Fig. 13.From: Rapid magnitude determination from peak amplitudes at local stationsDifferences of displacement magnitude for assumed epicenters from that for the estimated epicenter (the cross) of the 2011 off the Pacific coast of Tohoku earthquake. The closest ten stations to the assumed epicenter are used to calculate the magnitude. Epicenters are assumed inside a contour of the 5-meter slip estimated by Yoshida et al. (2011). The circles indicate the station locations.Back to article page