Question

What is an earthquake ? why is it called as seismic activity?
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Answer 1

Answer:

Earthquakes can also trigger landslides and occasionally, volcanic activity. In its most general sense, the word earthquake is used to describe any seismic event—whether natural or caused by humans—that generates seismic waves. ... An earthquake's point of initial rupture is called its hypocenter or focus.

Answer 2

Explanation:

Earthquakes can also trigger landslides and occasionally, volcanic activity. In its most general sense, the word earthquake is used to describe any seismic event—whether natural or caused by humans—that generates seismic waves. ... An earthquake's point of initial rupture is called its hypocenter or focus.

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