Question

write and draw about earthquake in detail​

Answer 1

Answer:

An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves.

• Earthquakes are accordingly measured with a seismometer, commonly known as a seismograph.

• The magnitude of an earthquake is conventionally reported using the Richter scale or a related Moment scale (with magnitude 3 or lower earthquakes being hard to notice and magnitude 7 causing serious damage over large areas).

• At the Earth's surface, earthquakes may manifest themselves by a shaking or displacement of the ground.

• Sometimes, they cause tsunamis, which may lead to loss of life and destruction of property.

• An earthquake is caused by tectonic plates getting stuck and putting a strain on the ground.

• The strain becomes so great that rocks give way by breaking and sliding along fault planes.

• Earthquakes may occur naturally or as a result of human activities.

• Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear experiments.

• In its most generic sense, the word earthquake is used to describe any seismic event—whether a natural phenomenon or an event caused by humans—that generates seismic waves.

• Most naturally occurring earthquakes are related to the tectonic nature of the Earth.

• Such earthquakes are called tectonic earthquakes.

• The Earth's lithosphere is a patchwork of plates in slow but constant motion caused by the release to space of the heat in the Earth's mantle and core.

Answer 2

Answer:

What is an earthquake?

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

What causes earthquakes and where do they happen?

The earth has four major layers: the inner core, outer core, mantle and crust. The crust and the top of the mantle make up a thin skin on the surface of our planet.

But this skin is not all in one piece – it is made up of many pieces like a puzzle covering the surface of the earth. Not only that, but these puzzle pieces keep slowly moving around, sliding past one another and bumping into each other. We call these puzzle pieces tectonic plates, and the edges of the plates are called the plate boundaries. The plate boundaries are made up of many faults, and most of the earthquakes around the world occur on these faults. Since the edges of the plates are rough, they get stuck while the rest of the plate keeps moving. Finally, when the plate has moved far enough, the edges unstick on one of the faults and there is an earthquake.