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
mitigate damage by
earthquakes then the NZNOG list might well be a good English-language place to
get some advice.
Earthquakes of magnitude 4 and up happen pretty regularly (several times per
week is common).
http://www.geonet.org.nz/earthquake/quakes/recent_quakes.html
http://www.nznog.org/
Joe
> -Original Message-
> From: Owen DeLong [mailto:o...@delong.com]
> Sent: Wednesday, March 24, 2010 11:48 PM
> To: Jeroen van Aart
> Cc: NANOG list
> Subject: Re: Earthquakes
>
>
> On Mar 24, 2010, at 3:32 PM, Jeroen van Aart wrote:
>
> > Owen DeLon
On Mar 24, 2010, at 3:32 PM, Jeroen van Aart wrote:
> Owen DeLong wrote:
>> I've been through more than one quake in the 5.2-5.5 range, so, perhaps they
>> are
>> rare in the Netherlands (6 million years or so), but, in California they are
>> much more
>> frequent, perhaps 5-7 years or so.
>
>
Michael Thomas wrote:
Something to keep in mind is that raw magnitude isn't the whole story. The
ground composition is *much* more important when it comes to
destructiveness.
A 5.0 earthquake in the Netherlands might be extremely damaging because of
liquifaction.
Yes the one I mentioned from
Owen DeLong wrote:
I've been through more than one quake in the 5.2-5.5 range, so, perhaps they are
rare in the Netherlands (6 million years or so), but, in California they are
much more
frequent, perhaps 5-7 years or so.
Well, 6 million years was a "slight" exaggeration to get a point across.
, our rock is
more "shattered" which damps the seismic waves. Back east, on the other hand,
the bedrock is more solid which is why the New Madrid earthquakes traveled
so far (ringing bells in Boston, IIRC). Of course New Madrid were huge
earthquakes by any standard.
Mike
On 03/24/2010
When I was living in San Jose/Sunnyvale and we had a 5.2 in 2001? (can't
remember the date, was a bit ago). The only effect I felt from it was as if
someone had taken the back of my chair and pushed it forward, that was about
it. Of course at the same time there was a large Earthquake in Turkey b
wrote:
> I saw a recent(-ish) short thread about a mag. 4 quake in the SF Bay Area.
> This
> http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/36.38.-123.-121.php
> should provide with everything you need to know.
>
> I check it on a daily basis and it's been rat
, March 24, 2010 1:12 PM
To: Jeroen van Aart
Cc: NANOG list
Subject: Re: Earthquakes
We had a 6.2 last year in Costa Rica... We immediately regretted where
we
had placed our racks and are almost finished a project to move them to a
concrete floor (rather than that compressed cardboard stuff). Lost a
things over.
Here's what it looked like... http://www.youtube.com/watch?v=F8udXyyqUiw
On 24 March 2010 13:31, Jeroen van Aart wrote:
> I saw a recent(-ish) short thread about a mag. 4 quake in the SF Bay Area.
> This
> http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/36.38
I saw a recent(-ish) short thread about a mag. 4 quake in the SF Bay
Area. This
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US2/36.38.-123.-121.php
should provide with everything you need to know.
I check it on a daily basis and it's been rather quiet the past week or
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