Home » Earthquake Center
Explanation of Coded Output
The following catagories contain an explanation for the codes used in the header lines in the Expanded File Format and the Screen File Format.
Catalog Source
Date
Origin Time
Coordinates
Depth
pP
STD DEV
Magnitude
F-E Region
STA
INFORMATION
Radial Distance
U.S. Department of the Interior | U.S. Geological Survey URL: http://neic.usgs.gov/neis/epic/code_output.html Contact: NEIC Web Team Last modification: Friday, 2004 January 09 08:48 MST