Figure 1
From: Anatomy of a microearthquake sequence on an active normal fault

Density map of the 1200 microearthquakes located by the ISNet since 2008.
The events are displayed on the map with red circles. The seismicity is concentrated in very limited regions along the 1980 Irpinia earthquake fault zone, where the majority of the recorded sequences occurred. AA’ indicates the vertical cross section reported in Figure 6.