TeachMeFinance.com - explain Harmonic Tremor
Harmonic Tremor The term 'Harmonic Tremor' as it applies to the area of volcanos can be defined as ' Continuous rhythmic earthquakes in the Earth's upper lithosphere that can be detected by seismographs. Harmonic tremors often precede or accompany volcanic eruptions. A continuous release of seismic energy typically associated with the underground movement of magma. It contrasts distinctly with the sudden release and rapid decrease of seismic energy associated with the more common type of earthquake caused by slippage along a fault'.
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