United States Earthquakes, 1986

United States Earthquakes, 1985: Issue 1954

Earthquakes in the United States, January-March 1980: Issues 853-854

Earthquakes in the United States, October-December 1979

Earthquakes in the United States, April-June 1981

Earthquakes in the United States, April-June 1980

Earthquakes in the United States, July-September 1981

Earthquakes in the United States, January-March 1979: Issue 836

United States Earthquakes, 1982: Issue 1655

Earthquakes in the United States, October-December 1980

Earthquakes in the United States, April-June 1979

Seismicity of the United States, 1568-1989 (revised)

Earthquakes in the United States, July-September 1978

Seismicity of the United States, 1568-1989: Issue 1527

Earthquakes in the United States, April-June 1978

Earthquakes in the United States: January - March 1975

Earthquakes in the United States, January-March 1974: Issue 723, Part 1

Earthquakes in the United States, October-December 1981

Earthquakes in the United States, January-March 1977

Earthquakes in the United States, April-June 1974: Issue 723, Part 2