Basic Network Information

Network code: WI Identifier: doi:10.18715/antilles.WI
Type: Permanent DataCite metadata: [HTML] | [XML]
Restricted: No Data access: Metadata, time series
Archived at: IPGP Data Center
Time Range: 2008 to now
Institution(s): IPGP, partners
Creator(s): IPGP Data Center
Abstract: The WI network is composed of stations geographically distributed all along the Lesser Antilles subduction zone, from Grenada in the south, to St Barthélémy in the north. The stations all share the following features:
  • (1) very Small Aperture Terminal (VSAT) satellite telemetry,
  • (2) solar power and 10-day battery,
  • (3) multi sensor stations with broadband seismometer (Nanometrics - Trillium120s or 240s), accelerometer (Kinemetrics - Episensors +/- 2G) and continuous GNSS (Trimble, NetR9),
  • (4) vault and installation design to minimize environmental effects on the instruments.
    The vault design addresses several needs: environmental insulation, ground coupling,and instrument security. The seismic pier, which can accommodate a broadband seismometer, with its insulation, and an accelerometer, is mechanically isolated from the vault walls.
    The sensors are separated from the electronics in order to avoid any electric, magnetic and thermal mutual influence.
    The vault is further insulated with 6 cm thick Styrofoam panels covering every floor. A "CASSIS" shielding (CASserole SISmologique - seismic cooking pot) which is based on the granite slab and "cooking pot", attenuates the barometric effects and then decreases the vertical noise level of broadband sensors by several dBs An additional mumetal cover on Trillium 240 damps magnetic field variations by 100 dB between 50s and 600s, which is the range of the strongest natural variations during magnetic storms.
Seismic data of this network are fully disseminated in SEED format and GNSS data in Rinex format after a validation process. Only seismic data is available in real time (raw data).
Citations: Institut de Physique du Globe de Paris- IPGP; GNSS, seismic broadband and strong motion permanent networks in West Indies
Citations note: The "Observatoire Volcanologique et Sismologique de Guadeloupe" (OVSG), the "Observatoire Volcanologique et Sismologique de Martinique" (OVSM) and the Seismic Research Center of Trinidad and Tobago (SRC) currently operate broadband seimometers, accelerometers and GNSS stations geographically distributed all along the Lesser Antilles subduction zone.

Stations in this network

Network code Station code Station name Latitude Longitude Elevation Type Start End Channels
WI ABD Anse Bertrand, Guadeloupe 16.47 -61.49 12 Seismology, Strongmotion 2012-09-26
WI ANBD Bethesda, Antigua 17.05 -61.77 26 Seismology, Strongmotion 2014-09-17
WI BIM Morne Bigot - Martinique 14.52 -61.07 391 Seismology, Strongmotion 2012-06-18
WI CBE Capesterre Belles-Eaux, Guadeloupe 16.07 -61.61 380 Seismology, Strongmotion 2012-09-26
WI DHS Morne Mazeau - Deshaies, Guadeloupe 16.29 -61.77 618 Seismology, Strongmotion 2008-06-21
WI DSD La Desirade, Guadeloupe 16.31 -61.07 272 Seismology, Strongmotion 2010-10-12
WI DSLB Salisbury, Dominica 15.44 -61.42 324 Seismology, Strongmotion 2014-06-09
WI GCMP Mount Pleasant, Carriacou, Grenada 12.49 -61.43 39.9 Seismology, Strongmotion 2014-03-21
WI ILAM Station Meteo Caravelle - Martinique 14.77 -60.88 38 Seismology, Strongmotion 2012-12-07
WI MAGL Barre de l'ile, Marie-Galante, Guadeloupe 15.95 -61.28 159 Seismology, Strongmotion 2012-09-14
WI MPOM Morne Pois - Martinique 14.45 -60.86 50 Seismology, Strongmotion 2012-11-22
WI SAM Savane Anatole - Martinique 14.84 -61.16 485 Seismology, Strongmotion 2013-09-01
WI SBLM Anse aux cayes, St Bartelemy, Guadeloupe 17.91 -62.85 85 Seismology, Strongmotion 2016-05-28
WI SLBI Bisee - Saint-Lucia 14.02 -60.97 22 Seismology, Strongmotion 2013-04-05
WI TDBA Terre de Bas, Les Saintes, Guadeloupe 15.86 -61.64 159 Seismology, Strongmotion 2012-10-29