Based on a decline in ash emissions and seismicity, AVO lowered the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH yesterday at 6:01 pm AKDT (18:01 UTC). Periods of low-level ash emission and somewhat elevated seismicity persisted overnight, but decreased during the early morning hours. A satellite image from this morning at 6:25 am AKDT (14:25 UTC) showed minor ash emissions from the volcano.
Clear web camera views from this morning confirmed intermittent low-level ash emissions at the volcano at maximum altitudes of 15,000 feet above sea level. Areas of drifting remnant ash from the initial energetic emissions on March 27 and 28 continue to be observed in satellite data over Bristol Bay and Interior Alaska. AVO received confirmed reports of trace ashfall (less than 1/32 in) that occurred yesterday near Dillingham in southwest Alaska. No significant ashfall is expected in communities at this time.
Seismic activity remains elevated at levels above background and over the past 24 hours has been characterized by short tremor bursts. Occasionally, small explosions at the summit have produced airwave signals on the local seismic network. Infrasound (pressure sensor) signals from Pavlof were also detected on an array of sensors in Dillingham overnight.
Although the intensity of the eruption has diminished, it is possible for conditions to change at any time and more significant ash emissions may resume with little to no warning. AVO will continue to monitor the volcano closely.
March 30, 2016. Pavlof , Alaska :
55°25’2″ N 161°53’37” W,
Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Source : AVO/USGS
Photos : abc.net.au ( 2013).