With regard to felt reports, I'm not sure I completely follow your drift, as
clustering per se is dependent on clustering of settlements. I'm thinking
that you are supposing that distant damage effects should be greater on
major forelands? I'm not aware of any evidence that this is so, and with
regard to the Alpine foreland, the reverse may be the case.
Roger Musson
-----Original Message-----
From: Umberto Fracassi [mailto:[log in to unmask]]
Sent: 19 November 2003 15:22
To: [log in to unmask]
Subject: felt reports distribution
Hi all and apologies for x-posting.
A quick but provocative query:
is there any documented study of the transmissivity, even far (80/100+
km) from the seismogenic source, of P-waves and damage on competent,
consistently thick (6/7 km, from subsurface data) carbonate platforms?
In other words, how much can felt reports from a major seismic event
cluster on terrains pertaining to an outcropping major foreland?
Many thanks for any hint and have a pleasant day,
Ciao,
Umberto
--
Umberto Fracassi
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Istituto Nazionale di Geofisica e Vulcanologia
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Italy
Tel: +39-06-51860557
Fax: +39-06-5041181
Email: [log in to unmask]
WWW: http://www.ingv.it/paleo/fracassi/
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