Preliminary Early Report on the 212km W of Ferndale, California tsunami
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

On 09/22/2017 19:50:16 a Mw 5.8 magnitude earthquake occurred.

Preliminary Tsunami simulation results

Updated at Sat Sep 23 05:27:58 2017

  • Initial conditions

    • Latitude: 40.41 deg
    Longitude: -126.75 deg
    Focal Depth: 12.00 (km)
    Estimated Magnitude: 5.8
    Parameters for simulation. Estimated from Papazachos(2004)
    Length: 10.00 (km)
    Width: 14.72 (km)
    Slip: 0.09 (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

    News related to the event

    CNN
    BBC

    References

  • Mw 5.8 - 212km W of Ferndale, California (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)