Medvednica Fault Zone

The Medvednica Fault Zone is a fault zone in northern Croatia. It is named after the mountain Medvednica. The fault zone strikes ENE–WSW and is seismically active.^[1] The movements along the fault are sinistral and connected to the counterclockwise movements of the Adriatic plate. The fault also shows signs of thrusting.^[2]

The North Medvednica Fault, a reverse fault which reaches the surface at the northern fringe of Medvednica, is believed to be responsible for the 2020 Zagreb earthquake, which caused a M_L 5.5 earthquake with an epicentre in the inner city area.^[3] The most dangerous fault on Medvednica is thought to be the NNW–SSE-oriented strike-slip Kašina Fault, passing through Kašina, around 16 km (10 mi) from the city centre, which could produce earthquakes up to M_L 6.5–6.6 in strength.^[4] Some of the research following the 2020 earthquake indicates that the M_L 6.3 1880 earthquake, thought to have been caused by the Kašina Fault, was actually a product of the North Medvednica Fault, and Kašina's capacity for earthquakes was revised down to M_L 5.88.^{[citation needed]}

References

^ Ivančić, Ines; Herak, Davorka; Markušić, Snježana; Sović, Ivica; Herak, Marijan (2006). "Seismicity of Croatia in the period 2002–2005". Geofizika. 23 (2). Retrieved 19 August 2015.
^ Bada, Gábor; Horváth, Frank; Gerner, Péter; Fejes, István (1999). "Review of the present-day geodynamics of the Pannonian basin: progress and problems". Journal of Geodynamics. 27 (4–5): 501–527. Bibcode:1999JGeo...27..501B. doi:10.1016/S0264-3707(98)00013-1.
^ "Godinu dana od potresa u Zagrebu: 58 obitelji u kontejnerima, gotovo 200 ljudi u hostelu" [One year after Zagreb earthquake: 58 families in improvised housing, almost 200 people in hostels]. Tportal.hr (in Croatian). 22 March 2021. Retrieved 14 May 2021.
^ Rudež, Tanja (13 March 2010). "Zagreb 6,5 po Richteru - Četvrtina grada bila bi sravnjena sa zemljom" [6.5 Richter magnitude in Zagreb – A quarter of the city would be levelled]. Jutarnji list (in Croatian). Retrieved 14 May 2021.

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[Ivančić2006-1] Ivančić, Ines; Herak, Davorka; Markušić, Snježana; Sović, Ivica; Herak, Marijan (2006). "Seismicity of Croatia in the period 2002–2005". Geofizika. 23 (2). Retrieved 19 August 2015.

[Bada-1999-2] Bada, Gábor; Horváth, Frank; Gerner, Péter; Fejes, István (1999). "Review of the present-day geodynamics of the Pannonian basin: progress and problems". Journal of Geodynamics. 27 (4–5): 501–527. Bibcode:1999JGeo...27..501B. doi:10.1016/S0264-3707(98)00013-1.

[3] "Godinu dana od potresa u Zagrebu: 58 obitelji u kontejnerima, gotovo 200 ljudi u hostelu" [One year after Zagreb earthquake: 58 families in improvised housing, almost 200 people in hostels]. Tportal.hr (in Croatian). 22 March 2021. Retrieved 14 May 2021.

[4] Rudež, Tanja (13 March 2010). "Zagreb 6,5 po Richteru - Četvrtina grada bila bi sravnjena sa zemljom" [6.5 Richter magnitude in Zagreb – A quarter of the city would be levelled]. Jutarnji list (in Croatian). Retrieved 14 May 2021.

[1]