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Dempo volcano (Sumatra, Indonesia): seismic unrest, alert level raised

Wed, 29 Apr 2015, 21:21
21:21 PM | BY: T
Seismicity at Dempo volcano (PVMBG)
Seismicity at Dempo volcano (PVMBG)
PVMBG raised the alert level of the volcano to 2 (waspada, "watch" on a scale of 1-4) because of increased seismic activity (mainly tremor and volcanic-tectonic earthquakes).
It is recommended not to approach the crater within 1 km.
The volcano's crater contains a large acid lake and a very active hydrothermal system. Phreatic or phreatomagmatic explosions could occur any time and would pose a significant risk.
The last eruptions in 2006 and 2009 were both phreatic.

Previous news

Wed, 29 Apr 2015, 06:00

Dempo volcano (Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 April-5 May 2015 (New Activity / Unrest)

Observers at the PVMBG Dempo observation post reported that during 0730-0900 on 27 April diffuse gray-white plumes rose 50 m above Dempo crater. Seismicity had increased during April as compared to the previous month. On 29 April the Alert Level was raised to 2 (on a scale from 1-4). ... Read all
Sat, 18 Aug 2012, 10:05

Dempo volcano (Sumatra, Indonesia) activity update: false eruption report on 18 Aug

A possible eruption reported on 18 Aug in a VAAC report mentioning a possible ash plume to 30,000 ft was confirmed to be false. ... Read all
Show more
Dempo volcano
Stratovolcano 3173 m (10,410 ft)
Sumatra (Indonesia), -4.02°S / 103.12°E
Current status: normal or dormant (1 out of 5) Dempo volcano eruptions:
1817, 1839(?), 1853, 1879, 1880, 1881, 1881, 1884, 1895, 1900, 1900, 1905, 1908, 1921, 1923, 1926, 1934, 1936, 1939, 1939-40, 1964, 1973, 1994, 2006, 2009
Typical eruption style
Small - moderate explosive eruptions.
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