Preliminary Early Report on the 281km ESE of Kamaishi, Japan tsunami
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

On 09/20/2017 16:37:16 a Mw 6.1 magnitude earthquake occurred.

Preliminary Tsunami simulation results

Updated at Thu Sep 21 02:36:17 2017

  • Initial conditions
  • Latitude: 37.98 deg
    Longitude: 144.67 deg
    Focal Depth: 10.00 (km)
    Estimated Magnitude: 6.1
    Parameters for simulation. Estimated from Papazachos(2004)
    Length: 14.62 (km)
    Width: 18.24 (km)
    Slip: 0.13 (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
    DART21348
    DART21346
    DART21347
    DART21418

    News related to the event

    CNN
    BBC

    References

  • Mw 6.1 - 281km ESE of Kamaishi, Japan (USGS Earthquake Hazards Program)

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

  • Erick Mas, Associate Professor (mas@irides.tohoku.ac.jp)
  • Bruno Adriano, JSPS Fellow (adriano@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)