[124126] in North American Network Operators' Group
Re: Earthquakes
daemon@ATHENA.MIT.EDU (Owen DeLong)
Wed Mar 24 16:24:14 2010
From: Owen DeLong <owen@delong.com>
In-Reply-To: <4BAA688C.2020406@mompl.net>
Date: Wed, 24 Mar 2010 13:20:27 -0700
To: Jeroen van Aart <jeroen@mompl.net>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
In California, 4s are a regular occurrence and we have 2-3s every day.
I rarely notice anything less than a 5, and, often do not notice up to =
a 5.5 in my area.
The worst quake I have personally experienced was the 1989 Loma Prietta =
quake
which was a 7.9 IIRC. It caused some significant damage to some =
substandard
(by modern measure, not when they were built) structures, most notably =
the bay
bridge and the cypress and embarcadero elevated freeways and a =
brick-and-morter
(literally) mall in Santa Cruz. Other than that, the damage from the =
7.9 was minimal
outside of a relatively contained zone rather close to the epicenter.
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.
Owen
On Mar 24, 2010, at 12:31 PM, 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.-123.-12=
1.php
> should provide with everything you need to know.
>=20
> I check it on a daily basis and it's been rather quiet the past week =
or 2 or so. Actually I guess it's been rather quiet ever since the 1989 =
quake, but then a year or so ago I woke up in the morning from some =
rattling doors so I guess it all depends on your perspective.
>=20
> So far the "worst" quake ever I experienced was in the Netherlands =
back around 1988. Magn. 5.2 or something. Which is interesting =
considering these happen like once every 6 million years or thereabouts =
;-)
> Actually I slept through it so I don't know if one can call it =
"experiencing".
>=20
> Greetings,
> Jeroen
