Shishaldin volcano news & activity updates:
Shishaldin volcano (Aleutian Islands, Alaska): explosive activitym, alert raised to ORANGE
Saturday Dec 14, 2019 09:51 AM | BY: T
Ash plume from Shishaldin earlier today (image: Sentinel-2)A short-lived explosion occurred at the volcano yesterday and produced an ash cloud to 20,000 - 25,000 feet, which drifted to the W-NW, the Alaska Volcano Observatory (AVO) reported. Ash emissions can also be seen on today's satellite image attached.
"A tremor burst was observed in seismic data at 7:10 (16:10 UTC) and had a duration of about 3 minutes. Three lightning stroke were detected. Shishaldin remains at Aviation Color Code ORANGE and Alert Level WATCH.
Shishadin remains at a heightened level of unrest and explosions may occur with little warning." (AVO)
Thursday, Dec 12, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 30000 ft (9100 m) altitude or flight level 300 and is moving at 35 kts in NW direction. ... [more]
Saturday, Nov 30, 2019
Shishaldin Volcano continues to erupt episodically. USGS AVO report that seismic levels were variable throughout the week, with elevated activity early in the week and over the past 36 hours. This was accompanied by strongly elevated surface temperatures suggesting renewed lava effusion. Persistent clouds have obscured observations of eruptive activity in the web cameras. [more]
Wednesday, Nov 27, 2019
The Alaska Volcano Observatory (AVO) reported that seismicity at the volcano has decreased over the past day, but remains elevated. Strongly elevated surface temperatures have been observed in multiple satellite images over the past 24 hours. ... [more]
Sunday, Nov 24, 2019
USGS AVO reports that Shishaldin Volcano has been in an eruptive hiatus over the past several days, with low seismic tremor and only weakly elevated surface temperatures, consistent with cooling lava flows. No anomalous activity has been observed in AVO’s satellite and webcam data, and no ash plumes have been detected. [more]
Thursday, Nov 21, 2019
The Alaska Volcano Observatory reported that the eruption at the volcano continued at variable levels during 13-19 November. ... [more]