1. Simkin T. Siebert L. Volcanoes of the World (Geoscience Press Tucson ed. 2 1994) pp. 162–176.
2. Global Volcanism Network Bull 19–24
3. Tanguy J.-C., Ribière C., Scarth A., Tjetjep W. S., Bull. Volcanol.60, 137 (1998).
4. Each word used to enumerate fatalities is followed below (in parentheses) by its frequency of occurrence in our sources and the conservative number we have assigned to it in italics. “Few” (2) and “some” (1) 3 ;“several” (7) 5 ;“unknown” (69) 15 ;“many” (29) 100 ;“hundreds” (1) 300 ;“thousands” (1) 3000. The “unknown” cases are clearly the most problematic and for this figure we have used the median of all 304 eruptions that list specific fatality numbers. For the “many” cases we have reasoned that this word would not be used for numbers <10 or >10 000 and the median for known fatalities in that range is a nice round 100.
5. Encyclopedia of Volcanoes