The KNMI offers various services that provide access to Open Data from the KNMI seismic and acoustic networks and the products derived from it. Some of these services are offered directly by the KNMI, either via dedicated tools or via the KNMI Data Centre. Other services are offered by the ORFEUS Data Centre within the European Integrated Data Archive (EIDA) framework. In addition to the services advertised in this page, the KNMI website offers general public information (in Dutch) about last earthquakes, live seismograms, dossiers and research publications.
Zie hier voor een beschrijving in het Nederlands.

Dedicated Web Portals
(manual access and visualization)
Seismic & Acoustic Data Portal / EIDA Data Portal
Raw waveform data and station metadata in (Mini-)SEED and Inventory XML formats.
http://rdsa.knmi.nl/dataportal/
https://www.orfeus-eu.org/webdc3/
Seismic Networks (DOIs) web
Network description, stations list/map, citation information and DOIs.
http://rdsa.knmi.nl/network/
Rapid Raw Strong Motion (RRSM) portal
Strong motion parameters, regression plots and ShakeMaps.
http://rdsa.knmi.nl/nl-rrsm/
Hazardkaart Groningen web
Interactive KNMI Hazard Map(s) for Groningen.
http://rdsa.knmi.nl/hazard/
WFCatalog Data Availability Interface
Availability plots of raw waveform data.
https://www.orfeus-eu.org/data/odc/quality/availability/
WFCatalog Data Quality Inspector
Quality metrics plots of raw waveform data.
https://www.orfeus-eu.org/data/odc/quality/metrics/
PPSD Inspector
Probabilistic Power Spectral Densities (PPSD) plots of waveform data.
https://www.orfeus-eu.org/data/odc/quality/ppsd/
Dedicated Web Services
(programatic access)
fdsnws-dataselect
Raw waveform data in Mini-SEED format.
http://rdsa.knmi.nl/fdsnws/dataselect/1/
https://www.orfeus-eu.org/fdsnws/dataselect/1
fdsnws-station
Station metadata in FDSN Station XML, text and other formats.
http://rdsa.knmi.nl/fdsnws/station/1/
https://www.orfeus-eu.org/fdsnws/station/1
fdsnws-event
Earthquakes source parameters in QuakeML, text and other formats.
http://rdsa.knmi.nl/fdsnws/event/1/
eidaws-wfcatalog
Waveform metadata, availability and quality metrics in JSON format.
https://www.orfeus-eu.org/eidaws/wfcatalog/1/
odcws-rrsm
Strong motion parameters in JSON and ShakeMap Input XML formats.
http://rdsa.knmi.nl/odcws/rrsm/1/
KNMI Data Centre
(manual/programatic access and map preview)
KDC - stations
Station metadata (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/seismische_stations/1
KDC - earthquakes - last 100
(Last 100) Earthquakes source parameters (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/aardbevingen_nederland/2
KDC - earthquakes - complete catalogue
Earthquakes source parameters (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/aardbevingen_catalogus/1
KDC - shakemaps
ShakeMaps in NetCDF4 format.
https://data.knmi.nl/datasets/seismic_shakemaps/1
KDC - hazardmaps
KNMI Hazard Map(s) for Groningen in NetCDF4 format.
https://data.knmi.nl/datasets/seismic_hazardmaps/1
KDC - analog seismograms
Images of scanned analog seismograms for historical earthquakes.
https://data.knmi.nl/datasets/analog_seismograms/1

