The difference of a decimal for a tsunami

Off the coast of Chile a strong shallow earthquake triggered a tsunami. Warnings have been going out to Chile, Peru, Hawaii and New Zealand.

The first estimation of the energy of the earthquake was at M7.9 but was then corrected to 8.3. This correction results in an update of the tsunami predictions. I created this animation from the NOAA data.

So a change of .4 in Magnitude resulted in this significant change of tsunami propagation forecast.

 

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... is a geophysicist by heart. I work in seismic interpolation. My interest extend to data security, software engineering, geology and science comm. After work I love to go rock climbing and lift some heavy weights. In the evening I endulge in board games with friends and my wonderful partner. The Way of the geophysicist.
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