Structural Geology and Geotechnics News/Events
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GEOTHERMAL DRILLING LEADS TO MINOR QUAKE

Drilling for geothermal power sources caused a minor earthquake early Saturday morning, which was felt across a large area of eastern Switzerland from St. Gallen to Appenzell. The project has been halted while the quake is investigated.

The epicentre of the magnitude 3.6 quake was registered at a depth of four kilometres. The shaking is directly related to test measurements and simulations for the drilling of geothermal power plant project in St. Gallen, according to the Swiss Seismological Service (SED), based at Zurich’s Federal Institute of Technology. The project, which was put on hold following the quake, is the largest of its kind currently underway in Switzerland.

Minor damage to buildings as a result of such a quake can’t be ruled out, the SED noted, although none has been reported.

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