Great Sitkin volcano news & activity updates:
Great Sitkin volcano (Aleutian Islands, Alaska): Aviation Color Code and Alert Level lowered to GREEN/NORMAL
The Alaska Volcano Observatory (AVO) reported that a seismicity has been decreasing during the past few months.
jeu., 22 oct. 2020, 06:3206:32 AM | AUTEUR : MARTIN
No eruptive activity or increased surface temperatures was detected in the satellite images.
The Alaska Volcano Observatory is returning the Aviation Color Code and Alert Level to GREEN/NORMAL to reflect these background conditions.
Source: Alaska Volcano Observatory volcano activity update 22 October 2020
mer., 16 sept. 2020, 12:05
Great Sitkin volcano (United States, Aleutian Islands) activity update: Small local earthquakes have continued to occur over the past 24, suggesting signs of elevated unrest above known background level however no eruptive activity has yet been detected.
jeu., 30 juil. 2020, 21:35
The Alaskan Volcano Observatory (AVO) report low-level unrest at Great Sitkin continues. Occasional small local earthquakes have occurred at the volcano over the past day. No explosive activity was detected by infrasound sensors. No activity was observed in cloudy satellite and web camera imagery. ... lire toutes
mer., 15 juil. 2020, 10:57
Today at 08:59 local time Alaska Volcano Observatory (AVO) recorded tectonic earthquake with magnitude M 5.3 at 8.5 km depth about 55 miles (90 km) west-northwest of Great Sitkin volcano. ... lire toutes
ven., 20 mars 2020, 05:19
AVO report that small local earthquakes continued over the past day beneath Great Sitkin volcano. No significant activity was observed in cloudy satellite and clear web camera images. ... lire toutes
lun., 9 mars 2020, 08:01
Great Sitkin volcano (Aleutian Islands, Alaska) activity update: relatively large earthquake detected
The Alaska Volcano Observatory (AVO) recorded on 6 March at 06:31 local time relatively large earthquake with magnitude M 3.5. It was located approx. 1 km east-southeast of the summit at shallow depths (not more than 2 km below sea level). Since the quake, seismic activity has returned to lower levels, and no eruptive activity has been detected in infrasound or satellite data today. Although this earthquake represents a significant increase in the seismic activity at the volcano, it does not mean that an eruption is imminent. AVO is closely monitoring the volcano for other signs of unrest that may indicate increased activity or likelihood of an eruption. lire toutes