Figure 4
From: Systematic monitoring of instrumentation health in high-density broadband seismic networks
Comparison between waveforms observed at a target station and multiple reference ones. (a) Comparison between waveforms observed at TYS (red) and surrounding reference (black and blue) stations due to an M W 7.1 earthquake in the Solomon Islands in 2010. Blue solid lines are waveforms observed at TMR. Blue broken lines represent analyzed surface-wave portions. Blue and black dots on the lower side of each waveform trace are lag time errors, τ error, for TMR and the others, 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), TMR (blue triangle), and the other reference stations (black triangles). Open triangles are stations which are not used for the evaluation of TYS at this event time.