National geophysical data center

Authors

  • Anonymous


Abstract

The National Geophysical Data Center (NGDC) of the Environmental Data Service (EDS), NOAA, is now providing the following services:

Conventional seismograms. Copies of current seismograms from the Canadian and NOAA networks in addition to copies of the seismograms from the World-Wide Network of Standard Seismographs (WWNSS) and other foreign stations are now available.

Ancillary