TY  - RPRT
TI  - Preparation of earthquake catalogs for the National Seismic-Hazard Maps: Contiguous 48 states
AU  - Charles C. Mueller
AU  - Margaret G. Hopper
AU  - Arthur D. Frankel
PY  - 1997
DO  - 10.3133/ofr97464
UR  - https://pubs.usgs.gov/publication/ofr97464
ID  - ofr97464
ER  -