Lava effusion from Veniaminof's intracaldera cone resumed on 6 October, prompting AVO to raise the Volcano Alert Level to Watch and the Aviation Color code to Orange.
Satellite images from a period of clear weather last night showed that lava effusion has paused. Seismicity remains elevated and is characterized by numerous small discrete events. There is no evidence of ash emissions in seismic or satellite data. (AVO)
![MODIS hot spot data for Veniaminof volcano showing the area of the latest lava flows (ModVolc, Univ. Hawaii)]()
MODIS hot spot data for Veniaminof volcano showing the area of the latest lava flows (ModVolc, Univ. Hawaii)
Seismicity remains elevated and hot spots remain visible in the caldera on MODIS data. The seismic activity has been gradually declining over the past several days, and no clear views could be obtained from webcam images to see if lava effusion continues.
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
The eruption continues. Seismicity remains elevated but partially masked by storm noise. Satellite and web camera images are obscured by clouds, but it is likely that lava effusion and minor ash emissions continue.(AVO)
The eruption of Veniaminof continues with the effusion of lava from the cone in the summit caldera.
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
The eruption of Veniaminof resumed this morning, the Alaska Volcano Observatory reports.
The Alaska Volcano Observatory recently lowered the alert status from Orange/Watch to Yellow/Advisory. Although some weak tremor continues to be recorded under the caldera, no more eruptive activity seems to have taken place during the past weeks. The lava flows and the new cinder cone that was built inside the caldera are now cooling.
On 20 September AVO reported that, based on a decrease in seismicity at Veniaminof and no eruptive activity observed by satellite or the web camera over the previous week, the Aviation Color Code was lowered to Yellow and the Volcano Alert Level was lowered to Advisory. Low-level seismic tremor continued during 21-24 September.
Mon, 16 Sep 2013, 15:10
The eruption seems to be ending. AVO reports that "seismic tremor continues though at decreased levels compared to prior weeks. No unusual activity was observed in webcam images. These data indicate that the effusion of lava from the active vent may be ongoing though diminished."
Thu, 12 Sep 2013, 17:03
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
A phase of strong continuous tremor occurred between yesterday noon and this morning (local time), possibly indicating another paroxysm with lava fountaining and associated ash emissions. Cloud cover prevented direct observations.
Wed, 11 Sep 2013, 06:00
AVO reported continuous seismic tremor at Veniaminof during 11-17 September, and elevated surface temperatures detected in satellite images that were consistent with lava effusion and fountaining. On 11 September a diffuse steam plume possibly containing ash was recorded by the web cam in Perryville, 32 km SSE. Weak thermal anomalies and decreased levels of tremor during 14-16 September possibly indicated ongoing but diminished lava effusion.
Read allTue, 10 Sep 2013, 13:43
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
The eruption continues at moderate levels, as evidenced by continuous seismic tremor and elevated surface temperatures in satellite views. Effusion and fountaining of lava from the active vent are likely ongoing as is low level ash emissions that are, at this time, restricted to an area within a few miles of the vent. (AVO daily update)
Fri, 6 Sep 2013, 12:53
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
Activity has decreased compared to the strong episode between 30 August and 2 September. Continuous seismic tremor suggests that lava effusion, accompanied by minor ash emission, continues.
Wed, 4 Sep 2013, 06:00
AVO reported continuous seismic tremor at Veniaminof during 4-10 September, and elevated surface temperatures detected in satellite images consistent with lava effusion and fountaining. Cloud cover sometimes prevented web cam views (from Perryville, 32 km SSE) of the intracaldera cone, although on 4 September a diffuse ash plume was observed rising several hundred feet above the cone and drifting E. On 7 September the web cam recorded a plume more steam-rich than in recent days.
Read allTue, 3 Sep 2013, 09:45
![Brief clear view of Veniaminof with visible plume last night (Perryville webcam, FAA)]()
Brief clear view of Veniaminof with visible plume last night (Perryville webcam, FAA)
Eruptive activity remains elevated. Strong continuous tremor suggests ongoing lava fountaining associated with lava flows and ash emissions. A plume of ash was reported to drift eastward at an altitude of 15,000 ft (4.5 km).
