The seismograms of the double earthquakes occured in Mugello graben

Ml 3.0 Vernio earthquake and Ml 3.1 Barberino del Mugello earthquake, were recorded by the amateur seismic station of Modena. The seismic station has two seismographic units of Raspberry and Dolquake network.

The seismogram recorded along the EHN channel was filtered 3-8Hz and integrated to obtain the displacement. The two seismograms are comparable as a function of time and seismic phases.

The seismogram of Raspberry station in Modena city. The M 3.0 Vernio Vernio earthquake with seismic phases P and S are show.

The seismogram of Dolquake station in Modena city. The M 3.0 Vernio Vernio earthquake with seismic phases P and S are show.

Two seismic signal show (with some difficulty) the recording of two earthquakes that occurred in sequence at a short time interval. The two seismic signal are superimposed as shown in the seismogram interpretation.