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Latest Karthala volcano news:
Wednesday, Aug 08, 2012
No recent news about activity at Karthala have become available and there is no hot spot visible on satellite imagery. Therefore, we set the current status back to "Green" (quiet). [more]
Thursday, May 17, 2012
Observers in the villages of Mde and Mkazi, on the W flank of Karthala, reported increased incandescence from the summit during the night of 9-10 May. [more]

Karthala volcano

Shield volcano 2361 m (7,746 ft)
Comoros, -11.77°S / 43.36°E
Current status: dormant (1 out of 5)
Last update: 9 Sep 2012 (unknown, probably quiet)
Typical eruption style: Effusive. Temporary lava lakes.
Karthala volcano eruptions: 1808, 1814, 1821, 1828, 1830, 1833, 1848, 1850, 1855, 1857, 1858, 1859, 1860, 1862(?), 1872, 1876, 1880, 1883-84, 1904, 1910, 1918, 1928, 1948, 1952, 1956, 1965, 1972, 1977, 1991, 2005, 2005, 2006 Karthala with the lava lake in the summit crater (2006 eruption) No recent earthquakes
TimeMag. / DepthDistanceLocation
Karthala is a large shield volcano with a summit caldera on La Grande Island of the Comores in the eastern Indian Ocean. It erupts every few years and often produces voluminous lava flows and sometimes has a lava lake in the crater of the caldera.

Background:

Karthala, a typical and very active shield volcano, forms the southern part of the Comores island La Grande Comore (also known as Ngazidja Island). It erupted twice in 2005 and caused major problems due to extensive ash fall and contamination of drinking water.

Karthala has an elongated 3 x 4 km summit caldera created by repeated collapse, and has elongated rift zones extend to the NNW and SE from the summit. Historical eruptions both from summit and flank vents have repeatedly modified the shape of the caldera. Many lava flows have reached the sea on both sides of the island. A lava flow during the euption in 1860 traveled from the summit caldera about 13 km to the NW, reached the sea at the western coast north of the capital city of Moroni.

Karthala Photos:





Background:

Karthala, a typical and very active shield volcano, forms the southern part of the Comores island La Grande Comore (also known as Ngazidja Island). It erupted twice in 2005 and caused major problems due to extensive ash fall and contamination of drinking water.


Karthala has an elongated 3 x 4 km summit caldera created by repeated collapse, and has elongated rift zones extend to the NNW and SE from the summit. Historical eruptions both from summit and flank vents have repeatedly modified the shape of the caldera. Many lava flows have reached the sea on both sides of the island. A lava flow during the euption in 1860 traveled from the summit caldera about 13 km to the NW, reached the sea at the western coast north of the capital city of Moroni.


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