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Tsunami Animation: Tohoku, Japan 2011 (Mercator)

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Offentliggjort på 19 Sep 2020 / In Geografi

This animation shows how PTWC's real-time tsunami forecast model, RIFT, predicts the behavior of the tsunami following the 9.0 magnitude earthquake offshore of the Tōhoku-Oki region, Japan, on 11 March 2011. This version uses the USGS finite fault model (link below) as the source mechanism for the tsunami model, therefore the animation begins in "slow motion" to show the details of how the tsunami starts. The animation covers a 48-hour period finishing with an "energy map" showing the forecasted maximum heights of open-ocean tsunami waves over that time period, followed with the forecasted tsunami runup on the coasts. If you look carefully you will see not only the waves leaving Japan, but also the reflected waves leaving South America after about 23 hours.

For a "rotating globe" version, please see: http://youtu.be/feBtPsJH25c

For the earthquake and its aftershocks, please see: http://youtu.be/3r-JVx8yMpw

Finite fault model: http://earthquake.usgs.gov/ear....thquakes/eqinthenews

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