A three-part map, showing equatorial and polar regions, has been compiled showing tectonic and volcanic activity of the past one million years, including the present. Features shown include actively-spreading ridges, spreading rates, major active faults, subduction zones, well-defined plates, and volcanic areas active within the past one million years. Activity within this period has been inferred from seismicity (instrumental and historic), physiography, and published literature. The tectonic activity map has been used for planning global geodetic programs of satellite laser ranging and very long base line interferometry, and for geologic education. It illustrates several aspects and problems of global tectonic and volcanic activity not shown on conventional plate maps: the large areas of crustal deformation not susceptible to treatment as parts of rigid plates. the wide occurrence of volcanoes on the upper blocks of continent-continent convergence zones, areas of little-known volcanism and tectonism, intraplate rifts, and the bilateral across-strike symmetry of young fold belts.