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Earthquakes
Focus
Focus definition: The underground point where an earthquake starts.
Related Terms
Aftershock
Earthquake
Epicenter
Fault
Liquefaction
Magnitude
Mercalli Scale
Moment Magnitude Scale
Normal Fault
Primary Wave
Reverse Fault
Richter Scale
Secondary Wave
Seismic Gap
Seismic Wave
Seismogram
Seismograph
Stress
Strike Slip Fault
Surface Wave
Tsunami
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