Beginning at about 07:40 UTC on April 29, 2015, the Overlook crater lava lake overflowed its rim on several occasions, sending short, lobate sheets of pāhoehoe as far as 130 m (142 yds) across the floor of Halemaʻumaʻu Crater, HVO reported in their information statem
New activity/unrest was observed at 5 volcanoes from April 22 – 28, 2015. During the same period, ongoing activity was observed at 26 volcanoes.New activity/unrest: Barren Island, Andaman Islands (India) | Calbuco, Chile | Kilauea, Hawaiian Islands (USA) | Sinabung, Ind
The summit of Kīlauea volcano continues to inflate, and the summit lava lake rose to within about 2 meters (~7 feet) of the Overlook crater rim on Monday, April 27, 2015, according to Kilauea activity report issued by Hawaiian Volcano Observatory (HVO) yesterday. This
After 43 years of sleep, Chile's Calbuco volcano experienced a major eruption on April 22, 2015 ejecting ash plume up to 12.1 km. A 20 kilometer exclusion zone was established around the volcano and over 4 000 people within this exclusion zone were evacuated during
Darwin VAAC reports an ash plume up to 2.4 km (8 000 feet) was observed above the Manam volcano, Papua New Guinea at 00:30 UTC on April 27, 2015. It extended about 111 km to the west.A pronounced SO2 plume can be seen on satellite data as well, Volcano Discovery reports
The “seismic crisis” around the region of the Chiles and Cerro Negro de Mayasquer volcanoes near the Columbia-Ecuador border is likely caused by intruding magma, according to a report by R. Corredor Torres of the Servicio Geológico Colombiano and coll
A team of University of Utah seismologists discovered and made images of a reservoir of hot, partly molten rock about 19 to 45 km (12 to 28 miles) beneath the Yellowstone supervolcano, and it is 4.4 times larger than the shallower, long-known magma chamber.The hot rock
New activity/unrest was observed at 6 volcanoes from April 15 – 21, 2015. During the same period, ongoing activity was observed at 15 volcanoes.New activity/unrest: Chikurachki, Paramushir Island (Russia) | Raung, Eastern Java (Indonesia) | Sinabung, Indonesia | Tongari
A major explosive eruption started at Chile's Calbuco volcano at 21:05 UTC on April 22, 2015 (18:05 local time). By 22:08 UTC, ash plume rose up to 12.1 km (40 000 feet), Buenos Aires VAAC reported. Aviation Color Code was raised to Red. The last eruption of this vo
According to Peru's Observatorio Volcanológico del Sur (OVS) snow melt during April 12 – 13, 2015 led to large lahars that descended the southern flank of Ubinas volcano blocking off access to the town of Ubinas. Authorities are warning locals to be on alert.
