This evening, at 23:48 pm Italian time on August 14, 2018, the National Institute of Geophysics and Volcanology (INGV) localized an earthquake of magnitude ML 4.7 (Mw 4.6), in the province of Campobasso, 6 km south of Montecilfone, at a depth of 19 km.
In the table below, the municipalities within 10 km of the earthquake epicenter.
The event was located in an area of medium-high danger as shown in the seismic hazard map of the national territory with expected accelerations between 0.150 and 0.175 g. The Parametric Catalog of Italian Earthquakes (2015 version) shows immediately south of the epicentral area of this earthquake the 2 events of 31 October and 1 November of the 2002 seismic sequence which severely hit the municipality of San Giuliano di Puglia. On 25 April 2018, another seismic event of magnitude Mw 4.3 occurred in this area near Montecilfone at a depth of 29 km. The earthquake was felt in a large area from the Adriatic coast to the Tyrrhenian coast, in particular in the province of Campobasso, in the neighboring provinces of Abruzzo and Puglia and in a vast area of Campania, as evidenced by the Preliminary map of the effects of the earthquake elaborated from the approximately 436 questionnaires sent to the site www.haisentitoilterremoto.it updated at 00:21 on August 15th.
Map of seismic effect in MCS scale (Mercalli-Cancani-Sieberg) showing the distribution of the effects of the earthquake on the territory as reconstructed from the online questionnaires. The map contains a legend (on the right). The purple star indicates the epicenter of the earthquake, the colored circles refer to the intensities associated with each municipality. The caption above shows the characteristics of the earthquake: date, magnitude (ML), depth (Prof) and local time. The number of questionnaires processed to obtain the map itself is also indicated
This evening's earthquake was preceded by 3 events of magnitude Ml between 1.5 and 1.9.
At the moment (00:50 on 15 August 2018) another seismic event has been located in the area of magnitude Ml 2.3 at 00:03 (figure below).
For more information on this event: click here