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.

Validated continuous seismic data

1. Acces to continuous validated data with the Arclink protocol

Arclink is a protocol used for seismological data exchange. The data requests are made by time windows. Allowed request types are currently WAVEFORM, RESPONSE, INVENTORY, ROUTING and QC. Data format of WAVEFORM and RESPONSE requests is SEED (Mini-SEED, dataless SEED, full SEED). Data format of INVENTORY, ROUTING and QC requests is XML.

More information about Arclink: http://www.seiscomp3.org/wiki/doc/applications/arclink

The IPGP datacenter is one of the primary nodes of the EIDA (European Integrated Archived) distributed datacenter.

Address of the EIDA node at IPGP: eida.ipgp.fr
port : 18001

To access to the EIDA node at IPGP the TCP port 18001 must be open in the firewall.

There are two ways to access data using the Arclink protocol:

  • You can use the tool arclink_fetch. You have to install this software on your computer, be careful, you need to have at least the '2014.066' realease of arclink_fetch: https://www.seiscomp3.org/downloader/download/release/88
  • You can use the Python language and the ObsPy library : ObsPy : A Python Toolbox for seismological data processing : http://obspy.org/ ObsPy is an open-source project dedicated to provide a Python framework for processing seismological data. It provides parsers for common file formats and seismological signal processing routines which allow the manipulation of seismological time series.

2. Acces to continuous validated data with the NetDC software

The data of the volcanological and sismological observatories are available at the IPGP datacenter through the NetDC protocol developped by IRIS-DMC. NetDC is a data request system that allows a user to request seismological information from multiple data centers through a single email mechanism. Information is delivered to the user through email and/or FTP in a uniform binary or text format.

Be careful, since 1st October 2013, the NetDC at IRIS-DMC is definitively stopped, so you should send your requests directly by email to netdc at ipgp.fr.

Data will be returned in SEED format for data request (.DATA).

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).

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).