Question

what is earthquake????? ​

Answer 1

Answer:

Earthquakes are caused by a sudden release of violent ground energy caused either by the shifting of the earth’s crust or volcanic/magmatic activity. Most earthquakes occur when two sides of a fault slide past each other. The crust may either be being compressed, pulled apart, moving sideways or a combination of these. The resulting seismic waves are felt as earthquakes.

Earthquakes occur frequently in New Zealand due to its position upon the boundary of two plates of the earth’s crust, the Pacific and Australian plates. New Zealand sits on the Pacific “Ring of Fire”; a zone of intensified earthquake and volcanic activity that straddles the margins of land around the Pacific plate. Over 15,000 earthquakes are recorded every year in New Zealand, although only 100 - 150 of these are actually felt. The majority of New Zealand’s earthquakes occur along the main fault line which stretches in a wide band from Fiordland to the East Cape. New Zealand’s mountain ranges have been formed by the tremendous power of these fault movements.

Answer 2

Answer:

The violent shaking and trembling of the Earth's surface is called an earthquake....