Earthquakes are usually caused by a shift of rock along a fault line, snapping into a new alignment.
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Fault lines are caused by differential or shear movement, when fault lines slip rapidly energy is released causing an earthquake.
eartquakes
Many strong earthquakes are caused by the movement of tectonic plates along fault lines. This movement creates stress in the Earth's crust, which is eventually released in the form of an earthquake. The sudden release of energy can result in significant ground shaking and damage.
A seismograph and a seismoscope.
earthquakes make volcanoes because of tectonic plates
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Earthquakes are caused by vaults. (Cracks in the earth.) The 2 broken pieces have a reverse tug-of-war. They push against each other and either make a mountain or a depression. If these 2 pieces push against each other really hard, eventually, the energy releases and causes an earthquake with high magnitude.
by studying the earth gravity by studying eartquakes
by studying the earth gravity by studying eartquakes