Fig. 3
From: Earthquakes in Switzerland and surrounding regions during 2009
Fault-plane solutions based on first-motion polarities (above) and optimal double-couple moment tensors based on full-waveform inversion (below). All stereographs are lower hemisphere, equal-area projections. Solid circles and shaded quadrants correspond to compressive first motion (up); empty circles and white quadrants correspond to dilatational first motion (down)