Preliminary Early Report on the 71km E of Hualian, Taiwan tsunami
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

On 04/20/2015 01:43:00 a Mw 6.6 magnitude earthquake occurred.

Preliminary Tsunami simulation results

Updated at Mon Apr 20 11:46:10 2015

  • Initial conditions
  • Latitude: 23.90 deg
    Longitude: 122.30 deg
    Focal Depth: 1.00 (km)
    Estimated Magnitude: 6.6
    Parameters for simulation. Estimated from Papazachos(2004)
    Length: 27.54 (km)
    Width: 26.06 (km)
    Slip: 0.28 (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
    naha
    ishig

    News related to the event

    CNN
    BBC

    References

  • Mw 6.6 - 71km E of Hualian, Taiwan (USGS Earthquake Hazards Program)

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

  • Erick Mas, Assistant Professor (mas@irides.tohoku.ac.jp)
  • Bruno Adriano, Ph.D. student (adriano@geoinfo.civil.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)