Mt. Fitzherbert

Aerial views taken on 2005-Dec-11

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that ash clouds that rise up to about 15,000 feet above the crater rim (about 23,000 feet above sea level) today would drift southwestward to northwestward; higher-altitude ash clouds would drift east-southeastward.

Recent observations: Small rock falls continue from the growing lava dome. Larger ones may produce ash plumes that are visible above the crater rim. Patterns of earthquakes and ground deformation remain unchanged from recent trends. The volume of the dome measured on October 24, 2005, was 70 million cubic meters—about 90% of the volume of the 1980-to-1986 dome.