Los Angeles (CNN) -- A magnitude 3.8 earthquake in southern California struck San Bernardino County near the San Andreas Fault Saturday morning, but no major damage was reported, authorities said.

CNN: Earthquake registering 3.8 strikes southern California

Extrapolating from Dr Freund's laboratory experiments, the strain in a real-life geological fault such as the San Andreas could, as it shifted, generate hundreds of thousands of amperes per cubic kilometre in a fluctuating pattern that would cause very low frequency radio waves to be emitted, thus disrupting the ionosphere.

ECONOMIST: Predicting earthquakes