Seismic Parameters of the Earthquake

February 4, 2018

The 20th of May of 2012, an earthquake ocurred in the North of Italy at 04:03:53 local time (02:03:53 UTC time) in the Region of Emilia-Romagna. According to the Istituto Nazionale di Geofisica e Vulcanologia (INGV) the magnitude of the event was Mw 5.9 and the hypocentral depth 6.3 km.

The earthquake occurred at 7 km from Finale Emilia, 36 km from Bologna, 69 from Parma and 173 from Milan. Figure 1 shows the position of the epicentre according to INGV and the European-Mediterranean Seismological Centre (EMSC).

Figure 1. Epicenter of the earthquake of May 20th of 2012, from URL: http://www.emsc-csem.org/Images/EVID/26/267/267440/267440.regional.jpg – last accessed on 23-05-2012

Table 1 reports the seismic parameters of the event of May 20th 2012 given by various institutions.

Table 1

Institutions	Magnitude	Scalar Seismic Moment	Latitude	Longitude	Depth
INGV	M_w 5.9	6.59^24 dyn-cm	44.89°N	11.23°E	6.3 km
CSEM (EMSC)	M_w 6.1		44.90°N	11.24°E	10 km
USGS	M_w 6.0	10^18 N-m	44.800°N	11.192°E	5.1 km
CMT	M_w 6.1	10^25 dyn-cm	44.93N	11.33E	12 km
GFZ	M_w 6.1	10^18 N-m	44.91°N	11.24°E	10 km
AZUR¹	M_w 6.2	2.27^18 N-m	44.812°N	11.208°E	7 km (max

1 Location obtained by NEIC.