This report illustrates, by means of computer animation, how four
different types of landslides (slide, slump, flow, and rockfall) occur and
what type of damage may result*. The report is intended to help students and
others visualize what causes landslides and some of the possible results of
the landslides. By studying the animations and the paper models, students
will come to understand that landslides result from several causes and that
the potential consequences of landslides are numerous and serious.  Included
in the diskette version of this report are the templates for making four
paper models, instructions for their assembly, an educators' guide, and
animations showing the effects of the four different landslides.  The paper
version of this report includes everthing except the animations. 

    Requirements for the diskette version are: Apple Computer, Inc.,
HyperCard 2.0ª  software, and an Apple Macintoshª  computer with
high-density drive. If you are using System 7,  I recommend using  at least
3 MB of RAM with 2.5 MB of system memory available for HyperCard.

     Purchasers of the diskette version of this report, which includes all
of the text and graphics, can use HyperCard 2.0ª software (not supplied) to
change the model (by adding geologic patterns, symbols, colors, etc.) or to
transfer the model to other graphics software packages*.

   To see the entire page (card size: MacPaint), select "Scroll" from "Go"
menu and move the hand pointer in the scroll window. If you are experiencing
trouble with user level buttons, select "message" from the "Go" menu. Type
"magic" in the message box and press return.  Three more user-level buttons
should appear.

   * In the diskette version (HyperCard stack) additional information can be
viewed by clicking on askerisk (*) or bold type.

     The date of this Open File Report is 5/03/1993. OF 93-278-A, paper
copy, 43p. OF 93-278-B, 3.5-in. Macintosh 1.4MB high-density diskette.

     To order this report, contact:  U. S. Geological Survey Book and
Open-File Report Sales, Box 25286 Denver, CO. 80225, or call (303) 236
-4476