Fig. 12

Seismograms (ground velocity; 0.5 Hz, 4th order, zero-phase Butterworth high-pass filter) of the three Beckenried events of 2012 recorded at station SGT04 (epicentral distance 81 km). The vertical components (left panel) are aligned on the Pg arrival; the E–W components (right panel) are aligned on the Sg arrival. Note the almost identical travel-time differences between the reflections at the Moho (PmP, SmS) and the direct waves (Pg, Sg) for the three events, which are indicative of an essentially identical focal depth. This is a rare example of a sequence of clear and impulsive Pg, PmP, Sg and SmS phases recorded at the same location