Fig. 4: Source origin inverted from four balloons (left) or four seismic stations (right).
From: Balloon seismology enables subsurface inversion without ground stations

Posterior distributions of source location (a), depth (c) and origin time (e) inverted from four Strateole-2 balloons and (resp. (b), (d), (f)) four seismic stations at similar locations. The true (resp. MAP) values are shown with blue (resp. green) vertical lines.