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JMA reported that seven explosive eruptions from Showa Crater at Aira Calderas Sakurajima volcano during 14-22 July ejected ballistics 500-800 m from Showa crater. In general, volcanic earthquakes decreased and tremor increased. The Tokyo VAAC reported that during 16-20 July plumes rose to an altitude of 2-3 km (7,000-10,000 ft) a.s.l. and drifted E and SE; on 22 July a plume rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted N. The Alert Level remained at 3 (on a scale of 1-5).
Sources: Japan Meteorological Agency (JMA) ,Tokyo Volcanic Ash Advisory Center (VAAC)
KVERT reported weak to moderate seismic activity indicating that Strombolian activity continued at Karymsky during 11-18 July. Satellite views were obscured by clouds or the imagery showed no activity. The Aviation Color Code remained at Orange.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
During 16-22 July HVO reported that the circulating lava lake occasionally rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. Gas emissions remained elevated. The plume from the vent continued to deposit variable amounts of ash, spatter, and Pele's hair onto nearby areas; smaller particles may have been dropped several kilometers away. A 27 June breakout of lava flowed in an incipient lava tube from the vent to the gentle break in slope at the base of Pu`u `O`o, and continued slowly moving in two main lobes that extended about 2 km NE. Two small lava ponds within cones are present within the two southeastern pits in the crater floor, and glow above two other pits indicated lava is near the surface.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
KVERT reported that during 11-18 July lava-dome extrusion onto Shiveluchs SE flank was accompanied by moderate ash explosions, incandescence of the dome summit, hot avalanches, and fumarolic activity. Satellite data showed a thermal anomaly over the volcano on 16-17 July. An eruption was reported to 8.2 km (27,000 ft) a.s.l. on 18 July. The Aviation Color Code remained at Orange.
Sources: Kamchatkan Volcanic Eruption Response Team (KVERT),Tokyo Volcanic Ash Advisory Center (VAAC)