Marapi volcano (Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 July-26 July 2005 (New Activity / Unrest)
DVGHM raised the Alert Level at Marapi from 1 to 2 on 18 July after the number of earthquakes increased dramatically during 8-14 July. During this period, the volcano's seismic network recorded 112 deep volcanic earthquakes. Normally, an average of 7 deep volcanic earthquakes occur in 1 week.
mer., 20 juil. 2005, 06:0006:00 AM | AUTEUR : VN
No significant activity changes were seen at the volcano; gas emissions rose ~50 m above the summit (9,650 ft a.s.l.) and fumarole temperatures were normal.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
From: Global Volcanism Program, 2005. Report on Marapi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 20 July-26 July 2005. Smithsonian Institution and US Geological Survey.
mer., 4 août 2004, 06:00
Marapi volcano (Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 August-10 August 2004 (New Activity / Unrest)
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. ... Read all
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