urn:ieda:metadata:for:doi:10.14470/UR044600 eng dataset Seismic Network Interdisciplinary Earth Data Alliance | Lamont Doherty Earth Observatory | Columbia Univeristy info@EarthChem.org http://www.earthchem.org/sites/earthchem.org/files/arthemia_logo.jpg logo graphic pointOfContact ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 urn:ogc:def:crs:EPSG:4326 The Finnish National Seismic Network 2018-04-18 creation 1980 publication doi:10.14470/UR044600 Institute of Seismology, University of Helsinki missing@unknown.org author University of Helsinki DataCollector missing@unknown.org collaborator Deutsches GeoForschungsZentrum GFZ HostingInstitution missing@unknown.org distributor GEOFON Data Centre DataManager missing@unknown.org custodian Jari Kortström, jari.kortstrom@helsinki.fi ContactPerson missing@unknown.org pointOfContact GFZ Data Services missing@unknown.org publisher Abstract: The Institute of Seismology, University of Helsinki (ISUH) was founded in 1961 as a response to the growing public concern for environmental hazards caused by nuclear weapon testing. Since then ISUH has been responsible for seismic monitoring in Finland. The current mandate covers government regulator duties in seismic hazard mitigation and nuclear test ban treaty verification, observatory activities and operation of the Finnish National Seismic Network (FNSN) as well as research and teaching of seismology at the University of Helsinki.The first seismograph station of Finland was installed at the premises of the Department of Physics, University of Helsinki in 1924. However, the mechanical Mainka seismographs had low magnification and thus the recordings were of little practical value for the study of local seismicity. The first short-period seismographs were set up between 1956 and 1963. The next significant upgrade of FNSN occurred during the late 1970’s when digital tripartite arrays in southern and central Finland became fully operational, allowing for systematic use of instrumental detection, location and magnitude determination methods. By the end of the 1990’s, the entire network was operating using digital telemetric or dial-up methods. The FNSN has expanded significantly during the 21st Century. It comprises now 36 permanent stations. Most of the stations have Streckeisen STS-2, Nanometrics Trillium (Compact/P/PA/QA) or Guralp CMG-3T broad band sensors. Some Teledyne-Geotech S13/GS13 short period sensors are also in use. Data acquisition systems are a combination of Earth Data PS6-24 digitizers and PC with Seiscomp/Seedlink software or Nanometrics Centaurs. The stations are connected to the ISUH with Seedlink via Internet and provide continuous waveform data at 40 Hz (array) or 100-250 Hz sampling frequency. Further information about instrumentation can be found at the Institute’s web site (www.seismo.helsinki.fi). Waveform data are available from the GEOFON data centre, under network code HE, and arefully open. funderName:University of Helsinki Complete Jari Kortström, jari.kortstrom@helsinki.fi ContactPerson missing@unknown.org pointOfContact .mseed EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES NASA/GCMD Earth Science Keywords publication In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers GCMD Instruments publication In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS GCMD Platforms publication In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS > SEISMOLOGICAL STATIONS GCMD Platforms publication Monitoring system GEMET - INSPIRE themes, version 1.0 publication Seismological stations Library of Congress Subject Headings publication Passive seismic SeisData publication Seismometers SeisData publication Velocity SeisData publication MiniSEED SeisData publication Geophysics SeisData publication FOS: Earth and related environmental sciences Fields of Science and Technology (FOS) publication Permanent SeisData publication Displacement SeisData publication Induced seismicity SeisData publication Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International https://geofon.gfz.de/waveform/archive/response/HE URL HasMetadata eng 20 32 60 70 Finland 1980-01-01 1000000000000 http://dx.doi.org/10.14470/UR044600 WWW:LINK-1.0-http--link Landing Page Link to DOI landing page or data facility landing page if no DOI is assigned. information This metadata record was generated by an xslt transformation from a DataCite metadata record; The originator of the dataCite record should be cited in the metadataContact field of this record. The transform was created by Damian Ulbricht and Stephen M. Richard. Run on 2026-08-07 Stephen M. Richard info@iedadata.org processor