Fig. 2
From: Rapid estimation of tsunami earthquake magnitudes at local distance
Example seismic waveforms. a Original seismogram of the 2003 Tokachi-oki earthquake recorded at Urahoro station with a velocity-type strong-motion seismometer. b Displacement record (black curve) obtained after instrumental correction and integration of the original record shown in a. c Integrated displacement record (black curve) obtained from the original record shown in a. (d) Bandpass (200–400 s) filtered displacement record (black curve) obtained from the original record shown in a. The red curves in b–d show synthetic records for the finite fault model of U. S. Geological Survey (2020)