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What causes an Earthquake? Video Lecture | Science Class 8
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FAQs on What causes an Earthquake? Video Lecture - Science Class 8
| 1. What causes an earthquake? |  |
Ans. An earthquake is caused by the sudden release of energy in the Earth's crust, resulting in seismic waves. This release of energy is often caused by the movement of tectonic plates, volcanic activity, or human-induced activities like mining or reservoir-induced seismicity.
| 2. How do tectonic plates cause earthquakes? | |
Ans. Tectonic plates are large sections of the Earth's crust that float on the semi-fluid layer beneath them. When these plates move, they can create stress and build up energy along their boundaries. When the stress becomes too great, the energy is released in the form of an earthquake.
| 3. Can earthquakes be predicted? | |
Ans. While scientists have made progress in understanding earthquakes, accurately predicting when and where they will occur is still not possible. However, scientists can estimate the likelihood of earthquakes happening in certain areas based on historical data and the presence of active fault lines.
| 4. Are all earthquakes caused by natural processes? | |
Ans. No, not all earthquakes are caused by natural processes. Some earthquakes can be triggered by human activities, such as mining, hydraulic fracturing (fracking), or the filling of reservoirs behind large dams. These human-induced earthquakes are generally smaller in magnitude compared to natural earthquakes.
| 5. Can earthquakes be beneficial in any way? | |
Ans. While earthquakes are often associated with destruction and loss of life, they can also have some beneficial effects. Earthquakes can release stress along fault lines, preventing larger earthquakes in the future. Additionally, earthquakes can create valuable geological formations like hot springs or mineral deposits, which can be beneficial for certain industries like geothermal energy or mining.
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Nov 23, 2024 Last updated |
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