VOLOBSIS is a portal of access to monitoring data acquired at the three volcanological and seismological observatories of Institut de physique du globe de Paris. It presents also maps of monitoring stations associated with these data.

Observatories networks

To each observatory is associated a network code referenced at FDSN:

  • GL: volcanological and seismological observatory of Guadeloupe,
  • MQ: volcanological and seismological observatory of Martinique,
  • WI: Lesser Antilles arc seismological stations,
  • PF: volcanological observatory of Piton de la Fournaise (La Réunion).

Stations are presented on maps or tables, with selectable networks and type of measurement. A list of station names are also indicated and clickable to obtain the main charactaristics. The map can be displayed in full screen mode. Station icons have colors and 2-letter code corresponding to each observatory and network type. Gray icons stand for former active stations.

Realtime seismological data (seedlink IPGP)

Realtime raw seismic data are available through the seedlink protocol (SeisComP software developped by GEOFON) from the IPGP Data Center server.

Seedlink server configuration

  • Name (hostname) : rtserver.ipgp.fr
  • TCP Port : 18000

Access to available dataless SEED (tar files):

Data streams can be freely retrieved through Internet using applications and tools compatible with seedlink protocol (like slinktool, slarchive, ...). For instance, the software SeisGram2K [A. Lomax, 2008] allows to display realtime seismograms of WI stations (few ones for the example), using the following command (needs an installation of Java):

java -cp SeisGram2K60.jar net.alomax.seisgram2k.SeisGram2K -display.maxvisible=21 -seedlink "rtserver.ipgp.fr:18000#WI_ABD:HHZ,WI_BIM:HHZ,WI_CBE:HHZ,WI_DHS:HHZ,WI_DSD:HHZ,WI_ILAM:HHZ#60" -title="Real-time seismicity of Lesser Antilles / IPGP"

GNSS data (GPS)

The portal gives access to global satellite positionning (GNSS) data in the RINEX format. The first permanent GPS stations have been installed at Piton de La Fournaise and Lesser Antilles in 2000. Data from repetition or temporary GPS campaigns are not in this portal. The dataless are available through the station parameters file used by GAMIT software.

Note: data requests are limited to 2000 daily Rinex files.

Access to GNSS data

Former Lesser Antilles GPS data (INSU-CNRS portal)

For the period 2000 to 2010 only, data from 10 permanent GPS stations in Guadeloupe and Martinique are available through the GPScope portal from the INSU-CNRS Technical Service. Daily graphs are also available.
https://gpscope.dt.insu.cnrs.fr/chantiers/antilles

Validated continuous seismic data

Data from IPGP Observatories are available at the IPGP Data Center through the FDSN Web Services and the arclink protocol.

Accessing data through the FDSN Web Services

Use the URL :

http://fdsnws.ipgp.fr/fdsnws

Two Web Services are configured :

Accessing data throught the Arclink Protocol

Connect to arclink server:

arclink.ipgp.fr
TCP Port : 18001

NOTE: user should check that TCP Port is open in the firewall of their institution

The tool arclink_fetch allow getting data through the arclink protocol.

Lesser Antilles seismic data (CDSA portal)

The validated seismological data (catalogs, phase arrival times and waveforms) from all the french Lesser Antilles stations are distributed through the CDSA portal (Antilles Seismological Data Center) with a time delay. The CDSA processes data and publishes scientific and technical information on seismic activity in the Lesser Antilles arc. CDSA is a collaboration between IPGP, BRGM and UAG (Antilles-Guyane University).
www.seismes-antilles.fr

Lesser Antilles accelerometric data (RAP portal)

The accelerometric data from 27 permanent stations installed and maintained by observatories are distributed by the French Accelerometric Network (RAP). RAP is a national instrumental network of strong motion recording for seismic hazard studies. Data and metadata are archived and available through the RAP portal www-rap.obs.ujf-grenoble.fr.

Global broad-band seismological stations of La Réunion and Martinique (Geoscope network)

Continuous and validated data from two broad-band seismological stations RER (Rivière de l'Est, La Réunion) and FDF (Fort-de-France, Martinique) are distributed by Geoscope (G network). Geoscope performs the maintenance of these stations in collaboration with IPGP volcanological observatories. More information and access to the data at: geoscope.ipgp.fr

Realtime sea level data in Guadeloupe (IOC-Unesco portal)

Data from the sea level permanent station DESI (Désirade, Guadeloupe) are available in realtime at the portal of International Oceanographic Commission of UNESCO: www.ioc-sealevelmonitoring.org

Seismic catalog of Guadeloupe (Sismos at School portal)

The catalog of seismic events around Guadeloupe, limited to magnitudes greated than 2, is distributed by the french educational seismic portal "Sismos à l'École": www.edusismo.org

Realtime pictures of volcanos (IPGP portal)

Picture of Soufrière of Guadeloupe, Mount Pelée and Piton de la Fournaise are available in realtime.

Pluridisciplinary monitoring data in realtime (IPGP - restricted access)

Raw data from all monitoring networks, archives and realtime are available to researchers in the framework of scientific and technical collaborations with IPGP, through a restricted access to intranet portals of each observatory (in particular the WebObs system).