Idrija Fault

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The Idrija Fault (pronounced [ˈiːdrija]; Slovene: Idrijski prelom) is a seismically active fault in Slovenia.[1][2] It strikes NW–SE and the fault plane dips towards the northeast. The activity along the fault started in the Miocene with normal faulting and changed to dextral strike-slip in Pliocene. The fault was first described by Marko Vincenc Lipold, a geologist from Slovenia.[3][4]

Present displacement is measured and varies along strike but is in the order of magnitude of 0.1 mm per year.[3] The strongest earthquake along the Idrija Fault was the 1511 Western Slovenia earthquake (or 1511 Idrija earthquake), which took place on 26 March 1511, had a magnitude of 6.8, and caused about 12,000 deaths.[3][5][6]


  1. ^ Poljak, Marijan; Gosar, Andrej; Živčić, Mladen (2010). "ActivetectonicsinSlovenia" (PDF). GeoActa. Special Publication 3. Retrieved 10 August 2014.
  2. ^ The Adria microplate : GPS geodesy, tectonics and hazards : [proceedings of the NATO Advanced Research Workshop on the Adria Microplate: GPS Geodesy, Tectonics and Hazards, Veszprem, Hungary, April 4-7, 2004]. Dordrecht: Springer. 2006. ISBN 978-1-4020-4233-1. |first1= missing |last1= in Authors list (help)
  3. ^ a b c Bavec, Milos; Car, Marjeta; Stopar, Robert; Jamsek, Petra; Gosar, Andrej (2012). "Geophysical evidence of recent activity of the Idrija fault, Kanomlja, NW Slovenia". Materials and Geoenvironment. 59.
  4. ^ Lipold, Marc Vincenc (1857). "Bericht über die geologischen Aufnamen in Ober-Krein im Jahre 1856". Jahrbuch der k. k. geol. Reichsanstalt.
  5. ^ Fitzko, F.; Suhadolc, P.; Aoudia, A.; Panza, G.F. "Constraints on the location and mechanism of the 1511 Western-Slovenia earthquake from active tectonics and modeling of macroseismic data". Tectonophysics. 404 (1–2): 77–90. doi:10.1016/j.tecto.2005.05.003.
  6. ^ Cunningham, Dickson; Gosar, Andrej; Kastelic, Vanja; Grebby, Stephen; Tansey, Kevin (2007). "Multi-disciplinary investigations of active faults in the Julian Alps, Slovenia" (PDF). Acta Geodyn. Geomater. 4. Retrieved 10 August 2014.