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jeudi, avril 12, 2012
Le CVGHM a rapporté que la séismicité au Lewotobi Lakilaki, un des deux stratovolcans incluant Lewotobi, a fluctué, mais a diminué en général pendant la période du 18 septembre 2011 au 25 mars 2012. Aucun changement significatif n'a été observé au volcan. ...
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jeudi, janv. 01, 1970
Augmentation de l'activité sismique et faible à la vapeur du volcan de la pointe sud de Leweotobi (Gunung Lewotobi Perempuan, « Femme de Lewotobi ») avec une hauteur de 1703 m a provoqué une augmentation du niveau d'alerte de 1 (normal) à 2 (alerte). Les résidents et les touristes dans la région sont conseillés de ne pas aborder le volcan.
Lewotobi est l'un des volcans plus actifs de l'île de Flores et la dernière éruption remonte à 2003. ... [details] Lewotobi volcan éruptionsstratovolcan 1703 m / 5,587 ft
Flores, Indonésie, -8.54°S / 122.78°E Liste des éruptions: 2003, 2002, 1999, 1991, 1990, 1971, 1970, 1968-69, 1939-40, 1935, 1932-33, 1921, 1914, 1909-10, 1907, 1889, 1869, 1868, 1865, 1861, 1859(?), 1675 2003 eruptionLewotobi volcano erupted on 30 May 2003. Ash plumes were seen 200 m above the summit and light ash fall occurred at the observatory 5 km from the crater. Small eruptions continued in June and July, producing ashfall in the villages of Bawalatang, Duang, and Boru.On 31 August, a more powerful explosion produced an ash plume to a height of ~2.5 km above the summit that drifted W, incandescent lava bombs ignited forest fires up to 1 km radius from the crater. Ash fall damaged crops on nearby farmland. Following that 2003 eruption, according to the daily Jakarta Post, at least 565 villagers living on the slopes of Lewotobi were affected by sulfur and ash emissions. The residents experienced respiratory problems and skin afflictions. The eruption ended sometime in October. --- Source: GVP monthly activity reports 2002 eruptionAn moderate explosion occurred at the volcano on 12 October 2002, the first activity since 1999.1999 eruptionSmall ash explosions began at Lewotobi volcano on 21 March 1999.The activity consisted typically of weak steam and ash emissions reaching a few 100 m above the summit, sometimes interrupted by more powerful explosions. In April and May, mild strombolian activity with visibly incandescent lava was observed, ejecting bombs to 50-75 m above the crater. A stronger explosion, accompanied by a blast, occurred on 1 July 1999. The explosion threw glowing bombs to more than 500 m distance from the crater, igniting forest fires that burnt vegetation up to 2.5 km north of the volcano. Minor ash fell occurred in an 8 km radius, including the villages of Boru, Bawalatang, and Watukubu. No reports of further activity after July are available, when the eruption probably started to die out. 1991 eruptionMild eruptive activity resumed at the summit crater in the first half and until around July/August of 1991. Mild ash emission and strombolian activity was observed between March-July. The highest reported ash plumes reached about 800 m and incandescent material reached 100 m height above the crater. It was reported that hot ash fall (smelling of sulfur) onto nearby areas caused residents to flee during eruptions in July.1939 eruptionLewotobi volcano erupted on 17 December 1939, exactly 6 years after the start of the previous eruption. It is reported that the eruption caused lapilli fall "like hen eggs" at the Hokeng mission post for 10 minutes.1933 eruptionA powerful ash eruption occurred at Lewotobi volcano on 17 December 1933. Incandescent bombs were visible from Doeang and Nobo. |
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