The earthquake in Tuscany attributable to the stretching of the Apennines

The 4.9 magnitude earthquake, recorded at 05.10 Italian time within the province of Florence, is because of the stretching of the Apennines: “It’s a attribute mechanism of this space which straddles Tuscany and Emilia-Romagna”, he explains to ANSA Romano Camassi, seismologist of the Bologna part of the Nationwide Institute of Geophysics and Volcanology. “Thus far, round fifty tremors have been felt, the vast majority of which under a magnitude of two.0. This can be a pretty typical sequence – continues Romano – however we can’t predict how lengthy it would final and whether or not or not there will probably be different occasions much like an important one “.

The epicenter of the earthquake, situated at a depth of 8.4 kilometres, was recognized roughly 42 kilometers north of Florence, south-west of the municipality of Marradi. Analyzing the current seismicity in an space of ​​30 kilometers round this location, from 2000 to in the present day one other 7 occasions with a magnitude better than 4.0 have occurred: the strongest dates again to 14 September 2003 close to Loiano, within the province of Bologna, with a magnitude 5.2. “Sadly we shouldn’t have a totally full image of the seismic historical past of the world, for the reason that knowledge are recorded precisely solely ranging from the final 200 years – provides the INGV researcher – however it’s actually a sector of the Apennines with excessive seismicity”.

There are two sturdy earthquakes from the previous closest to the world of ​​the seismic sequence of those hours, each with epicenters within the Mugello space (about 25 kilometers north of Florence): the occasion of 13 June 1542, with an estimated magnitude of 6.0, and that of June 29, 1919, of magnitude 6.4. The latter, specifically, is without doubt one of the most essential Italian earthquakes of the twentieth century, and one of many strongest recognized to this point with an epicenter within the northern Apennines. The earthquake that occurred in the present day can also be comparatively near these of the Tuscan-Romagnolo Apennines, specifically the earthquake of twenty-two March 1661 (magnitude 6.05) and 29 October 1725 (magnitude 5.67).

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