The energy released by an earthquake occurs in the form of either volcanic eruptions or better yet, seismic waves. There is no radiation in earthquake except if it destroys nuclear power plants. Earthquakes are also the reason why long ago, there is a continental drift long ago wherein seismic, volcanic, and geothermal activity are found along imagined plate boundaries, the plates were actually rubbing against each other as evidence is seen on the formed mountain ranges And there is paleomagnetism, magnetic field placement in the layers of the rock are present.