The membership of the FDSN is truly global and not dominated by any one country or group.
Members come from all continents except Africa.
Most members of the FDSN operate stations that are confined to their national boundaries but several FDSN members operate stations well outside their borders. Membership in the FDSN is open to all groups that operate more than one broad-band station. There is no charge for FDSN membership. The following is a list of FDSN members - those with a are currently supplying data to the FDSN archive. Clicking on the will take you to the FDSN Station Book list for that network.