Fig. 4 | Scientific Reports

Fig. 4

From: Waveform cross-correlation analysis and magnitude estimation for the 1887 Ligurian earthquake determined from magnetogram recordings

Fig. 4The alternative text for this image may have been generated using AI.

(a) Synthetic full-wavefield seismograms for scenario S1 described in the text. (b) Simulated seismograms after integration, bandpass filtering and convolution with the magnetometer response, as described in the text. The inset shows the superposition between the processed synthetic seismogram (blue trace) and the digitized H magnetogram recorded at Greenwich (orange trace). In all figures, the traces are conspicuously vertically exaggerated. The dashed lines represent the travel times of body waves (primary, P; secondary, S) and surface waves (Rayleigh, R; Love, L) according to the AK135 seismic reference model.

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