Articles | Volume 18, issue 9
https://doi.org/10.5194/nhess-18-2355-2018
https://doi.org/10.5194/nhess-18-2355-2018
Research article
 | 
12 Sep 2018
Research article |  | 12 Sep 2018

Growth of a sinkhole in a seismic zone of the northern Apennines (Italy)

Alessandro La Rosa, Carolina Pagli, Giancarlo Molli, Francesco Casu, Claudio De Luca, Amerino Pieroni, and Giacomo D'Amato Avanzi

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Cited articles

Abelson, M., Aksinenko, T., Kurzon, I., Pinsky, V., Baer, G., Nof, R., and Yechieli, Y.: Nanoseismicity forecast sinkhole collapse in the Dead Sea coast years in advance, Geology, 46, 83–86, https://doi.org/10.1130/G39579.1, 2017. 
Amelung, F., Galloway, D. L., Bell, J. W., Zebker, H. A., and Laczniak, R. J.: Sensing the ups and downs of Las Vegas: InSAR reveals structural control of land subsidence and aquifer-system deformation, Geology, 27, 483–486, https://doi.org/10.1130/0091-7613(1999)027<0483:STUADO>2.3.CO;2, 1999. 
Atzori, S., Baer, G., Antonioli, A., and Salvi, S.: InSAR-based modelling and analysis of sinkholes along the Dead Sea coastline, Geophys. Res. Lett., 42, 8383–8390. https://doi.org/10.1002/2015GL066053, 2015. 
Baer, G., Schattner, U., Wachs D., Sandwell, D., Wdowinski, S., and Frydman, S.: The lowest place on Earth is subsiding – An InSAR (Interferomeric Synthetic Aperture Radar) Perspective, Geol. Soc. Am. Bull., 114, 12–23, https://doi.org/10.1130/0016-7606(2002)114<0012:TLPOEI>2.0.CO;2, 2002. 
Baldacci, F., Botti, F., Cioni, R., Molli, G., Pierotti, L., Scozzari, A., and Vaselli, L.: Geological-structural and hydrogeochemical studies to identify sismically active structures: case history from the Equi Terme-Monzone hydrothermal system (Northern Apennine – Italy), Geoitalia, 6th Italian Forum of Earth Sciences, 12–14 September 2007, Rimini, Italy, 2007. 
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We use a multi-disciplinary dataset to show that the Prà di Lama sinkhole was created through several episodic events of unrest. We suggest that fluid circulation along an active fault zone, accompanied by localized seismic creep, control the growth of the Prà di Lama deep-sited sinkhole. Conversely, a connection between events of unrest and the largest earthquakes in northern Tuscany is not identified. This paper provides new insights into the evolution of sinkholes in active fault zones.
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