Figure 2
From: Systematic monitoring of instrumentation health in high-density broadband seismic networks
Comparison between waveforms observed at a target station and a reference one. (a) Comparison between waveforms observed at TYS (red) and IYG (black) due to an M W 7.1 earthquake in the Solomon Islands in 2010. Blue broken lines represent analyzed surface-wave portions. Cross-correlation coefficients as a function of IYG delay against TYS are on the lower side of each waveform trace. Black dots and red vertical lines represent maximum cross-correlation coefficients and synthetic lag times, τ syn, respectively. (b) Map of TYS (target station, red triangle) and the event location (yellow star). The mechanism solution is also shown. (c) Map of TYS (target station, red triangle) and IYG (reference station, black triangle). Vectors represent opposite directions of back azimuths.