Volcanic ash
Subtitle: danger to aircraft in the North Pacific : reducing the risk from volcano hazards.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey fact sheet -- 030-97; Fact sheet (Geological Survey (U.S.)) -- FS-97-030.
Publisher: U.S. G.P.O.
Published: 1997
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Volcanic ash, tuff, etc. -- Northwest, Pacific.; Volcanic hazard analysis -- Northwest, Pacific.; Aeronautics -- Northwest, Pacific -- Safety measures.
Other titles: Danger to aircraft in the North Pacific :
Notes: Caption title.

"U.S. Department of the Interior, U.S. Geological Survey"--P. [2].

Shipping list no.: 97-0194-P.