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Shishaldin volcano (Aleutian Islands, Alaska) activity update: the aviation color code raised to Orange

Sun, 15 Mar 2020, 17:25 | BY: MARTIN
High-resolution satellite image of Shishaldin volcano shows lava (image: Sentinel 2)
High-resolution satellite image of Shishaldin volcano shows lava (image: Sentinel 2)
The Alaska Volcano Observatory (AVO) reported that a high-resolution satellite image shows lava and what appears to be a new cone within the volcano summit crater. Weak seismic tremor has been detected.
No significant ash or lava signatures are apparent outside the summit crater at this time. Eruptive activity could increase with little or no warning resulting in lava flows outside of the crater, lahars, and low-level ash clouds. During the current eruptive cycle, larger ash clouds have also been produced.
The Aviation Color Code raised to Orange and the Alert Level to Watch.
Source: Alaska Volcano Observatory volcano activity update 15 March 2020

Previous news

Wed, 11 Mar 2020, 08:42

Shishaldin volcano (Aleutian Islands, Alaska) activity update: seismic unrest recorded

Shishaldin volcano (image: AVO)
The Alaska Volcano Observatory (AVO) reported that slightly elevated seismicity was detected over the last day. Satellite images indicated steaming and weakly elevated surface temperatures from within the summit vent but no sign of renewed eruptive activity. ... Read all
Wed, 11 Mar 2020, 06:00

Shishaldin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 11 March-17 March 2020 (Continuing Activity)

Lava and a possible new cone in Shishaldin's summit crater were visible in a satellite image on 14 March prompting AVO to raise the Volcano Alert Level to Watch and the Aviation Color Code to Orange. Weak but elevated seismicity was also recorded along with small explosion signals during 14-17 March. Elevated surface temperatures, consistent with lava in the summit crater, were identified in satellite images during 15-17 March. ... Read all
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Shishaldin volcano
Stratovolcano 2857 m / 9,373 ft
Aleutian Islands, Alaska, 54.76°N / -163.97°W
Current status: restless (2 out of 5) Shishaldin volcano eruptions:
2023 (Jul 12-ongoing), 2019 (Jul 23 - 2020 May 4), 2014-15, 2008 (?), 2004, 2002, 2000, 1999, 1997, 1995, 1993, 1986-87, 1981 (?), 1979, 1978, 1976, 1975, 1967, 1963, 1955, 1953, 1951, 1948, 1946-47, 1932, 1929, 1928, 1927, 1925, 1922, 1912 (?), 1901, 1899 (?), 1898, 1897 (?), 1883, 1880-81, 1865 (?), 1842, 1838, 1830, 1927-29, 1826, 1825, 1824, 1790 (?), 1775-78
Typical eruption style
explosive