Description: Ground-motion flatfiles are commonly used to develop ground motion models (GMMs) and for systematical analysis of ground motions over a wide range of distances and earthquake magnitudes. A flatfile is organized as a table of properties and various intensity measures of earthquake waveforms, including data processing parameters. Here we present a comprehensive processed ground-motion flatfile containing data from the Kyoshin (K-NET) and Kiban-Kyoshin (KiK-net) networks operated by National Research Institute for Earth Science and Disaster Resilience (NIED, 2019) in Japan (Okada et al., 2004; Aoi et al., 2011). This flatfile contains 951,103 ground motions from 18,782 earthquakes and 1,749 stations. Out of these, 450,890 ground-motions are from KiK-net and 500,213 from K-net. The events were recorded between June 1996 and December 2025, covering distances up to 1200 km and magnitudes between 2.5 and 9. The ground motions waveforms have been automatically processed, and metadata describing each event and record are provided in the flat file. An overview of the flatfiles and the processing steps to derive the reported ground-motion parameters is provided in this report. Further details and discussion about the flatfile compilation can be found in the corresponding publication: Loviknes, K., von Specht, S., Lilienkamp, H., Händel, A., Chuanbin Z., and Cotton, F. (2026). Harmonization of KiK-net and K-NET Ground-Motion Parameters and Metadata: A Flatfile of 950,000 Three-Component Records Spanning 29 Years (submitted to Seismica, February 2025, resubmitted March 2026).
Global identifier:
Doi(
"10.5880/GFZ.LKUT.2026.003",
)
Tags: Resilienz ? Baumwolle ? Bodenbewegung ? Datenverarbeitung ? Wohnung ? Erdbeben ? Metadaten ? Forschungseinrichtung ? Automatic processing ? Kyoshin ? Science Keywords > EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > EARTHQUAKES ?
License: Creative Commons Namensnennung 4.0
Language: Englisch/English
Issued: 2026-01-01
Last harvest: 20.06.2026 06:41
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