Figure 2
From: Long Duration of Ground Motion in the Paradigmatic Valley of Mexico
(a) Observed velocity seismograms in two different frequency bands at nine broadband seismic stations for a M3.4 earthquake with 4 km depth (see Fig. 1). Records are aligned with the P-wave arrival and scaled with the factors given for each trace. Notice the long seismic records in the lake-bed stations. (b) Observed and modeled durations of the strong shaking phase for f < 1 Hz. The corresponding synthetic seismograms are shown in Figure A2.
