The number of earthquakes located for 1964-65 is plotted versus magnitude, broken down into shallow, h〈 or =70 km, intermediate, h = 70 to 300 km); and deep, h〉300 km. If the threshold above which all earthquakes are located is about 5.4, the formula for the number of shocks (N) occurring over a period of time at any given magnitude can be written as N = k 10 (super A-BM) , where k will vary with the time period selected and A and B are constants. Taking k as 1, A and B are tabulated for each depth range and compared with values of Gutenberg and Richter and of Fischer. A formula also is given for the total number of earthquakes above a given threshold (m). Below M = 5.4 the percentage of total shocks located for any given magnitude can be estimated by comparing the ordinate of the theoretical curve with that of the observed. The number of earthquakes above M = O occurring annually is found by extrapolation to be 7 X 10 (super 9) .