Preliminary Early Report on the 37km ESE of Namie, Japan tsunami
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

A magnitude of 7.3 earthquake occurred 37km ESE of Namie, Japan on November 22, 2016 at 20:59:49.010 UTC (USGS). We have simulated the tsunami generated using a focal mechanism according to USGS.

Preliminary Tsunami simulation results

Updated at Tue Nov 22 06:27:48 2016

  • Initial conditions
  • Latitude: 37.3 deg
    Longitude: 141.5 deg
    Focal Depth: 11.00 (km)
    Estimated Magnitude: 7.3
    Parameters for simulation. Estimated from Papazachos(2004)
    Length: 70.0 (km)
    Width: 45.0 (km)
    Slip: 1.0 (m)
    The star shows the location of the epicenter. Click on the image to enlarge.

  • Propagation simulation
  • Tsunami numerical modeling is performed by using linear shalllow water theory on cartesian coordinates with bathymetry/topography grid data of 30 arc-sec from GEBCO.

    Governing Equation : Linear Shallow Water Equations
    Numerical Scheme : Leap-frog Finite Difference Method
    Spatial Grid Size : 30 arc-sec

    Tsunami propagation

  • Maximum inundation heights
  • Click on the image to enlarge

  • Near Sea Level Stations:

    Name
    Aburatsubo
    Ayukawa
    Choshi_Port
    DART21346
    DART21347
    DART21348
    Hachijojima_Kounominato
    Hachinohe_Port
    Ishinomaki
    Ito
    Kamaishi
    Kashima
    Katsuura
    Keihin_Port
    Kouzushima
    Kuji
    MERA
    Miyakejima_Ako
    Miyakejima_Tsubota
    Miyako
    Mutsu-Ogawara
    Oarai
    Odawara
    Ofunato
    Okada
    Onahama
    Sendai-Shiogama_Port
    Soma
    Yokohama
    Yokosuka

    News related to the event

    CNN
    BBC

    References

  • Mw 7.3 - 37km ESE of Namie, Japan (USGS Earthquake Hazards Program)

  • Contact (Laboratory of Remote Sensing and Geoinformatics for Disaster Management)

  • Bruno Adriano, JSPS Fellow Researcher (adriano@irides.tohoku.ac.jp)
  • Erick Mas, Associate Professor (mas@irides.tohoku.ac.jp)
  • Shunichi Koshimura, Professor (koshimura@irides.tohoku.ac.jp)
  • Other useful links

  • International Research Institute of Disaster Science, Tohoku University (IRIDeS)
  • Pacific Tsunami Warning Center (PTWC)