IASPEI - Picture Gallery

IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy
(S) - IASPEI - International Association of Seismology and Physics of the Earth's
Interior
JSS003 Oral Presentation 1873
Tsunami Early Warning: the approach of NEAREST EU Project.
Dr. Nevio Zitellini
ISMAR Sede Bologna Consiglio Nazionale Ricerche IASPEI
Maria Ana Baptista, Juanjo Danobeitia, Wilfried Jokat, Paolo Favali, Hans Gerber,
Jose Morales, Fernando Carrilho, Azelarab El Mouraouah, Herculano Caetano
In the last decade a pool of European institutions has mapped the location of the potential tsunamigenic
sources in the Gulf of Cadiz (SW Portugal). These sources are mostly tectonic in origin, are located near
the SW Iberian continental margin and are confined and geometrically well constrained. The locations
knowledge of these tectonic structures allowed us to optimally position a Tsunami Early Warning System
(TEWS) Prototype based on the operation of an abyssal a multi-parameter seafloor observatory. This
station will be deployed during summer 2007 offshore Southwest Portugal on behalf the EU project
NEAREST (Integrated observations from Near Shore Sources of Tsunamis: towards an early warning
system).The TEWS methodological approach will be based on the cross-checking of time series acquired
on land by seismic networks and tide gauge stations and by a multi-parameter deep-sea platform, this
latter equipped with near real-time communications to an onshore warning centre. Land and sea data
will be integrated to be used in the prototype of TEWS. The proposed method can be extended to other
near-shore potential tsunamigenic sources, as for instance the Central Mediterranean ), Aegean Arc and
Marmara Sea.
Keywords: tsunami early warning system, multi parameter observatory, tsunami source
identification