Earthquakes and seismic activity often happen with sudden movements underground with tectonic plates. Seismographs are used by scientists to measure the time, location and strength of an earthquake.
Scientists measure both the energy released in an earthquake and its damage. In 1902, Italian scientist Giuseppe Mercalli introduced a scale that measures the intensity of an earthquake based on its ...
Morning Overview on MSN
A magnitude 6.0 earthquake just rattled the Chilean coast 33 km off Valparaíso — 151 people felt the shaking onshore at intensity 5
A magnitude 6.0 earthquake struck offshore Chile late on May 31, shaking buildings across the Valparaiso region and prompting ...
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