Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Guaranteed tours:
2-18 Jul 2020: Volcanoes of Java - Java (Indonesia)
11-29 Aug 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
21-31 Aug 2020: Islands of Fire and Whales - Kurile Islands (Russia)
3-19 Sep 2020: Volcanoes of Java - Java (Indonesia)
29 Sep - 5 Oct 2020: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
10-18 Oct 2020: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
Semisopochnoi volcano
Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Current status: restless (2 out of 5)
Semisopochnoi webcams / live data | Reports
Semisopochnoi volcano books
Semisopochnoi volcano eruptions:
2020, 2019, 2018, 1987
Typical eruption style:
unspecified
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8
 

Semisopochnoi volcano news & activity updates:

Semisopochnoi volcano (Alaska) activity update: minor tremor detected; alert level remains at yellow

Wednesday Mar 11, 2020 08:30 AM | BY: MARTIN

The Alaska Volcano Observatory (AVO) reported that the seismic station records intermittent tremor bursts over the past 24 hours but were not accompanied by any infrasound detections.
A clear satellite image showed steam emissions from the North Cerebus crater but no evidence for eruptive deposits on the flanks.
Volcanic Alert Level remains at Level 2.
Source: Alaska Volcano Observatory volcano activity update 11 March 2020
Previous news
Wednesday, Feb 26, 2020
The alert level of the volcano was lowered to yellow, as no recent eruptive activity was detected on high-resolution satellite data from yesterday afternoon, the Alaska Volcano Observatory (AVO) reported (AVO): ... [more]
Seismic signal from Semisopochnoi volcano as recorded on Adak Island (image: AVO)
Thursday, Feb 20, 2020
The Alaska Volcano Observatory (AVO) reported that the seismic unrest continues at the volcano with intermittent, low-level tremor. Tremor bursts lasting from three to twelve minutes every few hours. ... [more]
Sunday, Feb 16, 2020
The Alaskan Volcano Observatory (AVO) raised the Aviation Colour Code and Alert Level for Semisopochnoi to ORANGE/WATCH due to a significant increase in seismic activity as well as small explosions and tremor bursts, lasting from three to twelve minutes every few hours. No ash plumes have been observed. [more]
Semisopochnoi volcano covered by clouds from satellite (image: Sentinel 2)
Friday, Dec 27, 2019
The Alaska Volcano Observatory (AVO) reported that ash plumes reached 5,000 ft (1,500 m) altitude and drifted about 15 km SE on 14 and 17 December. ... [more]
Seismic signal from Semisopochnoi volcano as recorded on Adak Island (image: AVO)
Saturday, Dec 07, 2019
An eruption is probably occurring at the volcano. The Alaska Volcano Observatory (AVO) detected seismic signals of strong volcanic tremor, probably corresponding to the arrival of magma in the summit vent, but the nature of the eruption itself is unclear: ... [more]

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.
Home | Travel | Destinations | Volcanoes | Photos | Earthquakes | About | Glossary | News | Contact | Privacy | Imprint || Français | Deutsch
Follow us: