The devastating earthquake that struck Japan earlier this year was powerful enough to slightly alter the pull of gravity under the affected area, scientists now find.
Anything that has mass has a gravity field that attracts objects toward it. The strength of this field depends on a body’s mass. Since the Earth’s mass is not spread out evenly, this means its gravity field is stronger in some places and weaker in others.
The magnitude 9.0 Tohoku-Oki temblor in March was the most powerful earthquake to hit Japan and the fifth-most powerful quake ever recorded.
Read the rest of the story: Japan’s earthquake actually altered Earth’s gravity, scientists find.