Small quake shakes central Switzerland
Geneva - A light earthquake shook Switzerland's central Zug region early on Friday, the Swiss Seismological Service in Zurich said.
The earthquake had a magnitude of 3.3 on the open-ended Richter scale, and the epicentre was located 6km southeast of Zug.
The quake was clearly felt in the region, the SDA-ATS news service reported.
Zug is about 20km south of Zurich.
Earthquakes of this magnitude do not usually cause damage.
Switzerland is considered at a low to moderate risk of earthquakes. Experts believe an earthquake of magnitude 6 could be expected around once a century and a destructive powerful quake of magnitude 7 only once every 1 000 years.
The town of Basel was destroyed by a quake in 1356. More recently Sierre was rocked by a magnitude 6 quake in 1946.