Fig. 2.From: Source model for generating strong ground motions during the 2011 off the Pacific coast of Tohoku EarthquakeDisplacement spectra estimated from ground motion records at underground stations on rock from three small events (Event A, Event B, and Event C) used as the empirical Green’s functions. The shadow areas at low-frequencies lower than 0.15 Hz show unreliable frequency ranges that are not used for the simulation.Back to article page