Strong Motion
Data Centers
The Center for Engineering Strong Motion Data (CESMD) is a cooperative center established by the US Geological Survey (USGS) and the California Geological Survey (CGS) to integrate earthquake strong-motion data from the CGS California Strong Motion Instrumentation Program, the USGS National Strong Motion Project, and the Advanced National Seismic System (ANSS). The CESMD provides raw and processed strong-motion data for earthquake engineering applications.
ESM, the Engineering Strong-Motion Database, provides a set of facilities to search, select, download and analyse ground-motion data and associated metadata. The waveforms contained in ESM are relative to events with magnitude ≥ 4.0, mainly recorded in the European-Mediterranean regions and the Middle-East. ESM is targeted to applied seismologists, earthquake engineers, professional engineers, geologists and policy makers.
K-NET (Kyoshin Network) is a nation-wide strong-motion seismograph network, which consists of more than 1,000 observation stations distributed every 20 km uniformly covering Japan. K-NET has been operated by the National Research Institute for Earth Science and Disaster Resilience (NIED) since June 1996. At each K-NET station, a seismograph is installed on the ground surface with standardized observation facilities.
KiK-net (Kiban Kyoshin Network) is a strong-motion seismograph network, which consists of pairs of seismographs installed in a borehole together with high sensitivity seismographs (Hi-net) as well as on the ground surface, deployed at approximately 700 locations nationwide. NIED constructed KiK-net under the plan ‘Fundamental Survey and Observation for Earthquake Research’ directed by ‘the Headquarters for Earthquake Research Promotion’.
The strong-motion data recorded by K-NET and KiK-net are immediately transmitted to the data management center of NIED in Tsukuba. The observed strong-motion data are widely available to the public through the internet from this web site. The soil condition data explored at K-NET stations and the geological and geophysical data derived from drilling boreholes at KiK-net stations are also available.
User registration is required to download K-NET and KiK-net data.
The Turkish Accelerometric Database and Analysis System hosted by the Disaster and Emergency Management Presidency (AFAD) of the Republic of Turkey. It is a secure gateway where registered users (researchers, engineers, and seismologists) can sign in to access and work with strong-motion seismic data.
Evtdb.csn.uchile.cl is an online instrumental event database hosted by the Centro Sismológico Nacional (CSN) of the University of Chile’s Faculty of Physical and Mathematical Sciences. The site serves as a searchable catalog of seismic events recorded and processed by the CSN’s monitoring network.
