Table of Contents

1 Front Matter; 2 Executive Summary; 3 1 Physical Setting and Geologic History; 4 2 The November 13, 1985 Eruption and Subsequent Lahars; 5 3 Performance of Various Structures along the Lahar Paths; 6 4 Preeruption Awareness and Preparedness; 7 5 The Warning Period; 8 6 Disaster Impacts; 9 7 The Recovery Program; 10 8 Posteruption Hazard Watch and Disaster Planning; 11 References; 12 Appendix A Geologic Setting and Prehistoric Volcanic Activities; 13 Appendix B Recommendations for Improving the Existing Warning System for an Impending Eruption of the Nevado del Ruiz Volcano, Colombia, South America: An Advance Report, January/February 1986

About the Author

Committee on Natural Disasters, Division of Natural Hazard Mitigation, National Research Council