Question about the shape of the earth

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The Earth is not a perfect sphere due to its rotation and the properties of its materials. Unlike a rigid ball, the Earth, being composed of various materials, exhibits a slight bulge at the equator due to centrifugal force from its spin. This bulging effect is more pronounced in less rigid materials, such as jello. Additionally, the uneven distribution of mass across the planet contributes to its irregular shape, resulting in a geoid form rather than a perfect sphere. The interplay of these factors explains why the Earth's shape deviates from a perfect roundness.
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Why is the Earth not perfectly round
 
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if you spin a ball that is not perfectly rigid, it bulges outward slightly at the spin equator. If it were made of jello, it would bulge out quite a lot.
 
The distribution of mass on Earth is not constant, altering the shape of the earth.
 
Thanks.
 
Suggest you checkout this link
http://www.lhup.edu/~dsimanek/scenario/centrip.htm"
 
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Thread 'Mag 7.6 - 73 km ENE of Misawa, Japan, tsunami warning issued'

M 7.6 - 73 km ENE of Misawa, Japan https://earthquake.usgs.gov/earthquakes/eventpage/us6000rtdt/executive 2025-12-08 14:15:11 (UTC) 40.960°N 142.185°E 53.1 km depth It was however fairly deep (53.1 km depth) as compared to the Great Tohoku earthquake in which the sea floor was displaced. I don't believe a tsunami would be significant. https://earthquake.usgs.gov/earthquakes/eventpage/us6000rtdt/region-info
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