Raw waveform data
(time series records)
Seismic & Acoustic Data Portal / EIDA Data Portal
Raw waveform data and station metadata in (Mini-)SEED and Inventory XML formats.
http://rdsa.knmi.nl/dataportal/
https://www.orfeus-eu.org/webdc3/
fdsnws-dataselect
Raw waveform data in Mini-SEED format.
http://rdsa.knmi.nl/fdsnws/dataselect/1/
https://www.orfeus-eu.org/fdsnws/dataselect/1
KDC - analog seismograms
Images of scanned analog seismograms for historical earthquakes.
https://data.knmi.nl/datasets/analog_seismograms/1
Waveform metadata
(record's availability and quality metrics)
WFCatalog Data Availability Interface
Availability plots of raw waveform data.
https://www.orfeus-eu.org/data/odc/quality/availability/
WFCatalog Data Quality Inspector
Quality metrics plots of raw waveform data.
https://www.orfeus-eu.org/data/odc/quality/metrics/
PPSD Inspector
Probabilistic Power Spectral Densities (PPSD) plots of waveform data.
https://www.orfeus-eu.org/data/odc/quality/ppsd/
eidaws-wfcatalog
Waveform metadata, availability and quality metrics in JSON format.
https://www.orfeus-eu.org/eidaws/wfcatalog/1/
Stations inventory
(sensor's location, instrumentation, etc.)
Seismic & Acoustic Data Portal / EIDA Data Portal
Raw waveform data and station metadata in (Mini-)SEED and Inventory XML formats.
http://rdsa.knmi.nl/dataportal/
https://www.orfeus-eu.org/webdc3/
Seismic Networks (DOIs) web
Network description, stations list/map, citation information and DOIs.
http://rdsa.knmi.nl/network/
fdsnws-station
Station metadata in FDSN Station XML, text and other formats.
http://rdsa.knmi.nl/fdsnws/station/1/
https://www.orfeus-eu.org/fdsnws/station/1
KDC - stations
Station metadata (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/seismische_stations/1
Earthquakes catalogue
(source parameters)
fdsnws-event
Earthquake source parameters in QuakeML, text and other formats.
http://rdsa.knmi.nl/fdsnws/event/1/
KDC - earthquakes - last 100
(Last 100) Earthquake source parameters (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/aardbevingen_nederland/2
KDC - earthquakes - complete catalogue
Earthquake source parameters (simplified) in NetCDF4 format.
https://data.knmi.nl/datasets/aardbevingen_catalogus/1
Strong motion & ShakeMaps
(ground shaking values and maps)
Rapid Raw Strong Motion (RRSM) portal
Strong motion parameters, regression plots and ShakeMaps.
http://rdsa.knmi.nl/nl-rrsm/
odcws-rrsm
Strong motion parameters in JSON and ShakeMap Input XML formats.
http://rdsa.knmi.nl/odcws/rrsm/1/
KDC - shakemaps
ShakeMaps in NetCDF4 format.
https://data.knmi.nl/datasets/seismic_shakemaps/1
Hazard Maps
(seismic hazard modeling)
Hazardkaart Groningen web
Interactive KNMI Hazard Map(s) for Groningen.
http://rdsa.knmi.nl/hazard/
KDC - hazardmaps
KNMI Hazard Map(s) for Groningen in NetCDF4 format.
https://data.knmi.nl/datasets/seismic_hazardmaps/1
Data Policy Open Data (Open and Anonymous)
License The license might depend on the dataset and be specified in its access data tool(s).
Otherwise, Creative Commons Attribution 4.0 International (CC BY 4.0) is applied.
Disclaimer

Quality of the data

The KNMI take the greatest care to ensure that the data and metadata are accurate and of the highest possible quality. Users of the different data tools assume all responsibility and risk for use of the data. In no event shall KNMI be liable for any damages caused by, but not limited to, absence of data, or erroneous data.

Data ownership acknowledgement

The data user is kindly requested to provide proper reference to the data supplier. This can be done by citing the Royal Netherlands Meteorological Institute (KNMI) and including the DOI of the network(s) whose data is used.

Misuse of the data

Users of the data agree not to misuse or add to without permission, or misrepresent the data provided in any way. Data provided through the different data tools is free of use and cannot be reused in unaltered form for commercial use. The user cannot claim ownership of the data. Please inform us of any misuse of this data.