Question

what is an earthquak?​

Answer 1

An earthquake is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to toss people around and destroy whole cities.

Answer 2

Answer:

Earthquake is the shaking of the earth's surface resulting from the sudden energy release in the lithosphere that creates sesmic waves. Earthquakes are mostly caused by the sudden movement of tectonic plates against each other. Earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear tests.