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This web site is provided by the United States Geological Survey’s (USGS) Earthquake Hazards Program as part of our effort to reduce earthquake hazard in the United States. We are part of the USGS Hazards Mission Area and are the USGS component of the congressionally established, multi-agency National Earthquake Hazards Reduction Program (NEHRP).
Country
The National Earthquake Database (NEDB) comprises a number of separate databases that together act as the national repository for all raw seismograph data, measurements, and derived parameters arising from the Canadian National Seismograph Network (CNSN), the Yellowknife Seismological Array (YKA), previous regional telemetered networks in eastern and western Canada (ECTN, WCTN), local telemetered networks (CLTN, SLTN), the Regional Analogue Network, and the former Standard Seismograph Network (CSN). It supports the efforts of Earthquakes Canada in Canadian seismicity monitoring, global seismic monitoring, verification of the Comprehensive nuclear Test Ban Treaty, and international data exchange. It also supports the Nuclear Explosion Monitoring project.