These data are used in the book "Computational Statistics" 
by G.H. Givens and J.A. Hoeting.

Name: earthquake.dat
Chapter: 9
Discussed in: Problem 9.6

Source:  National Earthquake Information Center

Description: These data are the numbers of earthquakes exceeding
magnitude 7.0 for each year from 1900 to 1998.  

Variable label: quakes