The West Eifel volcanic field (SW of Bonn, Germany) is not far from NL and the last spectacular eruption there was about 9000 or so years ago (rather recently in geological terms). And there have been other significant earthquakes in the region in recorded history. The Lisbon quake in the 18th century was felt across much of Europe.
-----Original Message----- From: Jeroen van Aart [mailto:jeroen@mompl.net] Sent: Wednesday, March 24, 2010 3:32 PM To: NANOG list Subject: Re: Earthquakes
I've been through more than one quake in the 5.2-5.5 range, so,
rare in the Netherlands (6 million years or so), but, in California
Owen DeLong wrote: perhaps they are they are much more
frequent, perhaps 5-7 years or so.
Well, 6 million years was a "slight" exaggeration to get a point across. The Netherlands doesn't really have any quakes due to faultlines (there aren't any). But it does have the occasional quake due to coal/gas mining. Where the ground compacts or something like it.