SCOPOLIA Suppl. 6 - 2013 
Povzetek 
Glavna razloga za nastajanje potresov v Sloveniji sta zapleteni geološka in tektonska zgradba. Afriška plošča pritiska na evrazijsko, kar je v geološki zgodovini povzročilo dvig Alp. Bled in okolico je v znani potresni preteklosti (od leta 567 n. št. dalje) prizadelo 65 potresov, ki so jih dobro čutili tamkajšnji prebivalci. Od tega je le nekaj takih, ki so dosegli ali presegli V. stopnjo po lestvici EMS (12-stopenjska evropska potresna lestvica) in povzročili manjšo ali večjo gmotno škodo. Poleg teh potresov, katerih žarišča so nastala na širšem območju Bleda, pa so imeli na ta prostor velike učinke potresi, katerih žarišča so nastala drugod, vendar je njihov vpliv zajel tudi obravnavano območje. Omeniti velja predvsem veliki idrijski potres leta 1511, v zadnjem času pa potres v zg. Posočju leta 1998. 
Že tako razgibano dogajanje v začetku 16. stoletja v naših krajih je zaokrožil najmočnejši potres na Slovenskem. Nastal je 26. marca 1511 med 14. in 14. uro in 30 minut po svetovnem času. Veliko škodo je potres povzročil na Gorenjskem, predvsem v Škofji Loki, saj je bilo mesto z gradom v celoti porušeno, ostali so le leseni objekti. Porušeni so bili tudi bližnji smledniški grad in Novi grad pri Preddvoru, gradovi v okolici Tržiča, poškodovan je bil grad Kamen nad dolino Drage pri Begunjah. Potresnih sunkov ni vzdržal niti blejski grad, čeprav je bil zidan na trdni skali. 
Potres z največjimi posledicami v 20. stol. in žariščem v Sloveniji je nastal 12. aprila 1998 v zgornjem Posočju. Potres je bil ob 10. uri in 55 minut po svetovnem času oz. dve uri kasneje po lokalnem. Imel je magnitudo (ML=5,6), največji učinki pa so dosegli med VII. in VIII. stopnjo po EMS. Poleg velike gmotne škode v zg. Posočju je njegov vpliv segal tudi do Bohinjskega jezera, kjer je del obale zdrsel v vodo, in Vogla, kjer je bil poškodovan Ski hotel. Učinki so dosegli med VI. In VII. stopnjo po EMS. Proti Bledu so se zmanjšali in dosegli V. stopnjo. 

Summary 
The main reasons for the occurrence of earthquakes in Slovenia are the country's complex geological and tectonic structure. The African plate presses against the Eurasian plate which led, in the geological history, to a rise of the Alps. In the known seismic history (from 567 AD on), Bled and its environs were hit by 65 earthquakes, which were all well felt by the local inhabitants. Some of these reached, or even surpassed, grade 5 on the EMS (12-grade European Macroseismic Scale) and caused minor or major material damages. Apart from these earthquakes with hypocenters in the wider environs of Bled, this area was affected by earthquakes with hypocentres elsewhere, but still had certain consequences on the area under consideration. The most noteworthy among them are the earthquake that hit Idrija in 1511 and the one that took place more recently, i.e. in 1998 in Posočje (the Upper Soča Valley). 
The highly dynamic events at the beginning of the 16th century were rounded up by the strongest earthquake of all times in our country. It occurred on March 26th 1511 between 14.00 and 14.30 hrs world time. The quake caused great damages in the Gorenjska region, particularly in Škofja Loka, for the town with its castle was completely destroyed, with only wooden facilities spared. The nearby Smlednik Castle and Novi grad (New Castle) near Preddvor suffered the same fate, while Kamen (Stone) Castle above the Draga valley near Begunje was badly damaged. Earthquake shocks could not be sustained even by Bled Castle, although built on a solid rock. 
The earthquake with dire consequences in the 20th century and hypocenter in Slovenia took place on April 12th 1998 in Posočje. It shook the ground at 10.55 hrs world time (2 hours later local time). Its magnitude was ML=5.6, with greatest seismic intensity between grades 5 and 6 on the EMS. Apart from the great material damage caused in Posočje, its influence reached 
tRenato VIDRIH: Potresna dejavnost / Seismic activities 
Lake Bohinj, where a part of its shore slid into the water, and Mt Vogel, where Ski Hotel was damaged. The magnitude oscillated between grades 6 and 7 on the EMS. Towards Bled, the earthquake effects were slightly reduced, reaching grade 5 on the EMS. 

Literaturni viri: 
RIBARIČ, V., 1982. Seizmičnost Slovenije. Katalog potresov. Seizmološki zavod SR Slovenije, 649 str., Ljubljana. RIBARIČ, V., 1987. Seizmološka karta za povratno periodo 500 let. Zajednica za seizmologiju SFRJ, Beograd. VIDRIH, R., RIBIČIČ, M., 1999. Porušitve naravnega ravnotežja v hribinah ob potresu v Posočju 
12. aprila 1998 in Evropska potresna lestvica (EMS-98), Geologija 41, 365-410. 
VIDRIH,	 R., RIBIČIČ, M., 1999. Potres 12. aprila v zgornjem Posočju. Posledice v naravi. Potresi v letu 1998 (ur. J. LAPAJNE), 121-144.