Mt. Fitzherbert

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that any ash clouds that rise above the crater rim today would drift eastward.

Recent observations: A M2.8 at 8:55pm yesterday caused a large rockfall that sent an ash plume about 2,000 feet above the rim of the volcano. The rockfall removed a large piece off the top of the growing dome, and it destroyed one of the seismometers in the crater. Seismicity returned to normal levels after the event. Although the forecast is for good weather, we are without helicopter support this week. At our next opportunity we will make visual observations and possibly deploy a new seismometer.