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Karthala volcano (Grand Comore Island) - Smithsonian / USGS Weekly Volcanic Activity Report for 31 August-6 September 2022 (New Activity / Unrest)

Wed, 7 Sep 2022, 14:00
14:00 PM | BY: VN
According to the Direction Générale de la Sécurité Civile – Comores, the Observatoire Volcanologique du Karthala (OVK) reported that a significant increase in the number of small earthquakes beneath Karthala's W flank began to be detected on 15 July. The abnormal activity persisted, so on 16 August the Alert Level was raised to Yellow (the lowest level on a three-level scale) and residents were asked to limit activities on and around the volcano. On 5 September OVK recommended that the Alert Level remain at Yellow.

Source: Direction Générale de la Sécurité Civile – Comores
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From: Global Volcanism Program, 2022. Report on Karthala. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 31 August-6 September 2022. Smithsonian Institution and US Geological Survey.

Previous news

Thu, 1 Sep 2022, 10:00

Karthala volcano (Grand Comore Island) - Smithsonian / USGS Weekly Volcanic Activity Report for 31 August-6 September 2022 (New Activity / Unrest)

According to the Direction Générale de la Sécurité Civile – Comores, the Observatoire Volcanologique du Karthala (OVK) reported that a significant increase in the number of small earthquakes beneath Karthala's W flank began to be detected on 15 July. The abnormal activity persisted, so on 16 August the Alert Level was raised to Yellow (the lowest level on a three-level scale) and residents were asked to limit activities on and around the volcano. On 5 September OVK recommended that the Alert Level remain at Yellow. ... Read all
Wed, 31 Aug 2022, 16:17

Karthala volcano (Grande Comores Island): alert level raised as small tremors continue

The summit caldera of Karthala volcano (image: Julie Morin)
The large shield volcano on La Grande Comores Island is showing signs of unrest. Since mid July, volcanologists from the local volcano observatory have been recording a significant increase in small earthquakes beneath the volcano. These could be a sign that magma has been accumulating underneath or inside the volcanic edifice and might be heralding a new eruption in a near to medium-term future. ... Read all
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Karthala volcano
Shield volcano 2361 m (7,746 ft)
Comores, western Indian Ocean, -11.77°S / 43.36°E
Current status: restless (2 out of 5) 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
Typical eruption style
Effusive. Temporary lava lakes.
Karthala volcano (c) Google
Karthala volcano (c) Google
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