Seismology > Earthquake Catalogues > Global Data

Catalogue of the National Earthquake Information Center, U.S.Geological Survey


Catalogue "Preliminary Determinations of Epicenters, Monthly Listing", compiled in the National Earthquake Information Center of the U.S.Geological Survey (NEIC USGS), includes information on 263747 world earthquakes for the period from 1868 to 1992. Size of datafile – 29.5 Mbyte. The Catalogue is a part of the Global Hypocenter Database, prepared in the National Earthquake Information Center, U.S.Geological Survey. The database was transmitted to the WDC for Solid Earth Physics on CD-ROM from the World Data Center on Seismology, Denver, USA.
Download catalogue: .dat (text file 29.5 Mbyte) .gz (6.2 Mbyte)	Conventions of Data Format: Length of logical record - 110 byte. All decimal points are given. Zeros and blanks are equivalent. Homogeneous.


Data Format (short-form) The complete format description: look through download (.pdf)
Positions	Code	Description
1- 5	a5	Source code - "PDE ".
6-10	a5	Year.
12-13	i 2	Month.
14-15	i 2	Day.
16-17	i 2	Hours (Origin time – UTC).
18-19	i 2	Minutes.
20-24	f5.2	Seconds.
27-33	f7.3	Latitude in degrees ("–" - south).
34-41	f8.3	Longitude in degrees ("–" - west).
42-44	i 3	Depth in kilometers.
54-56	f3.1	mb magnitude.
59-61	f3.1	Ms magnitude.
65-68	f4.2	Contributed magnitude.
69-70	a2	Magnitude scale.
71-75	a5	Donor.
76-79	f4.2	Contributed magnitude.
80-81	a2	Magnitude scale.
82-86	a5	Donor.
87-89	i 3	Flinn-Engdahl Region Number (Flinn et al., 1974).
90-92	i3	Number of stations used in the computation.
93	i 1	Intensity value.
94-108	a1	Additional information.