THE EARTHQUAKE OF 12 JULY 2004 IN THE UPPER SOČA VALLEY
Abstract
On 12 July 2004, the Upper Soča Valley was struck by a powerful earthquake for the third time in just under three decades. These earthquakes show that this region is among the most active earthquake regions in Slovenia, perhaps even among the most hazardous. Despite the fact that it was weaker than the earthquake on 12 April 1998 and much weaker than the Friulia earthquake of 1976, it again drew attention to the earthquake hazard in Slovenia, above all in the Upper Soča Valley. It occurred at 13:04 UTC or 15.04 local time. The provisionally estimated coordinates of the epientre are 46.32 N and 13.63 E and the depth of the hypocentre was estimated to be about 8 km. The earthquake, with a magnitude of 4.9, caused maximum effects between VI and VII on the EMS scale in the village of Čezsoča and vicinity and some parts of Bovec. In some areas, because of bad seismological conditions it also achieved effects a levl higher than average. Seismological data are provisional and are still being completed.
References
Agencija RS za okolje, Urad za seizmologijo in geologijo, 2004. Preliminarni tedenski seizmološki bilten za 2004. Arhiv Urada za seizmologijo in geologijo, Ljubljana.
Ba°th, M, 1973. Introduction to Seismology. Birkhäuser Verlag Basel and Stuttgart, 395 str.
Lapajne, J., Šket Motnikar, B., Zupančič, P., 2002. Karte potresne nevarnosti Slovenije. Nesreče in varstvo pred njimi (ur. B. Ušeničnik), Uprava za zaščito in reševanje, Ministrstvo za obrambo, 241–245.
Ribarič, V., 1987. Seizmološka karta za povratno periodo 500 let. Beograd, Zajednica za seizmologiju SFRJ.
Ribičič, M., Vidrih, R., 1998. Geološka, seizmološka in gradbena analiza posledic potresa v Posočju. Lep dokaz, da sestava tal lahko zelo ojači ali omili seizmične valove. DELO – priloga Znanost, 14. oktober 1998.
Ribičič, M, Vidrih, R., 1999. Earthquake on 12 April, 1998 in Posočje – Damage to Nature. International Conference on Earthquake Hazard and Risk in the Mediterranean Region, Nicosia, North Cyprus, 18–22 October, Near East University, str. 227.
Ribičič, M., Vidrih, R., 2004. Geološke primerjave potresov. Sproščene energije manj, posledice hujše ... DELO, priloga Znanost, 29. julij 2004.
Vidrih, R., Ribičič, M., 1999. Slope Failure Effects in Rocks during the April 12, 1998 Posočje Earthquake and Implications for the European Macroseismic Scale (EMS-98), Geologija, Vol. 41, 365–410.
Vidrih, R., Ribičič, M., Suhadolc; P., 2001. Seismogeological effects on rocks during the 12 April 1998 upper Soča Territory earthquake (NW Slovenia). Tectonophysics 330 (3–4), 153–175.
Vidrih, R., 2004 a. Potres 12. julija 2004 v Zgornjem Posočju. Mesečni bilten Agencije RS za okolje, XI, 7, 58–65.
Vidrih, R., 2004 b. Potres 12. julija 2004 v Zgornjem Posočju. Življenje in tehnika LV, september 2004, 20–32, Tehniška založba Slovenije.
Vidrih; R., Tasič, I. Značilnosti potresa v Zgornjem Posočju 12. julija 2004. Največ škode so povzročili lokalni učinki. DELO, priloga Znanost, 22. julij 2004.
Vidrih, R., Ribičič, M., 2004. Potres 12. julija v Zgornjem Posočju – preliminarne geološke in seizmološke značilnosti. Geologija, Vol 47/2, 199– 220.
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