3D seismic survey for geothermal exploration to start in Kotoriba, Croatia
The Municipality of Kotoriba in Croatia (source: Municipality of Kotoriba)
Carlo Cariaga
8 May 2025
A 3D seismic survey is set to commence in Kotoriba, Croatia under a geothermal exploration license awarded to a local subsidiary of Turkish company Soyak.
The Municipality of Kotoriba in Croatia has announced that a 3D seismic survey to explore for geothermal resources will commence by May 2025 and will be completed in approximately one month. The geothermal exploration permit for the Kotoriba site had previously been awarded to the company Viola Energy Generation doo by the Ministry of Economics and Sustainable Development following a public tender in 2023.
The 3D seismic measurements will cover an area of 40 square kilometers encompassing the Medimurje and Koprivnica-Križevci counties. Between 1000 to 1500 geophones will be deployed and will receive seismic signals emitted by four vibroseis trucks. The survey will extend beyond the boundaries of the Kotoriba geothermal resource area to create a more comprehensive model of the subsurface.
Viola Energy Generation is a project firm of Turkish company Soyak, which has been quite active in geothermal projects in Croatia. The initial proposal of the company for the Kotoriba site involves a EUR 25 million investment and the drilling of two wells. Earlier this year, the company was granted the permit to develop a 98-MW geothermal power project in Legrad through subsidiary Terra Enerji.
Source: Opcina Kotoriba
