Fig. 15From: Tools for the efficient analysis of surface waves from active and passive seismic data: exploring an NE-Italy perilagoon area with significant lateral variationsBeligna#1—western area (HS2): same data as for Fig. 13 (HS1). The HVSR peak at about 2.5 Hz (not present at site#1) is due to the presence of superficial very soft (peat-like) sedimentsBack to article page