Mt. Fitzherbert
USGS Update 2005-Jul-24 09:50
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 early in the day and southward to southeastward later.
Recent observations: A magnitude 3.3 earthquake at about 3:30 a.m. this morning triggered another large rockfall from the tip of the growing spine on the new lava dome. About 8:30 last evening a large rockfall without an apparent earthquake trigger generated an ash cloud that was observed drifting over the crater rim. Patterns of seismicity and ground deformation in the crater remain unchanged from those that have become well established during the past few weeks.