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A device that records ground movements caused by seismic waves as they move through Earth
The measurement of an earthquake's strength based on seismic waves and movement along faults
The process by which an earthquake's violent movement suddenly turns loose soil into liquid mud
A scale that rates earthquakes according to their intensity and how much damage they cause. Rated from I to XII. Not precise. Earthquake can have many different ratings, depending upon how far away from the epicenter it is rated.
A scale that rates seismic waves as measured by a particular type of mechanical seismograph. Works well for small, nearby earthquakes, but not well for all earthquakes.
Moment Magnitude Scale
A scale that rates earthquakes by estimating the total energy released by an earthquake. Works well for all earthquakes.
A type of fault where the hanging wall slides downwards. Tension occurs. Happens at divergent boundaries.
A type of fault where the hanging wall slides upwards. Compression occurs. Happens at convergent boundaries.
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