  |
|
|
Volcano Hazards: | Types and Effects
| Location | | Gas | Lahars | Landslides | Lava Flows | Pyroclastic Flows | Tephra | |
 |
Lava pours through a notch in the summit crater of Villarica volcano and down its steep, snow-covered cone. When first erupted on October 30, 1984, the lava flowed onto snow and ice and melted a channel estimated to be at least 30 m deep and 50 m wide. The lava then burrowed underneath the ice and emerged again farther downslope on November 13. When the rate of lava production increased on December 6, the flow of meltwater from the snow and ice increased, triggering a small lahar that destroyed a bridge at the base of the volcano. |
| Home |
Photoglossary |
Volcano observatories |
Site index |
Educator's page |
| Current U.S. activity |
Highlights |