Professor, Geology
876 Natural Science Complex
North Campus Office: NSC 717
Email: mfs@geology.buffalo.edu
Voice: 645-6800 ext. 3984
Fax: 716-645-3999
Home Page Geology
Casita Volcano, Nicaragua
Report: October 30, 1998 Debris flow and flood breakout
Abstract and publication: AGU San Francisco, 1999, Landslide News
The only house left at El Porvenir,
6 km south of summit
This is at the western edge of the breakout flow
Quebrada at highway 28, 14 km south of summit.
Channel was filled but little overbank deposition here
   
Field team at avalanche overbank,
From left to right:
Christophe Bonnard, Nelson Buitrago Trujillo (standing),
Claus Siebe (sit), Jorge Cruz Calero, < Michael Sheridan.  Wilfried Strauch took the photo.
Quebrada about 9 km south of summit.
This quebrada was an island of trees spared destruction
amidst the debris deposit filled with the breakout
flood but did not flow overbank,
2 km from the slide scarp.
as evidenced by the surface vegetation.
  View down slope from top of avalanche deposit,
2 km a lava flow front in middle ground,
3 km south of summit
Damage at highway 12, 14 km south of summit.
Field team at avalanche overbank, base of slide scarp.
Rio Los Zanjones
Upper part of break-out deposit, avalanche deposits mantle