Fig. 5
From: Sources of seismic noise in an open-pit mining environment
Examples of the seismic signals generated by moving vehicles (a) 2023-05-04 (12:45 UTC) Vehicle moving to the SW at 20–25 km/h (green arrow), followed by the recordings of two quarry blasts (red arrows, one of them reproduced in Figure 3a). (b) 2023-05-04 (09:00 UTC) Slow vehicles in opposite direction, moving at speeds below 10 km/h. (cyan arrow to the NE, blue arrow to the SW). (c) 2023-03-13 (10:00 UTC) slow moving vehicles in both directions (light and dark purple arrows). Lower panels show the waveform and the spectrogram for station ST20. Seismic traces have been filtered between 1 and 40 Hz.
