Earthquake lights: Mechanism of electrical coupling of Earth’s crust to the lower atmosphere

Jaroslav Jansky
Co-seismic luminescence, commonly referred to as Earthquake lights (EQLs), is an atmospheric luminous phenomenon occurring before and during strong earthquakes. We utilize the assumption that strong currents are produced inside the Earth during earthquakes and model the current and field distribution inside and above the Earth to find the conditions where electrical discharges can appear. The simulation results quantify the effects of source currents for various configurations of current dipoles inside the Earth. The results...
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