The NEIC was transferred to Boulder, Colorado, in 1972 and made part of the U.S. Geological Survey in 1973. The NEIC was moved again in 1974 to its present location in Golden, Colorado.
The National Earthquake Information Center (NEIC), a part of the Department of the Interior, U.S. Geological Survey, is located in Golden, Colorado, 10 miles west of Denver. The NEIC has three main missions. First, the NEIC determines, as rapidly and as accurately as possible, the location and size of all significant earthquakes that occur worldwide. The NEIC disseminates this information immediately to concerned national and international agencies, scientists, critical facilities, and the general public. Second, the NEIC collects and provides to scientists and to the public an extensive seismic database that serves as a solid foundation for scientific research, principally through the operation of modern digital national and global seismograph networks and through cooperative international agreements. The NEIC is the national data center and archive for earthquake information. Third, the NEIC pursues an active research program to improve its ability to locate earthquakes and to understand the earthquake mechanism. These efforts are all aimed at mitigating the risks of earthquakes to mankind; and they are made possible by the fine international cooperation that has long characterized the science of seismology.
Remotely triggered earthquakes have now been observed commonly in geothermal and volcanic regions. Analysis of historic earthquake sequences reveals that remotely triggered earthquakes occur commonly in intraplate crust as well. Because neither abundant geothermal/volcanic fluids nor weak faults are expected to exist in intraplate crust, this provides evidence that at least some faults in intraplate regions are critically stressed.
Subduction zones are plate tectonic boundaries where two plates converge, and one plate is thrust beneath the other. This process results in geohazards, such as earthquakes and volcanoes.
The Alaska/Aleutian Subduction Zone
Subduction zones are plate tectonic boundaries where two plates converge, and one plate is thrust beneath the other. This process results in geohazards, such as earthquakes and volcanoes
The Earthquake Engineering Online Archive is a database of significant, publicly-funded research and development literature, photographs, data, and software in earthquake, structural, and geotechnical engineering. It includes full text for EERC, SEMM, and PEER reports published at UC Berkeley, the NISEE software library, and images from EQIIS.