Question

Spreading centers have ________ earthquakes, while trenches have ________ earthquakes.

Answer 1

Spreading centers have shallow earthquakes, while trenches have deep earthquakes.

• Earthquake is a term used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip, or by volcanic or magmatic activity, or other sudden stress changes in the earth
• simply An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.
• mainly Shallow earthquakes are between 0 and 70 km deep and are mainly associated with  mid-ocean ridges, with mountain ranges in the interior of the continents of Europe and Asia, and with the mountains and ocean trenches that surround the Pacific Ocean.
• The immediate cause of most shallow earthquakes is the sudden release of stress along a fault rupture (crack) in the earth's crust.

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