Depth shown by isolines.
"Base by U.S. Geological Survey, 1978. Modified in 1985."
"Map center point: Equator 160° W."
"This map is a contribution to the International Decade for Natural Disaster Reduction (IDNDR)."
Includes notes and list of "Compilers and principal contributors."
Accompanied by: Explanatory notes for the natural hazards map of the Circum-Pacific region, Pacific basin sheet, 1:17,000,000 / by Millington Lockwood [and others], (31 p. : maps, section ; 28 cm.).