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A rapid warning system for earthquakes in the European-Mediterranean region

Objective

The project aims at improving the procedure currently in operation at the European-Mediterranean Seismological Centre for rapidly locating significant earthquakes in the European-Mediterranean area, analysing their source mechanism, and providing this information to the relevant European authorities and the scientific community in a timely manner.

To enhance the geographical coverage of short-period seismological stations transferring data in quasi-real-time
by adding five new networks (Canary Islands, The Netherlands, United Kingdom, Bulgaria and Romania) to
the 16 European networks which already send their data to the EMSC in case of a large earthquake.

To increase the number of seismological centres locating earthquakes in quasi-real-time. Automatic location
software will be implemented at seismological centres in Edinburgh and Thessaloniki. This will improve the
capacity of the EMSC to be alerted rapidly in case of a major earthquake and it will allow the EMSC to lower
the threshold for triggering the alert system to magnitude 5.0 (it is currently set at 5.5).

To carry out studies for defining a better propagation model for the European-Mediterranean region in order
to enhance the accuracy of the location computed. This will be achieved by building regional propagation tables
and by integrating automatic depth evaluation using a regional discretization of the European-Mediterranean
area.

To integrate the automatic computation of the scalar seismic moment and Mm magnitude. This magnitude will
then be used as a reference magnitude in the alert messages disseminated to the users.

To define and implement the appropriate software for fast moment tensor inversion of regional seismic events.
To reduce the delay in computing the full moment tensor, automatic phase picking will be applied. Furthermore,
the number of broad-band seismic stations contributing their data in real-time will be increased: one station in
Spain, two in the Netherlands, one in the United Kingdom and two long-period stations in France will be made
available.

The main deliverable of this research project will consist of information messages sent out routinely and freely
to all interested users following large earthquakes (magnitude greater than 5.0) occurring in the European-Mediterranean area. Within one hour, a first message will provide basic information on the earthquake location
and magnitude. A second message will then give the complete description of the source mechanism of the event.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

CENTRE SISMOLOGIQUE EURO-MÉDITERRANÉEN
Address
C/o Ldg
91680 Bruyeres-le-chatel
France

Participants (7)

ARISTOTLE UNIVERSITY OF THESSALONIKI
Greece
Address

54006 Thessalonki
Commissariat à l'Energie Atomique (CEA)
France
Address
Centre D'etudes De Bruyères-le-châtel
91680 Bruyères-le-châtel
INSTITUTO GEOGRAFICO NACIONAL
Spain
Address
3,C/general Ibaçez De Ibero 3
28003 Madrid
Istituto Nazionale di Geofisica
Italy
Address
Via Vigna Murata 605
00143 Roma
Koninklijk Nederlands Meteorologisch Instituut
Netherlands
Address
10,Wilhelminalaan
3732 GK 3732 Gk De Bilt
NERC British Geological Survey
United Kingdom
Address
Nicker Hill
NG12 5GG Keyworth
Stiftung Geoforschungszentrum Potsdam
Germany
Address
Telegrafenberg A17
14473 Potsdam