|The northern part of the map area and large adjacent regions have been severely shaken by one or more moderate to large prehistoric earthquakes. The evidence of these takes the form of paleoliquefaction features, including shaking-induced sandblows and di
|U.S. Geological Survey Open-File Report 97-0681
Rate of sulfur dioxide and carbon dioxide emitted by a volcano, calculated from the SO2 burden, width of plume, velocity of plume, and compared to background levels of SO2 and CO2. Units are metric tons/day (t/d).
|Sulfur dioxide gas
|Airborne sulfur dioxide associated with volcanic activity.
|Carbon dioxide gas
|Airborne carbon dioxide associated with volcanic activity.