Fig. 3: Density plots of the automatic seismic detections for various time periods.
From: Identifying attacks in the Russia–Ukraine conflict using seismic array data
Individual detections are shown by blue (nighttime) and green (daytime) dots. The location of the Malyn seismic array is shown by the white triangles. Each panel is scaled to its maximum value. a, Pre-invasion period from 1 January to 23 February 2022, with a maximum event density of 0.09 events km−2. b, Immediately after the Russian invasion from 24 February to 6 March 2022, with a maximum event density of 0.11 events km−2. c, Period of intense fighting from 7 March to 5 April 2022, with a maximum event density of 0.73 events km−2. d, Period after the reported Russian withdrawal (2 April 2022) from 6 April to 3 November 2022, with a maximum event density of 0.25 events km−2. The grey shaded areas in b and c indicate regions occupied by Russian troops. Scale bars, 50 km.
