The On-Line Information Program
The On-Line Information Program is available to individuals and groups having access to a 1200- or 2400-baud terminal with dial-up capabilities to a commercial telephone number in Golden, Colorado. The program is also available on a toll-free WATS number to all users in the United States outside of Colorado. The WATS line will accept either 300- or 1200-baud terminals. In Addition, the On-Line Information Program is available to users throughout the world who have access to the International Packet Switching Network (IPSS), through the U.S. Carrier TYMNET. Users within the United States who have access to TYMNET can also reach the program through the network.
The program is also accessible on the internet computer network.
The
On-Line Information
Program has three options:
-
The Quick Epicenter Determinations (QED).
This option provides a listing of earthquakes that have occurred during a three week period - from about two days behind real-time through the current PDE in production. Events within seven days of real-time are still being revised and republished for the QED as new data are received from contributing observatories. Events older than seven days are no longer revised for the QED, but are retained in the data base ( and are available to QED users) until they are reworked and published on the PDE. The event list is revised every morning. In addition to the daily update, any earthquake for which the NEIC has issued a press release is added to the QED list within about one hour of the time of release. Events in the QED data base may be searched by date range, magnitude, or geographic location.
- The Earthquake Lists.
This option provides choices for viewing seven lists: significant earthquakes of the works, significant earthquakes of the United States, most destructive earthquakes in the world, worldwide earthquakes causing 1000 or more deaths, the ten largest earthquakes in the United States, earthquake facts and statistics, and the number of occurrences of magnitude 7 or greater earthquakes each year from 1900 through 1989.
- The Geomagnetic Field Values. This option provides model values of the following geomagnetic field elements and their rates of change: declination, inclination, horizontal and vertical intensity, north and east components, and total intensity.
The On-Line Information Program is available on a 24-hour basis, seven days a week. For further information on this program, write to:
The On-Line Information Program/QED
USGS/NEIC
Box 25046, Federal Center, MS 967
Denver, CO 80225
(303) 273-8500
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