![]() A steep-sided lava dome, emplaced during the 1974 eruption, occupies the center of the crater. The volcano is a composite structure consisting of an older dissected volcano and a younger parasitic cone with a ~1 mile (1.5 km)-diameter summit crater. It is located 26 miles (43 km) east of the community of Adak. Great Sitkin Volcano is a basaltic andesite volcano that occupies most of the northern half of Great Sitkin Island, a member of the Andreanof Islands group in the central Aleutian Islands. Great Sitkin is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks. More than twenty earthquakes were located beneath Great Sitkin over the past week, but the earthquakes were all small with magnitudes lower than 1. Weakly elevated surface temperatures and a steam plume were observed in satellite data this week in mostly cloudy viewing conditions. Multiple satellite radar images this week showed that the lava continues to slowly move to the east into the intracrater glacier. Lava continued to erupt slowly at Great Sitkin over the past week, adding to a thick lava flow confined to the summit crater. With Linux and ZFS, QuTS hero supports advanced data reduction technologies for further driving down costs and increasing reliablility of SSD (all-flash) storage.Friday, June 30, 2023, 12:29 PM AKDT (Friday, June 30, 2023, 20:29 UTC)ĥ2☄'35" N 176☆'39" W, Summit Elevation 5709 ft (1740 m) QuTS hero is the operating system for high-end and enterprise QNAP NAS models. WIth Linux and ext4, QTS enables reliable storage for everyone with versatile value-added features and apps, such as snapshots, Plex media servers, and easy access of your personal cloud. QTS is the operating system for entry- and mid-level QNAP NAS.
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