Pure and Applied Geophysics

, Volume 174, Issue 8, pp 3249–3273

A Response Function Approach for Rapid Far-Field Tsunami Forecasting

Article

Abstract

Predicting tsunami impacts at remote coasts largely relies on tsunami en-route measurements in an open ocean. In this work, these measurements are used to generate instant tsunami predictions in deep water and near the coast. The predictions are generated as a response or a combination of responses to one or more tsunameters, with each response obtained as a convolution of real-time tsunameter measurements and a pre-computed pulse response function (PRF). Practical implementation of this method requires tables of PRFs in a 3D parameter space: earthquake location–tsunameter–forecasted site. Examples of hindcasting the 2010 Chilean and the 2011 Tohoku-Oki tsunamis along the US West Coast and beyond demonstrated high accuracy of the suggested technology in application to trans-Pacific seismically generated tsunamis.

Keywords

Tsunami forecast DART station pulse response function source inversion boundary value problem 

Supplementary material

24_2017_1612_MOESM1_ESM.pdf (1.5 mb)
Supplementary material 1 (pdf 1553 kb)

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.NorthWest Research AssociatesBellevueUSA
  2. 2.University of Alaska FairbanksFairbanksUSA
  3. 3.NOAA/NWS/Pacific Tsunami Warning CenterHonoluluUSA

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