Mon, 2 Sep 2013, 16:07
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
Another phase of strong tremor started last night, probably corresponding to a second paroxysm with lava fountains and ash emissions. Bad weather conditions have been preventing direct observations.
Read allSat, 31 Aug 2013, 10:35
![Ash plume rising from Veniaminof earlier today (Perryville webcam, FAA)]()
Ash plume rising from Veniaminof earlier today (Perryville webcam, FAA)
A strong eruptive phase (paroxysm) with lava fountains and associated ash emissions reaching 15-20,000 ft (4.5-6 km) altitude occurred yesterday.
Read allFri, 30 Aug 2013, 09:48
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
The eruption at the intracaldera cone of Veniaminof Volcano continues. The seismicity over the past 24 hours has been characterized by discreet episodic bursts of tremor, likely associated with lava effusion and minor ash emission.
Read allWed, 28 Aug 2013, 06:00
AVO reported that during 27-29 August seismicity at Veniaminof was characterized by discreet episodic tremor bursts, likely associated with lava effusion and minor ash emissions. Satellite images detected prominent thermal anomalies at the intracaldera cone. Activity increased on 30 August and was some of the strongest detected since the eruption began in early June; intense seismicity, lava fountaining, and ash emissions to 4.6-6.1 km (15,000-20,000 ft) a.s.l. were observed.
Read allWed, 21 Aug 2013, 06:00
AVO reported that on 20 August residents of Perryville (32 km SSE) reported hearing loud explosions coming from Veniaminof, and air waves were detected by infrasound equipment in Dillingham (322 km NE). Trace amounts of ash fell in Perryville. During 20-21 August seismic activity at Veniaminof decreased; seismicity became more episodic and fluctuated between periods of relative quiet and short periods of low-level, nearly continuous tremor.
Read allFri, 16 Aug 2013, 15:11
![MODIS hot spot at Veniaminof volcano (past 7 days, Univ. Hawai'i)]()
MODIS hot spot at Veniaminof volcano (past 7 days, Univ. Hawai'i)
The eruption continues with lava effusion from the intracaldera cone, accompanied by strong tremor, AVO reports.
![Current seismic signal from Veniaminof (VNHG station, AVO)]()
Current seismic signal from Veniaminof (VNHG station, AVO)
Wed, 14 Aug 2013, 06:00
AVO reported that during 13-15 August seismic tremor at Veniaminof was high, and persistent elevated surface temperatures consistent with lava effusion were visible on satellite imagery. During 16-17 August the high levels of tremor became sustained; seismicity remained high through 20 August. Very high surface temperatures were detected in images during 16-17 August; only weak thermal signals were evident through the cloud cover in satellite data during 17-18 August.
Read allTue, 13 Aug 2013, 14:55
![Steam and ash plume from Veniaminof volcano yesterday (FAA Perryville webcam)]()
Steam and ash plume from Veniaminof volcano yesterday (FAA Perryville webcam)
A surge of activity seems to be taking place. Both visual and seismic activity have increased over the past 24 hours. An intermittent steam and ash plume has been observed rising to about 12,000 ft (3.6 km) asl. yesterday drifting into westerly directions.
![Current seismic recording from Veniaminof (VNHG station, AVO)]()
Current seismic recording from Veniaminof (VNHG station, AVO)
Thu, 8 Aug 2013, 09:31
Seismic activity remains above background levels and is characterized by intermittent bursts of tremor. Clouds obscured observations of the volcano in satellite and web camera images, so it is unclear whether low-level eruptive activity is continuing. (AVO)
Wed, 7 Aug 2013, 06:00
AVO reported that during 7-11 August seismicity at Veniaminof remained above background levels. Cloud cover obscured views of the cinder cone inside the caldera during 7-8 August. Slightly elevated surface temperatures, consistent with cooling lava flows, were detected in partly cloudy satellite images during 9-10 August.
Read allMon, 5 Aug 2013, 15:47
Seismic activity continues to decline, but remains above background levels. Clouds have obscured observations of the volcano in satellite and web camera images for the past week, so it is unclear whether low-level eruptive is continuing. (AVO daily update)
Sat, 3 Aug 2013, 09:36
The eruption has been decreasing during the past days, and looks as if it could soon end. Seismic activity has decreased as well, but still indicates that some activity continues to take place.
Read all
