There are different magnitude scales used to measure earthquakes, ML (local magnitude, up to 600 kilometres away), MB (body ...

The first of these arrived in Yellowstone ~9 hours after the eruption—moving at the speed of sound, which is much slower than the speed of earthquake waves through the ground—and is evident on both ...

Earthquakes are monitored using a variety of tools and methods, including seismometers, GPS stations, and online mapping systems. Seismometers detect ground motion caused by seismic waves, providing ...

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