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Kavachi volcano is a shallow submarine volcano located south of the remote Vangunu Island in the Solomones. It is als known as Rejo te Kvachi, "Kavachi's Oven", and one of the most active of the Pacific with near surface eruptions every few years that often build temporary islands.
New islands were formed at least 9 times since its first recorded eruption during 1939. The new islands formed were not large enough and coated with solid lava flows to be able to resist wave erosion. They were submerged again after a few months after each eruption.
The frequent shallow submarine eruptions that sometimes breach the surface produce surtseyan activity, magma-water explosions that eject jets of steam, ash, and incandescent bombs above the sea surface. On some occasions during such eruptions, the vent was sealed sufficiently to produce liquid lava spattering and lava flows on the temporary islands.
submarine volcano -20 m / -66 ft
Solomon Islands, -9.02°S / 157.95°E
Current status: normal or dormant (1 out of 5)
| ReportsKavachi volcano books
Kavachi volcano eruptions:
2014, 2007, 2004, 1999-2003, 1999 (Feb-May), 1998 (?), 1997, 1991, 1986, 1985, 1982, 1981 (Sep) (?), 1980-81, 1978, 1977 (Jul), 1977 (Feb), 1976, 1975, 1974, 1972, 1969-70, 1966, 1965, 1963-64, 1962, 1961, 1958, 1957, 1952-53, 1951, 1950, 1942, 1939
Typical eruption style:island-building, submarine
Last earthquakes nearby
Latest satellite images 
Kavachi volcano (Solomon Islands) news:
Mon, 16 Jun 2014, 10:20
Some intermittent eruptive activity seems to be occurring at the volcano. On 10 June, another spot of discolored water had been visible above the shallow submarine volcano.
Sat, 24 May 2014, 11:05
Satellite images showing a discolored water plume from Kavachi (NASA, compiled and annotated by Culture Volcan) It is likely that some volcanic activity has continued intermittently at the undersea volcano after a discolored water plume was first spotted on 29 January this year. ...moreAlthough no further signs of activity were visible on clear days after the first sightings, satellite images from 21 March and 8 May, compiled by Culture Volcan, showed again significant plumes originating from the volcano. This suggests that activity (if any) has been occurring in short-lived pulses rather than continuously. [ less]
Sun, 2 Feb 2014, 09:51
MODIS / Terra satellite image last night showing the eruption site with the discolored water and perhaps a small steam plume What could be a small steam plume above the submarine volcano is visible on the latest reasonably clear satellite image from 12 hours ago. It does not look as if the volcano has breached the surface (yet).
Sat, 1 Feb 2014, 09:02
The discolored water plume from Kavachi volcano (NASA Earth Observatory image by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team. Caption by Robert Simmon) A submarine eruption is likely occurring at the submerged volcano. A NASA satellite image from 29 Jan shows a plume of discolored sea water swirling and drifting from the location of the volcano. The discoloration is likely from suspended volcanic sediments (the fragmented lava) and gasses. ...moreKavachi is an undersea volcano on the southern edge of the Solomon Islands in the western Pacific Ocean. It erupted dozens of times in the 20th century, often breaking the water surface, only to be eroded back below the water line within a few months. Whether the new eruption will break the surface and create another new island remains to be seen. Directly above the undersea peak, a bright patch is visible that suggests vigorously churning water—but there is no sign that the eruption has broken the surface. (NASA) [ less] [ read all]
Sun, 10 Jan 2010, 11:20
2 large earthquakes magnitude 7.2 and 6.5 occurred 88 km NW of Kavachi volcano at 9:36 and 9:48 am local time on 4 January 2010. ...moreThe earthquake did not cause fatalities, but destroyed about 500 mones and produced a small tsunami that hit the uninhabited Tetepare Island and nearby coasts. Landslides occurred on Tetepare and Rendova islands. The largest aftershock was a quake of magnitude 6.3 that hit 40 km SW of Kavachi volcano on 9 January. (Source: ReliefWeb) [ less] [ read all]
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