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Satellite image of Ol Doinyo Lengai volcano by (c) Google Earth View
Satellite image of Ol Doinyo Lengai volcano by (c) Google Earth View
Ol Doinyo Lengai vulkaan
Stratovulkaan 2890 m
Tanzania, -2.75°S / 35.9°E
Current status: restless (2 out of 5)
Ol Doinyo Lengai webcams / Live-gegevens | Reports
Ol Doinyo Lengai vulkaan boeken | Tours
Ol Doinyo Lengai vulkaanuitbarstingen:
1550 BC (?), 50 AD (?), 700 AD (?), 1350 (?), 1880, 1882, 1904, 1907, 1914, 1916, 1921, 1926, 1940, 1954, 1955, 1958, 1960, 1967, 1983, 1994, 2006, 2007-ongoing
Typical eruption style:
Explosive activity. In addition, at least during the past +-30 years near-continuous effusion and mildly explosive eruption of natrocarbonatite lava from vents inside the crater, sometimes overflowing over the rim, is taking place.
Laatste aardbevingen in de omgeving
Meest recente satellietbeelden
 

Ol Doinyo Lengai volcano news and activity updates:

Ol Doinyo Lengai volcano (Tanzania), activity update: ash fall, closure of Moiravo Tented Lodge

Thursday Sep 06, 2007 18:39 PM |

It seems that the eruption at Lengai is indeed a major event and that explosive activity has taken or is taking place in addition to lava flows and probably, bush fires. According to local sources from the nearby Moivaro - Lake Natron Camp, Lengai first erupted at midnight and at 6 am on 4 September. A pilot reported ash rising to 20,000 ft (ca. 6 km). Ashfall was reported from Engaresero Village, but there are no reports on injuries or fatalities. The highly regarded Moivaro Tented Lodge near Lake Natron has been temporarily evacuated.


Scientists including Matthieu Kervyn warn to approach the volcano as it could develop into a major explosive, crater-clearing eruption such as in 1966-67. Extremely dangerous pyroclastic flows could be and are likely to be associated if the eruption escalates. 

Vorig nieuws
Satellite image of the eruption at Lengai volcano (image: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team)
Thursday, Sep 06, 2007
A large eruption seems to be taking place at Lengai volcano, this time for real: On 4 Sept., reports started coming in that a large (natrocarbonatite?) lava flow is descending the West flank. A considerable ash plume was visible on satellite data.
... [meer...]
Monday, Jul 23, 2007

As more news has become available, the news about an effusive flank eruption at Lengai around 15 July turns out to be probably false. The observed "ashcloud" was dust from a landslide. This demonstrates how difficult it is in this area to have robust information. The ongoing seismic activity in the Gregory Rift, however, is quite peculiar.

... [meer...]
Thursday, Apr 05, 2007

Thomas, our correspondant in Arusha climbed Lengai last week and reports indirect signs of activity near the western rim of the crater, at the place where lava overflowed in the March 2006 eruption.
this is his report:

... [meer...]
Glow from nearby (but hidden) lava pooling somewhere beneath the collapse pit in Lengai's crater (taken on evening of 31 Jan 07).
Tuesday, Feb 20, 2007

During our latest expedition to the active crater of Lengai volcano from early 31 Jan - 2 February 2007, no eruption of natrocarbonatite lava occured from the summit vents. According to local Maassai guides, the central area of the crater with the large collapse pit near the tall hornito T49b had not seen significant changes since last summer. 
From an open vent in the NE corner at the bottom of the pit at the base of the hornito, loud washing-machine like sounds of boiling lava was audible all the time. A large pool of lava must be found somewhere at very shallow depths in some caverns beneath that area. This assumption is confirmed by the glow of lava that was clearly visible one night from a second, smaller vent located about 30 m south of the large vent in the base of the collapse pit. One guide confirmed he had seen spattering of lava from this vent some two weeks earlier.

... [meer...]
Saturday, Apr 15, 2006

More detailed information about the recent activity at Lengai has emerged: there was probably no explosive eruption as reported earlier, but one or two very large effusive paroxysms: the first eruption occurred on 29 March, the second probably on 3 April. The eruptions produced large-volume natrocarbonatite lava flows that overflowed the crater to the West near the climbing route, travelled for more than 1 km length through a small canyon before stopping less than two km from a Maassai village at the base of the mountain.
Buring vegetation ignited by the lava might have produced smoke that had been mistaken for ash. No evacuations have taken place and no one has left the area, different from early news reports.

... [meer...]

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