A temporary network for monitoring seismicity in the Mugello basin (Northern Apennines, Italy)

Abstract

Within the geodynamic context of the Northern Apennines (Italy), one of the most relevant seismogenic areas is the Mugello basin (NorthEastern Tuscany). The area has a welldocumented record of seismicity; the two major historical earthquakes occurred in 1542 (Mw=6.0) and in 1919 (Mw=6.4). The proximity of the Mugello Basin to densely urbanized areas and the potential impact of strong earthquakes on the cultural heritage in the nearby (~30km) city of Florence makes a better knowledge of the seismicity in that area an important target. Following this argument, by mid2019 we deployed 9 temporary stations within and around the Mugello basin, complementing the permanent monitoring networks currently operating in the area. This report describes the details of the temporary network deployment and shows sample recordings and locations from a Mw=4.5 earthquake which struck the NW margin of the basin on Dec. 9, 2019.