Just heard from a relative (and then I checked with the Tages Anzeiger, online) that there has been an earthquake this afternoon centered in Thusis, Graubünden measuring 4.2 on the Richterscales !! Mother-in-law felt the earth move under her feet (well, seat really as she was sitting down at the time).
Didn't fully appreciate we were in an active zone.
Earthquakes are extremely rare in Graubunden. Basel, however, is in a particularly active earthquake zone, and has been destroyed by an earthquake at least once.
I saw a map awhile back of the earthquake risks in Switzerland. Basel and Sion were the most active regions. Zug was pretty far out of that. In Zug you pretty much only have to worry about floods (if you're low enough to the lake) and mudslides.
Oddly, although I have spent quite a few weeks in Southern California, I never experienced an earthquake there. But I have twice in the last 15 years felt the shock of a quake in Switzerland. Once in Zurich and once in Lenzeheide.
There was no damage from either - it's forbidden, I believe...
It seems anything over 5.5 is 'action stations' in Europe. Guess it must be all the old houses...
Or more specifically all of the houses built from stone and brick. Wood homes tend to deal with earthquakes a bit better as they tend to be quite a bit more flexible.