GEOFON offers access to seismic waveform and station
metadata using the FDSN web services,
Inventory for all networks archived at GFZ. A current list of networks is available.
In particular, networks which are coordinated as part of EIDA but not archived here are not available by web service.
Their metadata can be accessed using our data portal or by other methods.
Returns response-level information as FDSN StationXML for all BH* channels present at all current GEOFON stations. This may be imported directly into SeisComP.
Warning: this is relatively large (> 4MB).
For many temporary networks, the FDSN-assigned network code is shared between multiple networks.
For these you may need to specify a year range to avoid unwanted unrelated stations.
Our list of networks archived at GEOFON includes the start and end year for each network.
The next example shows this:
Requests a list of events occuring in the first twelve hours of 2021 (UTC).
Note specification of "&format=text" in the query string
(after "?" in the URL above).
Response is a text (CSV) file, with columns separated by the "|" character.
There are seven events.
The first row is a header, displaying the meaning of each column.
We do not yet use the EventType parameter to distinguish between types of event, so they are all reported as "earthquake".
Requests a list of events between 21 and 25 December 2016 (inclusive).
Additional parameters in the "query string" (after "?" in the URL above)
serve to constrain the set of events selected by geographical region and magnitude.
As above, the response is a text (CSV) file, with columns separated by the '|' character.
There are currently 12 events matching the selection criteria.
Requests QuakeML for the same event as above, but adds "includefocalmechanism=true".
The response is the same as above but now includes information about the preferred published focal mechanism(s), if there is one.
Requests QuakeML for the event
but adds "includeallfocalmechanisms=true".
The response now includes all published focal mechanism(s).
For GEOFON events currently there is not more than one focal mechanism per event.
Our service includes several similar additional request parameters
which are extensions of the FDSN specification.
For details, see
Access to restricted data with webservices
Stations with restricted channels are available through the
auth extension to FDSN webservices.