Blue line (Marineford's height) is 120px = 364.03m.
Red line (Tsunami's height) is 437px = 1325.67m.
About 300m higher than the previous result.
Mw=1.5667*Log(H) + 7.0781
We plug height.
Mw=1.5667*Log(1325.67) + 7.0781
The result is 11.97.
We plug it here...
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