Ulivieri, G, Vezzosi, S, Farina, P & Meier, L 2020, 'On the use of acoustic records for the automatic detection and early warning of rockfalls', in PM Dight (ed.), Proceedings of the 2020 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering
, Australian Centre for Geomechanics, Perth, pp. 1193-1202, https://doi.org/10.36487/ACG_repo/2025_80
Infrasonic array technology has been widely used in the last years for the automatic detection and warning of snow avalanches and operative applications exist in Switzerland, Norway and British Columbia. The authors are currently investigating the capabilities of such a technology for the detection of rockfalls and its use as an early warning system to manage the risk associated with the occurrence of those events along linear infrastructures, such as roads and railways, and in open pit mines. The scientific literature clearly shows infrasonic array technology has excellent potential for the detection of rock mass flows such as debris flow events, but it is scarce in the field of rockfalls where the seismic methodology dominates. A first experimental campaign has been carried out by the authors on a site in the Swiss Alps to collect the acoustic (seismic and infrasonic) signature of a significant number of rockfall events and precisely characterise the associated wavefield in terms of frequency content and amplitude. The acoustic recordings have been compared with independent information collected by a Doppler radar installed on the same site and used operationally to close the access to the road located at the bottom of the slope. This paper presents the preliminary results of the above-described experimental campaign.
Keywords: rockfalls, acoustic measurement, seismic, early warning system
Alejano, L, Pons, B, Bastante, F, Alonso, E & Stockhausen, H 2007, ‘Slope geometry design as a means for controlling rockfalls in quarries’, International Journal of Rock Mechanics and Mining Sciences, vol. 44, no. 6, pp. 903‒921.
Alejano, L, Stockhausen, H, Alonso, E, Bastante, F & Ramírez-Oyanguren, P 2008, ‘ROFRAQ: A statistics-based empirical method for assessing accident risk from rockfalls in quarries’, International Journal of Rock Mechanics and Mining Sciences, vol. 45, no. 8, pp. 1252‒1272.
Collins, D, Toya, Y, Hosseini, Z & Trifu, C-I 2014, ‘Real time detection of rockfall events using a microseismic railway monitoring system’ Geohazards, vol. 6.
Dammeier, F, Moore, JR, Haslinger, F & Loew, S 2011, ‘Characterization of alpine rockslides using statistical analysis of seismic signals’, Journal of Geophysical Research, vol. 116.
Deparis, J, Jongmans, D, Cotton, F, Baillet, L, Thouvenot, F & Hantz, D 2008, ‘Analysis of rock-fall and rock-fall avalanche seismograms in the French Alps’, Bulletin of the Seismological Society of America, vol. 98, pp. 1781‒1796.
Dietze M, Mohadjer S, Turowski JM, Ehlers, TA & Hovius N 2017, ‘Seismic monitoring of small alpine rockfalls validity, precision and limitations’, Earth Surface Dynamics, vol. 5, pp. 653‒668,
Geoprevent AG ca. 2020, Rockfall Radar Brienz, Geopraevent AG, Zürich, viewed 3 March 2020,
Hibert C, Malet, JP, Bourrier, F, Provost, F, Berger, F, Bornemann, P, Tardif, P & Mermin, E 2017, ‘Single-block rockfall dynamics inferred from seismic signal analysis’, Earth Surface Dynamics, vol. 5, pp. 283‒292.
Hibert C, Mangeney, A, Grandjean, G & Shapiro, NM 2011, ‘Slope instabilities in Dolomieu crater, Réunion Island: From seismic signals to rockfall characteristics’, Journal of Geophysical Research, vol. 116.
Giacomini, A, Thoeni, K, Kniest, KE & Lambert, C 2011, ‘In situ experiments of rockfall in open pit coal mine’, in E Eberhardt & D Stead (eds), Proceedings of the 2011 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, Canadian Rock Mechanics Association.
Lan, H, Martin, CD & Lim, CH 2007, ‘Rockfall analyst: a GIS extension for three-dimensional and spatially distributed rockfall hazard modeling’, Computers & Geosciences, vol. 33, pp. 262‒279.
Lacroix, P & Helmstetter, A 2011, ‘Location of seismic signals associated with microearthquakes and rockfalls on the Sechilienne Landslide, French Alps’, Bulletin of the Seismological Society of America, vol. 101, no. 1, pp. 341‒353,
Marchetti, E, Walter, F, Barfucci, G, Genco, R, Wenner, M, Ripepe, M, McArdell, B & Price, C 2019, ‘Infrasound array analysis of debris flow activity and implication for early warning’, Journal of Geophysical Research: Earth Surface, vol. 124.
Marchetti, E, Ripepe, M, Ulivieri, G & Kogelnig, A 2015, ‘Infrasound array criteria for automatic detection and front velocity estimation of snow avalanches: towards a real-time early-warning system’, Natural Hazards and Earth System Sciences, vol. 15, no. 11, pp. 2545–2555.
Mayer, S, Herwijnen, AV, Ulivieri, G & Schweizer, J 2018, ‘Evaluating the performance of operational infrasound avalanche detection systems at three locations in the Swiss Alps during two winter seasons’, Proceedings of the International Snow Science Workshop, pp. 611–615.
Meier, L, Jacquemart, M, Wahlen, S & Blattmann, B 2017, ‘Real-time rockfall detection with doppler radars’, in J Corominas, J Moya & M Janeras (eds), Proceedings of the 6th Interdisciplinary Workshop on Rockfall Protection, International Center for Numerical Methods in Engineering, Barcelona, pp. 1–4.
Norris, D 1994, ‘Seismicity of rockfalls and avalanches at three cascade range volcanoes: implications for seismic detection of hazardous mass movements’, Bulletin of the Seismological Society of America, vol. 84, no. 6, pp. 1925–1939.
Ritchie, AM 1963, ‘Evaluation of rockfall and its control’, Highway Research Record 17, Highway Research Board, Washington,
Steinkogler W, Ulivieri, G, Vezzosi, S, Hendrikx, J, Herwijnen & AV, Humstad, T 2018, ‘Infrasound detection of avalanches: operational experience from 28 combined winter seasons and future developments’, Proceedings of the International Snow Science Workshop, pp. 621–626.
Surinach, E, Vilajosana, I, Khazaradze, B, Biescas, B, Furdada, G & Vilaplana, JM 2005, ‘Seismic detection and characterization of landslides and other mass movements’, Natural Hazards and Earth System Sciences, vol. 5, pp. 791‒798.
Ulivieri, G, Marchetti, E, Ripepe, M, Chiambretti, I, Rosa, GD & Segor, V 2011, ‘Monitoring snow avalanches in northwestern Italian Alps using an infrasound array’, Cold Regions Science and Technology, vol. 69, no. 2–3, pp. 177–183.
Vilajosana, I, Surinach, E, Abellan, A, Khazaeadze, G, Garcia, D & Llosa, J 2008, ‘Rockfall induced seismic signal: case study in Montserrat, Catalonia’, Natural Hazards and Earth System Sciences, vol. 8, pp. 805‒812.
Yan, Y, Ting, L, Jie, L, Wubin, W & Qian, S 2019, ‘Monitoring and early warning method for a rockfall along railways based on vibration signal characteristics’, Scientific Reports, vol. 9, article number 6606.
Zimmer, VL & Sitar, N 2015, ‘Detection and location of rockfalls using seismic and infrasound sensors’, Engineering Geology, vol. 193, pp. 49–60.