Fig. 8
From: Sources of seismic noise in an open-pit mining environment
Diurnal and weekly variations of the seismic noise. (a) Seismic amplitude variations as a function of date (radius) and hour of the day (azimuth) for station ST21. Color scale represents the seismic amplitude in dB. Each circle is for one day, with the starting date (2022-12-19) in the center and the last data (2023-05-08) in the outer ring (for reference, white circles mark 10 days intervals). (b) Weekly amplitude variations for the same station and time period from a). Each colored line shows the mean values per week day. Hours are reported in UTC.
