Geography, asked by ali5540071, 1 month ago

Explain what happens during an earth quakes and list the steps involved in chronological order?

Answers

Answered by komal0412
0
An earthquake is caused by a sudden slip on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

In California there are two plates - the Pacific Plate and the North American Plate. The Pacific Plate consists of most of the Pacific Ocean floor and the California Coast line. The North American Plate comprises most the North American Continent and parts of the Atlantic Ocean floor. The primary boundary between these two plates is the San Andreas Fault. The San Andreas Fault is more than 650 miles long and extends to depths of at least 10 miles. Many other smaller faults like the Hayward (Northern California) and the San Jacinto (Southern California) branch from and join the San Andreas Fault Zone.

The Pacific Plate grinds northwestward past the North American Plate at a rate of about two inches per year. Parts of the San Andreas Fault system adapt to this movement by constant "creep" resulting in many tiny shocks and a few moderate earth tremors. In other areas where creep is NOT constant, strain can build up for hundreds of years, producing great earthquakes when it finally releases.
Answered by ritikamaheshwari2007
0

Answer :

. P wave

These waves are of a higher frequency than surface waves. The first kind of body wave is the p wave or primary wave. This is the fastest kind of seismic wave and, consequently, the first to 'arrive' at a seismic station. The P wave can move through solid rock and fluids, like water are the liquid layers of the earth.

Explanation:

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