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Pavlof volcano
Stratovolcano 2519 m / 8,264 ft
Alaska Peninsula, USA, 55.42°N / -161.89°W
Current status: normal or dormant (1 out of 5) Pavlof volcano eruptions:
1762(?), 1790(?), 1817, 1825(?), 1838(?), 1844, 1846, 1852(?), 1866(?), 1880, 1886, 1892, 1894, 1901, 1903(?), 1906, 1914, 1917, 1922, 1924, 1929, 1936, 1950, 1951, 1953, 1958, 1960, 1966, 1973, 1974(?), 1975, 1980(Mar-May), 1980 (Jul)(?), 1980 (Nov), 1981, 1983 (Jul), 1983 (Nov-Dec), 1983, 1986, 1990, 1996, 2007 (Aug), 2013, 2014, 2016
Typical eruption style:

Pavlof volcano news & activity updates:

Pavlof volcano (Alaska) activity update: eruption continues, but at reduced intensity

Wed, 4 Jun 2014, 07:43
07:43 AM | BY: T
Lava fountains and flows on Pavlof volcano yesterday (image: Robert Stacy / AVO)
Lava fountains and flows on Pavlof volcano yesterday (image: Robert Stacy / AVO)
Tremor amplitude over the past days (AVO)
Tremor amplitude over the past days (AVO)
Ash plume from Pavlof volcano on 2 June (image: Christopher Diaz / AVO)
Ash plume from Pavlof volcano on 2 June (image: Christopher Diaz / AVO)
Lava fountains and flows at the beginning of the eruption on 31 May (image: Paul Horn / AVO)
After a phase of intense eruptive activity yesterday, the volcano continues to erupt lava fountains and flows, along with associated ash plumes, but has decreased its activity.
Starting around 23:00 local time yesterday evening, the effusion rate increased rapidly, lava fountaining at the summit reached 200 m height and the lava flows on the northern flank became more alimented. As a result of violent interaction between lava and ice/snow, pyroclastic flows formed and descended on the flanks. An associated ash plume rose to approx. 24,000 ft (7 km) altitude and drifted more than 70 km to the east.
Today, this activity continues but at reduced pace. AVO lowered the aviation color code from RED to ORANGE: "Although the eruption of Pavlof continues, seismic tremor has deceased over the past 12 hours and has remained relatively steady throughout the day at a much lower level than that of yesterday.
Recent satellite data and web camera views of the eruption plume indicate that there are now two distinct parts of the plume. The part of the plume that reaches high above the volcano appears to be mainly steam and gas with minor ash present, extending south of the volcano. Additionally, pyroclastic flow activity on the north flank is producing diffuse ash emissions that result in areas of hazy air, with variable concentrations of ash below 10,000 ft.
Low-level winds are likely to disperse this ash to the west-southwest with no more than trace amounts accumulating. There are no reports of ash falling in nearby communities."

Previous news

Tue, 3 Jun 2014, 06:34
MODIS hot spots at Pavlov volcano (MODVOLC, Univ. Hawaii)
The low-level eruption of the volcano has escalated, the Alaska Volcano Observatory reports: "Seismic tremor increased starting about 2300 UTC yesterday and pilots have recently reported ash clouds to 22,000 ft. ASL. Recent satellite images show a plume extending over 80 km east of the volcano." (AVO) read all
Sun, 1 Jun 2014, 05:26
After about 1 year of pause, a new eruption started at the volcano on 30 May. Ground observers saw a small lava flow from a vent on the upper NE side of the cone. read all
Fri, 5 Jul 2013, 14:57
No further eruptive activity has been observed. ... read all
Wed, 3 Jul 2013, 06:49
Over the past two days, the eruptive activity at Pavlof has greatly declined and AVO reduced the Aviation Color Code back to Yellow and the Volcano Alert Level to Advisory. read all
Mon, 1 Jul 2013, 16:12
The volcano has been quiet during the past 24 hours, but it is unclear whether this is already an end or only a pause in the eruption, or whether some weak activity is still continuing. AVO reports relatively continuous, but low-level tremor being still present and it is possible that minor emissions of ash, gas and steam and low-level lava fountaining are still occurring intermittently. ... read all

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