The 1511 Idrija earthquake (Slovene: idrijski potres or potres na Idrijskem) occurred on 26 March 1511 with a moment magnitude of 6.9 and a maximum EMS intensity of X (very destructive). The epicenter was near the town of Idrija (now in Slovenia), although some place it in Friuli. The earthquake affected a large territory between Carinthia, Friuli, present-day Slovenia and Croatia. An estimated 3,000 people were killed and damage was considered severe. The earthquake was felt as far as in Switzerland and present-day Slovakia. A number of castles and churches were razed to the ground in a large area from northeast Italy to western Croatia.
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