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Provides FDSN Web Services


fdsnws is a server that provides FDSN Web Services from a SeisComP3 database and record source. The following services are available:

Service Retrieves this... In this format
fdsnws-dataselect time series data in miniSEED format miniSEED
fdsnws-station network, station, channel, response metadata FDSN Station XML, StationXML, SC3ML
fdsnws-event contributed earthquake origin and magnitude estimates QuakeML, SC3ML

If fdsnws is started, it accepts connections by default on port 8080 which can be changed in the configuration. Also please read Changing the service port for running the services on a privileged port, e.g. port 80 as requested by the specification.

Data select

  • time series data in miniSEED format
  • request type: HTTP-GET, HTTP-POST



To summit POST request the command line tool wget in combination with the parameter post-data or post-file may be used.

sysop@host:~$ wget --post-file=request.txt "http://localhost:8080/fdsnws/dataselect/1/query" -O output.mseed

Feature Notes

  • quality parameter not implemented (information not available in SeisComP)
  • minimumlength parameter is not implemented
  • longestonly parameter is not implemented
  • access to restricted networks and stations is only granted through the queryauth method
  • additional request parameters:
    • nodata: [204, 404], default: 204, HTTP-GET only, defines the HTTP error code the server should respond with if no data was found


  • network, station, channel, response metadata
  • request type: HTTP-GET
  • stations may be filtered e.g. by geographic region and time, also the information depth level is selectable

Feature Notes

  • updatedafter request parameter not implemented: The last modification time in SeisComP is tracked on the object level. If a child of an object is updated the update time is not propagated to all parents. In order to check if a station was updated all children must be evaluated recursively. This operation would be much too expensive.
  • to enable FDSNXML or StationXML support the plugins fdsnxml resp. staxml have to be loaded
  • additional request parameters:
    • format: [fdsnxml, stationxml, sc3ml], default: fdsnxml
    • formatted: boolean, default: false
    • nodata: [204, 404], default: 204, defines the HTTP error code the server should respond with if no data was found


  • contributed earthquake origin and magnitude estimates
  • request type: HTTP-GET
  • events may be filtered e.g. by hypocenter, time and magnitude

Feature Notes

  • catalog request parameter is not implemented (information not available in SeisComP)
  • contributor request parameter is mapped to the agencyID, the file @DATADIR@/share/fdsn/contributors.xml has to be filled manually with all available agency ids
  • additional request parameters:
    • format: [qml, qml-rt, sc3ml, csv], default: qml
    • includecomments: boolean, default: true
    • includepicks: boolean, default: false, works only in combination with includearrivals set to true
    • formatted: boolean, default: false
    • nodata: [204, 404], default: 204, defines the HTTP error code the server should respond with if no data was found

Changing the service port

The FDSN Web service specification defines that the Service SHOULD be available under port 80. Typically SeisComP3 runs under a user without root permissions and therefore is not allowed to bind to privileged ports (<1024). To serve on port 80 you may for instance

  • run SeisComP3 with root privileged (not recommended)
  • use a proxy Webserver, e.g. Apache with mod-proxy module
  • configure and use Authbind
  • setup Firewall redirect rules


authbind allows a program which does not or should not run as root to bind to low-numbered ports in a controlled way. Please refer to man authbind for program descriptions. The following lines show how to install and setup authbind for the user sysop under the Ubuntu OS.

sysop@host:~$ sudo apt-get install authbind
sysop@host:~$ sudo touch /etc/authbind/byport/80
sysop@host:~$ sudo chown sysop /etc/authbind/byport/80
sysop@host:~$ sudo chmod 500 /etc/authbind/byport/80

Once authbind is configured correctly the FDSN Web services may be started as follows:

sysop@host:~$ authbind --deep seiscomp exec fdsnws

In order use authbind when starting fdsnws as SeisComP service the last line in the ~/seiscomp3/etc/init/ have to be commented in.


All major Linux distributions ship with their own firewall implementations which are front-ends for the iptables kernel functions. The following line temporary adds a firewall rule which redirects all incoming traffic on port 8080 to port 80.

sysop@host:~$ sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to 8080

Please refer to the documentation of your particular firewall solution on how to set up this rule permanently.



fdsnws inherits global options.


Type: IP

Defines the bind address of the server. "" allows any interface to connect to this server whereas "" only allows connections from localhost. Default is


Type: int

Server port to listen for incoming requests. Note: The FDSN Web service specification defines the service port 80. Please refer to the documentation on how to serve on privileged ports. Default is 8080.


Type: int

Number of maximum simultaneous requests. Default is 5.


Type: int

Maximum number of objects per query, used in fdsnws-station and fdsnws-event to limit main memory consumption. Default is 10000.


Type: int

Restricts end time of requests to current time - realtimeGap seconds. Negative values allowed. Used in fdsnws-dataselect. WARNING: If this value is unset and a realtime recordsource (e.g. slink) is used, requests may block if end time in future is requested.


Type: float

Maximum number of samples (in units of million) per query, used in fdsnws-dataselect to prevent a single user to block one connection with a large request.


Type: string

Path to password file used in fdsnws-station/queryauth. The format is 'username:password' separated by lines. Because of the HTTP digest authentication method required by the FDSN specification, the passwords have to be stored in plain text. Default is @CONFIGDIR@/fdsnws.htpasswd.


Type: string

Path to access log file. If unset no access log is created.


Type: boolean

Enables/Disables the DataSelect service. Default is true.


Type: boolean

Enables/Disables the Event service. Default is true.


Type: boolean

Enables/Disables the Station service. Default is true.



-h, --help

show help message.

-V, --version

show version information

--config-file arg

Use alternative configuration file. When this option is used the loading of all stages is disabled. Only the given configuration file is parsed and used. To use another name for the configuration create a symbolic link of the application or copy it, eg scautopick -> scautopick2.

--plugins arg

Load given plugins.

-D, --daemon

Run as daemon. This means the application will fork itself and doesn't need to be started with &.

--auto-shutdown arg

Enable/disable self-shutdown because a master module shutdown. This only works when messaging is enabled and the master module sends a shutdown message (enabled with --start-stop-msg for the master module).

--shutdown-master-module arg

Sets the name of the master-module used for auto-shutdown. This is the application name of the module actually started. If symlinks are used then it is the name of the symlinked application.

--shutdown-master-username arg

Sets the name of the master-username of the messaging used for auto-shutdown. If "shutdown-master-module" is given as well this parameter is ignored.


--verbosity arg

Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug

-v, --v

Increase verbosity level (may be repeated, eg. -vv)

-q, --quiet

Quiet mode: no logging output

--component arg

Limits the logging to a certain component. This option can be given more than once.

-s, --syslog

Use syslog logging back end. The output usually goes to /var/lib/messages.

-l, --lockfile arg

Path to lock file.

--console arg

Send log output to stdout.


Debug mode: --verbosity=4 --console=1

--log-file arg

Use alternative log file.



List all supported database drivers.

-d, --database arg

The database connection string, format: service://user:pwd@host/database. "service" is the name of the database driver which can be queried with "--db-driver-list".

--config-module arg

The configmodule to use.

--inventory-db arg

Load the inventory from the given database or file, format: [service://]location


Do not use the database at all