Seminario "The role of local site effects and dynamic properties of Trakošćan Castle (NW Croatia) on the damage extent from 2020 earthquakes event in Croatia"

Giorno 15 maggio 12:00-13:00 si svolgerà in presso l'aula D il seminario dal titolo:

The role of local site effects and dynamic properties of Trakošćan Castle (NW Croatia) on the damage extent from 2020 earthquakes event in Croatia

Summary of lecture
Trakošćan Castle was built at the end of the 13th century as an observation fort in the defense system of northwestern Croatia. The cultural heritage of Trakošćan Castle is protected as a historical entity by the Republic of Croatia. From the 16th century until the year 2000, the Cas-tle was renovated and upgraded several times. The Zagreb earthquake on 22 March 2020 with a local magnitude ML=5.5, (40 kilometers from Trakošćan) and the Petrinja earthquake on 29 December 2020m with a local magnitude ML=6.2 (90 km from Trakošćan) caused damage to Trakošćan Castle.
This work, which started in 2014 in relation to the past earthquake damage – the 1880 Great Zagreb earthquakev(ML=6.1), 1909 Pokupsko earthquakev(ML=5.8) and 1982 Ivanščica Mt. earthquake (ML=4.5) - was continued after the 2020 earthquake events. Based on the comprehensive analyses carried out over the last 10 years, the observed damages at the Trakošćan site related to past and recent earthquakes occurred due to the topographical effects, material degradation over the years and preservation repairs through history.
This lecture will be consist of three parts: a) historical and recent seismicity of the NW Croatia, b) the results of the seismic microzonation of the Trakošćan Castle area, and c) changes in the dynamic properties of Trakošćan Castle before and after the 2020 earthquakes.

Presenter
Assist. Prof. Dr. Davor Stanko, University of Zagreb, Faculty of Geotechnical Engineering

 

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Data di pubblicazione: 05/05/2025