Scivillage.com Casual Discussion Science Forum

http://metro.co.uk/2016/11/14/mysterious...k-6256459/

Earthquake lights have been reported during earthquakes since ancient times, but scientists still aren't agreed on whether they are real, let alone on what causes them.

Is there any possible connection between the earthquake light and aurora light?

http://www.webexhibits.org/causesofcolor/4D.html

Quote:Atomic oxygen is responsible for the two main colors of green (wavelength of 557.7 nm) and red (630.0 nm). Nitrogen causes blue and deep red hues.