Shishaldin volcano news & activity updates:
Shishaldin Volcano Volcanic Ash Advisory: MAIN ERUPTION WAS AT 1945 UTC FM SEISMIC INFO. TOP OF VA ESTIMATED FM WEB CAM VIEWS. ERUPTION IS ONGOING. to 12000 ft (3700 m)
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 25 kts in NE direction.
Mon, 11 Nov 2019, 21:1521:15 PM | BY: VN
The full report is as follows:
FVAK22 at 21:04 UTC, 11/11/19 from PAWU
VOLCANO: SHISHALDIN 311360
PSN: N5445 W16358
AREA: ALEUTIAN ISLANDS
SUMMIT ELEV: 9374 FT [2857 M]
ADVISORY NR: 2019/002
INFO SOURCE: GOES/AVO/PILOT REPORT
AVIATION COLOR CODE: ORANGE
ERUPTION DETAILS: MAIN ERUPTION WAS AT 1945 UTC FM SEISMIC INFO. TOP OF
VA ESTIMATED FM WEB CAM VIEWS. ERUPTION IS ONGOING.
OBS VA DTG: 11/2058Z
OBS VA CLD: SFC/FL120 N5430 W16353 - N5545 W16436 - N5547 W16148
- N5451 W16226 - N5430 W16353 MOV NE 25KT.
FCST VA CLD +6HR: 12/0258Z SFC/FL120 N5435 W16353 - N5806 W16455
- N5755 W16022 - N5450 W16218 - N5435 W16353.
FCST VA CLD +12HR: 12/0858Z NO VA EXP.
FCST VA CLD +18HR: 12/1458Z NO VA EXP.
RMK: T+0 CONFIDENCE HIGH.
NXT ADVISORY: WILL BE ISSUED BY 20191112/0258Z
DB NOV 2019 AAWU
Mon, 11 Nov 2019, 08:54
Alaska Volcano Observatory reported that seismic tremor at Shishaldin has increased over the past day. Satellite and web camera observations were partly obscured by clouds over the past day but elevated surface temperatures in the summit crater were observed in several clear views. These observations are consistent with elevated unrest, but active lava effusion is less likely to be occurring. ... read all
Tue, 5 Nov 2019, 07:38
Shishaldin volcano (Alaska, USA) activity update: lava flow on the northwest flank has increased in length and developed two branches
AVO reported that lava is overflowing the summit crater and the lava flow on the northwest flank has increased in length. Satellite data on Sunday afternoon show that the flow has developed two branches, each extending for about 1000 meters (0.62 miles). Volcanic debris flows (lahars) have also increased in length and now extend as far as 2 km (1.2 miles) on the north and south flanks. ... read all
Thu, 31 Oct 2019, 10:00
Seismicity and infrasound signals were consistent with low level eruptive activity and a steam plume was persistent. ... read all
Thu, 24 Oct 2019, 21:19
Satellite data is now showing that the deep summit crater has been filled and lava is starting to flow over the rim with spatter from Strombolian explosions also being deposited. This melted some of the thick ice sending a lahar halfway down the north flank. Elevated seismicity continues. read all
Thu, 24 Oct 2019, 15:09
Shishaldin volcano (Alaska, USA) activity update: low-level eruptive activity with periodic bursts of lava
Alaska Volcano Observatory recorded low-level eruptive activity with periodic bursts of lava within the summit crater of Shishaldin and a small steam plume over the past day. ... read all