What are the strongest earthquakes ever recorded and which part of the earth moves during earthquakes?
The earthquake of May 22, 1960, that struck the town of Valdivia in southern Chile is the most powerful ever recorded and has become known as the Great Chilean Earthquake. It is thought to have measured 9.5 on the moment magnitude scale (MMS). The tectonic plates divide the Earth's crust into distinct "plates" those are always slowly moving. Earthquakes are concentrated along these plate boundaries.
Let us analyze the change in the axis of rotation of the Earth after the strongest earthquakes. https://www.emsc-csem.org/
Attached is a graph of changes in the coordinates of the Earth's rotation axis. https://hpiers.obspm.fr/
This is the strongest earthquake in the solid shell of the Earth:
Magnitude Mw 9.0
NEAR EAST COAST OF HONSHU, JAPAN
Date time 2011-03-11 05:46:23.0 UTC
Location 38.30 N ; 142.50 E
Depth 22 km
This is the strongest earthquake in the liquid shell of the Earth.
Magnitude Mw 8.3
Region SEA OF OKHOTSK
Date time 2013-05-24 05:44:48.0 UTC
Location 54.91 N ; 153.34E
Depth 598 km
The dates of these earthquakes are shown by arrows.
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