Mag 5.3 Earthquake near Ovalle, Chile Seen on USGS, Seismon, and Terramon USGS - Mag 5.3 EQ at 15:05 UTC Terramon - Mag 5.1 EQ at 15:00 UTC, Predicted R-Wave of 0.822um/s arrival 15:52 Rise in the BLRMS around 15:17 UTC; Primary microseism peak of 0.1um/s No apparent effect on H1