FIGURE 1.1 The summit region of Nevado del Ruiz volcano subsequent to the November 13, 1985 eruption. Note vapor cloud issuing from the summit crater and the tephra blanket overlying the glacial ice cap. (Photograph by D. Herd, USGS.)

The National Academies of Sciences, Engineering, and Medicine
500 Fifth St. N.W. | Washington, D.C. 20001

Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement