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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:Explosive.
Pavlof volcano news & activity updates:
Mon, 22 Dec 2014, 18:30
A small eruption Saturday night was reported by a pilot. Alaska Volcano Observatory has no indications of significant activity, but maintains alert level yellow.
Mon, 8 Dec 2014, 09:30
Steam plume from Pavlof volcano on 5 Dec (AVO) Weak activity continues at the volcano. The volcano observatory showed photographs showing the volcano emitting a steam plume and reports seismic activity is still elevated. Read more...Increased temperatures at the summit, detectable on satellite data, are coming from the recent lava flow. [ less]
Wed, 26 Nov 2014, 08:22
The Alaska Volcano Observatory concluded that "the most recent period of explosive eruptive activity at Pavlof Volcano has ended" and downgraded the volcano alert level again. Read more..."For about the past week, seismicity at the volcano has remained at low levels and shows no indication of the unrest typically associated with lava fountaining or ash emission. Satellite observations show no evidence for continuing eruptive activity. Thermal signals at the summit are occasionally visible, but are likely being generated by the cooling of previously emplaced lava and debris and not newly erupted material. [ less] Sun, 16 Nov 2014, 01:53
Satellite image of the ash plume from Pavlov last night (15 Nov, 23:00 UTC) The Alaska Volcano Observatory (AVO) reports that "the eruption that began on November 12 has intensified and the ash cloud height is currently estimated at 25,000 ft above sea level. Read more...Thus, the Aviation Color Code has been raised to RED and the Volcano Alert Level to WARNING. The intensity of seismic tremor has increased significantly over the past 6 hours, and satellite data indicate that the ash cloud is now at an altitude of 25,000 ft above sea level. As of 11:00 am AKST (20:00 UTC) the cloud is moving towards the northwest and extends for about 125 miles (200 km) downwind." (AVO) [ less]
Fri, 14 Nov 2014, 06:59
Lava fountains from the new eruption at Pavlof volcano (image: AVO) A new eruption began at the volcano on 12 Nov afternoon about 3:00 pm AKST (00:00 UTC on 13 November). The eruption comes from a vent at the upper northern flank just below the summit and has been characterized by ash emissions to about 9000 feet (2.7 km), lava fountaining and avalanches of rock debris and ash descending the north flank of the volcano. Read more...Minor ash emissions were visible in the FAA-operated web camera in Cold Bay beginning around 4:50 pm AKST yesterday (1:50 UTC on 13 November). Observations from ground observers in Cold Bay coincided with a subtle but distinct increase in seismic activity, and the appearance of a thermal signal at the summit of Pavlof evident in satellite images at 5:40 pm AKST (02:40 UTC 13 November). Since these initial reports of activity, seismic activity has continued to increase gradually and the thermal signal at the summit remains evident in satellite data. Cloud cover has obscured the volcano and no new observations on ash emissions are available. However, the level of seismicity suggests that ash emission continues. (AVO) 
Rising tremor accompanying the onset of the new eruptino (AVO) [ less] Mon, 4 Aug 2014, 15:33
The Alaska Volcano Observatory set the volcano back to normal status a few days ago, as no more signs of eruptive activity had been detected recently.
Tue, 1 Jul 2014, 15:18
"Weak thermal signals from recent lava flows persist in satellite images. Small, discrete seismic events continue, however, and eruptive activity could resume at any time with little or no warning." (AVO)
Thu, 26 Jun 2014, 07:16
Eruptive activity at the volcano appears to have ceased, the Alaska Volcano Observatory (AVO) reports: Read more..."Clear web camera and satellite images over the past several days have shown no evidence of continued lava fountaining from the summit. Only weakly elevated surface temperatures in the vicinity of recent lava flows northeast of the summit have been recorded. AVO has observed no evidence of ash emission from the volcano since early June." [ less] Thu, 19 Jun 2014, 15:22
Current seismic activity (PVV station, AVO) According to AVO, seismic activity suggests that weak eruptive activity (minor lava effusion?) continues at the volcano.
Mon, 16 Jun 2014, 10:00
Comparison of thermal satellite images of Pavlow volcano from 2 and 9 June. The lava flow has almost disappeared. (ASTER / GSJ) Based on seismic data, eruptive activity continues at the volcano according to the Alaska Volcano Observatory. However, it has significantly dropped (if not stopped) over the past week. No hot spot is currently visible on satellite imagery. Read more...No ash emissions or lava fountains could be detected recently. A weekly alimented lava flow could still be seen on satellite data from 9 June. [ less]
Wed, 4 Jun 2014, 07:43
Tremor amplitude over the past days (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. Read more...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. 
Ash plume from Pavlof volcano on 2 June (image: Christopher Diaz / AVO) [ less] 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 more...A large thermal hot spot indicates the presence of fresh lava flows on the flanks of the volcano. 
Current seismic activity (PVV station, AVO) [ less]
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 more..."Satellite imagery shows elevated surface temperatures. A low level steam plume is visible in satellite imagery and in the FAA web camera located in Cold Bay. Several pilots reported a gas and ash plume drifting north at 7,000 to 8,000 feet above sea level. Based on these observations AVO raised the Aviation Color Code to ORANGE." (AVO) [ less]
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