Earth and Planetary Science
EPS Atmosphere, Oceans, and Climate

NOV 2005 - The deterministic nature of earthquake rupture

In a paper recently published in Nature (reprint) Erik Olson and Richard Allen report a scaling relation between the frequency content of the first few seconds of energy radiated from an earthquake rupture and its magnitude. These characteristics can be used to estimate the magnitude before the rupture is complete and provide a basis for an earthquake alarm system.