TY  - HOUR
T1  - Preliminary determination of epicenters
CY  - [Golden, Colo.?] :
CY  - [Washington, D.C. :
CN  - I 19.76:
PB  - U.S. Dept. of the Interior, Geological Survey, National Earthquake Information Service ;
PB  - Supt. of Docs., U.S. G.P.O., distributor],
PP  - [Golden, Colo.?] :
PP  - [Washington, D.C. :
N1  - Description based on: Dec. 1978; title from caption.
ID  - 216031
KW  - Earthquake prediction
TI  - Preliminary determination of epicenters
ER  -