Seismology

Seismic live data

Real time recording of 16 seismic stations
Accelerometric Network (Updated January 2012)
The installation of the first equipments of the ground motion network started in June 1995 with different objectives. Mainly, to record adequately (without saturation) strongs motions, felt by population of the region. Also to carry out the study of the attenuation relationships of the acceleration with distance, the study of the amplification of soils in urban areas and to facilitate the studies of the seismic source for the big earthquakes between others aspects.
Site selection criteria

The main criteria used for site selection are following:
1) zones affected by big earthquakes at the past (the most active zones with seismic zones); ,
2) zones with moderate seismic activity highly populated and/or dangerous industries;
3) sites on different materials, soil and rock, to analyse the amplification of the ground motion.

At present 18 accelerometers are avalaible, 13 of which linked(*) by real-time connection.

Equipment
The recording system is digital (at 200 or 100 samples per second) and the equipments are configured to record the three components of the ground motion in a continuous way or also in local recording when the trigger value oscillates on the different sites normally between 0.2x10-3g and 1.5x10-3g.
Main characteristics of the accelerometric stations of Catalonia
Accelerometer

Code

Installation date

Latitude
(N)

Longitude
(E)

Height
(m)

Soil type

Sensor

Owner

Owner: IGC, Geologic Institute of Catalonia; IGN, National Geographic Institute; BRGM, Bureau de Recherches Géologiques et Minières (France); IEA, Institut d'Estudis Andorrans.
Fabra FBRR 6/06/1995 41º 24' 59" 2º 07' 30" 420

Shales(Paleozoic)

 SSA-2 IGN
Olot OLOS 7/06/1995
22/06/2010		 42º 10' 58" 2º 29' 26" 436

Basalts (Quaternary)

 SSA-2
CMG-5TD		 IGN
IGC*
Vielha 1 VIES 9/06/1995 (retired) 42º 42' 14" 0º 47' 50" 965

Alluvial (Quaternary)

 SSA-2 IGN
Vielha 1 VIES 22/10/2004
11/05/2010		 42º 42' 43" 0º 48' 01" 969

Alluvial (Quaternary)

 SSA-2
CMG-5TD		 IGN
IGC*
Vielha 2 VIER 5/05/1998 (retired) 42º 41' 53" 0º 47' 48" 1105

Sandstones(Paleozoic)

 K2 IGC
Vielha 2 VIER 4/07/2002 42º 42' 16" 0º 47' 32" 994

Tubidites (Paleozoic)

Geosys IGN
Vielha 3 TUNR 3/07/2002 42º 37' 22" 0º 46' 01" 1582

Alluvial (Quaternary)

Geosys IGN
Montjuïc MTJR 11/02/1997 41º 22' 16" 2º 09' 25" 51

Sandstones(Miocene)

 Geosys IGC
Llívia 1 LLIR 10/11/1997 42º 28' 45" 1º 58' 27" 1413

Ritmites (Paleozoic)

 K2 IGC*
Llívia 2 LLIS

27/10/2001

 42º 27' 53" 1º 58' 24" 1190

Alluvial (Quaternary)

 K2 IGC*
Celoni 1 CELS 22/02/2001 41º 41' 34" 2º 29' 34" 150

Alluvial (Quaternary)

 K2 IGC*
Celoni 2 CELR 20/09/2001 (retired) 26/06/2008 41º 41' 07" 2º 29' 57" 140

Granite (Paleozoic)

K2 IGC*
Andorra AND1

10/11/2003 (retired) 1/07/2007

 42º 30' 48'' 1º 30' 14'' 1078

Marlycalcareous and shales (Paleozoic)

 Etna IEA
Nébias (França) FNEB 1/01/2007 42º 54' 11' 2º 06' 23'' 580

Lacustrine limestone (Paleogene)

 Episensor BRGM
Granollers GRAM 24/04/2008 41º 36' 26'' 2º 17' 19'' 215

Alluvial (Quaternary)

 K2 IGC*
Montoussé (França) FMON 24/09/2008 43º 03' 45'' 0º 24' 55'' 630

Limestone(Lower Cretaceous)

 Episensor BRGM
Espira-de-l'Agly (França) FESP 17/10/2008 42º 49' 07'' 2º 49' 15'' 170

Limestone(Lower Cretaceous)

 Episensor BRGM
Estadística BAJU 26/02/2009 41º 23' 07'' 2º 10' 27'' 25

Alluvial (Quaternary)

 CMG-5TD IGC*
Girona-
Universitat		 GIRR 19/03/2010 41º 59' 07'' 2º 49' 40'' 104

Limestone (Paleogene)

 CMG-5TD IGC*
Lleida ILER 23/03/2010 41º 37' 14'' 0º 37' 14'' 180

Shales and grainstones (Paleogene)

 CMG-5TD IGC*
Tetuan BINT 28/04/2010 41º 23' 45'' 2º 10' 24'' 36

Alluvial (Quaternary)

 CMG-5TD IGC*
Avinyó AVIN 09/11/2010 41º 50' 44'' 1º 57' 59'' 329

Limestones and marls
(Paleogene)

 CMG-5TD IGC*
Girona-
Generalitat		 GIRS 21/02/2011 41º 59' 02'' 2º 49' 39'' 79

Aluvial
(Quaternary)

 CMG-5TD IGC*
Reus Reus 06/05/2011 41º 08' 05'' 1º 11' 09'' 48

Aluvial
(Quaternary)

 CMG-5TD IGC*
Siuation map of the equipments of the accelerometric network of Catalonia
Siuation map of the equipments of the accelerometric network of Catalonia
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