TY  - RPRT
TI  - United States earthquakes, 1971
AU  - J.L. Coffman
AU  - C. A. von Hake
PY  - 1984
DO  - 10.3133/ofr84971
UR  - https://pubs.usgs.gov/publication/ofr84971
ID  - ofr84971
ER  -