Prices are subject to change without notice.
Addresses and telephone numbers are listed for the distribution office of each of the products. Magnitude 6.5 and greater earthquakes are distinguished from smaller magnitude events by the size of the epicenter symbols. Earthquakes that occurred between 1965 and 1987 are differentiated from earlier events by the color of the epicenter symbol. Earthquakes that occurred prior to 1975 are indicated by a lighter shade of red than the more recent exents. Quaternary faults and folds are also plotted on this map.