Columbia subject headings:
Harvard subject headings:
Earthquake hazard analysis--United States
National Earthquake Hazards Reduction Program (U.S.)--Appropriations and expenditures.
Seismology--Research--United States.
Princeton subject headings:
Earthquake hazard analysis--United States.
National Earthquake Hazards Reduction Program (U.S.)--Appropriations and expenditures.
Seismology--Research--United States.