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Marapi volcano (Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 August-10 August 2004 (New Activity / Unrest)

mer., 4 août 2004, 06:00
06:00 AM | AUTEUR : VN
Increased volcanic activity at Marapi during early August led DVGHM to raise the Alert Level to 2 from 1 (on a scale of 1-4) on 5 August. Ash explosions rose 500-1,000 m above the summit and no seismic data were available. Visitors and villagers in the Tanah Datar and Padang Panjang districts were advised not to climb the volcano.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
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From: Global Volcanism Program, 2004. Report on Marapi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 4 August-10 August 2004. Smithsonian Institution and US Geological Survey.

Actualités précédentes

mer., 2 mai 2001, 06:00
VSI reported that volcanic activity continued at Marapi at a decreased level in comparison to the previous week. Thirty explosions were observed and an ash plume rose 3 km above the summit. Tephra fell up to 4 km in radius from the crater. Marapi remained at Alert Level 2 (on a scale of 1-4). ... Read all
mer., 25 avril 2001, 06:00
VSI reported that the Marapi eruption at 0814 on 16 April produced a cauliflower-shaped black ash plume that rose 2 km above the summit. Ash, lapilli, and volcanic bombs were ejected during the eruption and fell within the crater. In addition, ash fell in many villages on the S and SW flanks of the volcano. ... Read all
mer., 18 avril 2001, 06:00
Based on information from VSI, the Darwin VAAC reported that after increased volcanic activity occurred over the preceding two weeks VSI raised the Alert Level at Marapi from 1 to 2. The increased activity included an eruption on 16 April that sent an ash cloud up to 2 km above the summit. In addition, an eruption on about 23 April produced an ash cloud that rose up to ~6 km a.s.l. and drifted to the E. ... Read all
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