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 to east-northeastward.

Recent observations: Two earthquakes a bit larger than magnitude 3 occurred during the past 24 hours, adding to the 5 similar such events of the past week. Clouds permitted only limited views of the new lava dome yesterday, but rockfalls removed noticeable portions of the steep spine between 4 and 5 p.m. yesterday afternoon and between 8 p.m. last night and 7 a.m. this morning, probably coincident with M=2.5 and M=3.2 earthquakes, respectively. The top and flanks of the steep spine are greatly fractured and additional rockfalls are expected, especially coincident with the larger earthquakes.