This working group, chaired by , and co-chaired by maintains a station database of all permanent and semi-permanent digital Broad-band (BB) seismograph stations in the European-Mediterranean area.

The Working group mission is to Facilitate coordination between seismological networks in and around Europe.
Specifically:
- Promote common standards and coordination among seismological networks
- Maintain EuroMed BB station overview with the assistance of the ODC
- Assist organisation of the Observatory coordination workshops
- Coordinate technical assistance for network operators
- Formulate relevant (QC) services that ODC may deliver to data providers
- Maintain archive of technical know-how for network operators

More information on Working Group 1 can be found on the following sites:

• Working group members
• Broadband station database for Europe and the Mediterranean
• Broadband Stations Map with stations from the station database
• List of European-Mediterranean Observatories
• Instrument responses (both VEBSN and Spyder data)
• Seismograph Station Codes and Coordinates
  World-wide registration list [ISC]
• To register new stations [ISC]
• FDSN network codes list and registration [FDSN]
• Glossary [Networks, Definitions, etc.]
• Common standards for BB stations
• BB seismometers and high resolution acquisition systems
      A comprehensive overview over commercial available equipment
• How it all started ...