The GFZ Seismological Data Archive is the largest seismological data archive in Europe. It holds data from the permanent GEOFON VBB seismic network. For many GEOFON partner networks, GEOFON acts as backup archive and data distribution center.
Additionally, data from many temporary station deployments are permanently archived at GEOFON, in particular passive seismological experiments of the GFZ Geophysical Instrument Pool Potsdam (GIPP) and the German Task Force Earthquake (data archival pending).
Real-time data streams from permanent networks are mostly acquired over the Internet and are immediately accessible as continuous data stream by SeedLink real-time feeds or on request from the archive.
Most of the European networks acquired are contributed to EIDA.
(In part EIDA grew out of an earlier concept, the VEBSN.)
Although the archive consists mostly of data from broadband stations, a substantial amount of short period data is archived as well as some strong motion and OBS data.
The GEOFON Data Archive is linked by GFZ's ArcLink protocol to other partner data centers in Germany (German Integrated Data Archive - GIDA) and Europe (European Integrated Data Archive - EIDA). This integrated data archive infrastructure allows transparent access to the data of all participating archives through a single front-end data portal. All data are accessible in a unified way through ArcLink, SeedLink, web forms or by e-mail.
Direct access through ArcLink, e.g. by using the arclink_fetch command line client.
Archive access to restricted data
Access is restricted for:
data from recent temporary deployments (limited-duration embargos)
some permanent third-party stations/networks for which GEOFON also acts as archive and distribution point
Access to these data may be granted only if the data user can produce written permission from the data producer to use the data, i.e. from the PI of the experiment or a representative of the institution that operates the network.
Requests for data access must be sent to GEOFON including the permission statement.
Requests for restricted data can be made using using FDSN web services;
data requested by Arclink will be encrypted and needs to be decrypted before use.
Please note we monitor requests of these data.
Your personal data, generally credentials used to identify you to us, such as an e-mail address, are collected and retained. These are used to check whether you are allowed access to the data you request. Summary statistics for restricted networks are shared with the relevant data providers (such as project principal investigators (PIs) for temporary deployments) to enable them to understand usage of their data, and verify that their data sets are being shared according to their requirements.
These data providers may be external to GFZ.