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.

Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake strikes. Scientists used the Richter Scale for many years but now largely ...

VANCOUVER, B.C. (KOMO) — The North Pacific by British Columbia's Vancouver Island was rattled by a series of earthquakes Thursday morning, the largest quake measured as 6.4 magnitude. According to the ...

According to a geological survey report, a magnitude 6.2 earthquake struck near the coastal side of Peru on Sunday, December ...

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 ...

MILLEDGEVILLE, Ga. — No, it wasn’t an early April Fools’ Day prank, a low-magnitude earthquake really did rumble the area late Sunday night. The United States Geological Survey (USGS) reported that a ...