Preliminary Early Report on the M7.8 - 53km NNE of Amberley, New Zealand of 13/11/2016 11:02:56 (UTC) tsunami (version 0.1)
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

A magnitude of 7.8 earthquake occurred in North Canterbury, New Zealand on November 13, 2016 at 11:02:56 UTC. This earthquake occurred as the result of shallow oblique-reverse faulting on or near the boundary between the Pacific and Australia plates in South Island, New Zealand (USGS).

Preliminary Tsunami simulation results

Updated at Mon Apr 14 10:00:00 2016 (JST)

Initial conditions

Latitude: 42.757 deg

Longitude: 173.077 deg

Focal Depth: 15 (km)

Estimated Magnitude: 7.8

Parameters for simulation.

Length: 164.0 (km)

Width: 75.0 (km)

Slip: 1.6 (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 spherical coordinates with bathymetry/topography grid data of 3 arc-min from GEBCO.

Governing Equation : Linear Shallow Water Equations

Numerical Scheme : Leap-frog Finite Difference Method

Spatial Grid Size : 3 arc-min

Tsunami propagation

Maximum inundation heights

Click on the image to enlarge