Preview
Figure number:
File name:		 04-24
04_24.JPG		      
The preview Image has been scaled down to fit the screen. Actual image is both larger and clearer.
Title: VOLCANIC ASH ON ROOFS
Caption: Ash on buildings may increase the load on walls by several tons. Shown here are buildings that collapsed and burned from hot ash and lava during an eruption in Iceland in 1973. (Owen Franken/Stock Boston)
Keywords: volcanoes, volcanism, volcanic eruptions, pyroclastics, fires