Marked Increases in Background Photon Emissions in Sudbury Ontario More than One Week before the Magnitude > 8.0 Earthquakes in Japan and Chile

Daily, minute-to-minute measurements of ground level photon emissions in Sudbury, Ontario Canada displayed con-spicuous increases more than one week before the 2011 M9.0 earthquake in Japan and the 2010 M8.8 earthquake in Chile. Temporal profiles of the antecedent increase and subsequent decline in power densities for the two events were remarkably similar. Antecedent changes for 7.0 < M < 7.9 events during the same period were evident but more subtle. The results suggest the possibility that protracted increases in background photon emissions may precede major (M > 8.0) seismic events anywhere on the planet.