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 the Pliocene. The fault was first described by the Slovene geologist Marko Vincenc Lipold.[3][4] The 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 that possibly happened along the Idrija Fault was the 1511 Idrija earthquake, which took place on 26 March 1511. It had a moment magnitude of 6.9 and achieved a maximum intensity of X ("very destructive") as per the EMS scale. It caused 3,000 deaths and extensive material damage.[5][6] In the 20th century, the fault caused the Cerknica Earthquake in 1926 and the Upper Soča Valley Earthquake in 1998 (both EMS VII–VIII).[7]
References
[edit]- ^ Poljak, Marijan; Gosar, Andrej; Živčić, Mladen (2010). "ActivetectonicsinSlovenia" (PDF). GeoActa. Special Publication 3. Retrieved 10 August 2014.
- ^ Pinter, Nicholas, ed. (2006). 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. ISBN 978-1-4020-4233-1.
- ^ a b 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.
- ^ Lipold, Marc Vincenc (1857). "Bericht über die geologischen Aufnamen in Ober-Krein im Jahre 1856". Jahrbuch der k. k. geol. Reichsanstalt.
- ^ "Potresi in nova karta potresne nevarnosti Slovenije" [Earthquakes and a new Earthquake Hazard Map of Slovenia] (in Slovenian). Geological Survey of Slovenia. Retrieved 23 April 2024.
- ^ Cecič, Ina (2011). "Idrijski potres 26. marca 2011" [The 26 March 1511 Earthquake – What Do We Know About It?] (PDF). Geografski obzornik [Geographic Horizon] (in Slovenian). 58 (1). Association of Slovenian Geographers. ISSN 0016-7274.
- ^ 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.