Published:January 01, 1988
Figures & Tables
Seismicity Map of North America
Earthquake epicenters from global, national, regional, local catalogs, and other source material compared and compiled. Data spans an interval from 1534 through 1985. Only data exceeding magnitude-completeness threshold for each region and time period were plotted. Symbols and colors (used in plotting) reveal details of the seismotectonic fabric of North America yet preserve a perspective of historical earthquake occurrence.