the modeled ocean tsunami by one hour
  4. Space Sciences

    1. Top of page
    2. Atmospheric Science
    3. Oceans
    4. Solid Earth
    5. Space Sciences
    1. You have full text access to this OnlineOpen article
      Tsunamigenic ionospheric hole

      Yoshihiro Kakinami, Masashi Kamogawa, Yuichiro Tanioka, Shigeto Watanabe, Aditya Riadi Gusman, Jann-Yenq Liu, Yasuyuki Watanabe and Toru Mogi

      Version of Record online: 1 JUN 2012 | DOI: 10.1029/2011GL050159

      Key Points

      • A large depletion of ionospheric plasma appears above tsunami source area
      • A tsunamigenic ionospheric hole occurs only in the large subduction earthquake
      • A dense GPS network will provide the whole of the initial tsunami
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      Mode conversion between Alfvén and slow waves observed in the magnetotail by THEMIS

      J. Du, T. L. Zhang, R. Nakamura, C. Wang, W. Baumjohann, A. M. Du, M. Volwerk, K.-H. Glassmeier and J. P. McFadden

      Version of Record online: 6 APR 2011 | DOI: 10.1029/2011GL046989

      Key Points

      • Wave mode conversion is directly observed in the magnetotail for the first time
      • Change of background magnetic field direction can lead to wave mode conversion
      • Compressional waves result in the flucutuations in plasma

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