Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
9-22 Feb 2019: Desert, salt and volcanoes - Danakil desert (Ethiopia)
2-17 May 2019: From Krakatau to Bali - Java (Indonesia)
4-11(12) May 2019: Fascination Volcano - Santorini Island (Greece)
4-12 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
11-19 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
7-12 Jun 2019: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
8-16 Jun 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
14-30 Jun 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
8-23 Jul 2019: From Krakatau to Bali - Java (Indonesia)
13-29 Aug 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
Gamkonora volcano
Stratovolcano 1635 m / 5,364 ft
Halmahera, Indonesia, 1.38°N / 127.52°E
Current status: normal or dormant (1 out of 5)| Reports
Gamkonora volcano books
Gamkonora volcano eruptions:
1564, 1673 (possibly very large Plinian eruption), 1885, 1911, 1917, 1926, 1949, 1950, 1951, 1952, 1981, 1987, 2007, 2013
Typical eruption style:
Explosive.
Last earthquakes nearby
Latest satellite images
Satellite image of Gamkonora volcano (by Google Earth View)
Satellite image of Gamkonora volcano (by Google Earth View)
 

Gamkonora volcano (Indonesia): seismic swarm triggers eruption alert

Monday May 27, 2013 14:38 PM | BY: T

Increased earthquake activity has triggered an eruption alert by VSI, who raised the volcano's status to 3 ("Siaga", "warning") out of 4 this morning. Indonesian volcanologists reported that the degassing plume from the summit crater of the volcano has turned dark, which suggests the presence of ash (probably phreatic in origin) since 25 May.
The seismicity has shown significant changes with the appearance of harmonic tremor, low-frequency "tornillo" type-earthquakes (known from Galeras volcano in Colombia to often precede explosions). Volcanic-tectonic quakes (VA-type) related to rock fracturing have increased a lot, suggesting that magma at depth is intruding into new dykes.
No ash plumes have been detected on satellite images. The last activity of Gamkonora goes back to January, when it produced some small phreatic explosions.
Previous news
Friday, Sep 14, 2012
CVGHM reported that on 7 September the Alert Level for Gamkonora was lowered from 3 to 2 (on a scale of 1-4). [more]
Sunday, Jun 17, 2012
The alert level of Gamkonora volcano on the island of Halmahera, Indonesia, was raised to 3 (eruption warning) on 13 June, following an increase in seismic activity and steaming. ... [more]
Tuesday, Jul 17, 2007

After last week's intense ash eruptions generating plumes 2-3 km high, Gamkonora volcano has quieted down over the past days. Since July 13, seismicity has decreased sharply and no new larger ash eruptions have occurred since then.The Indonesian Volcanological Survey has lowered the alert level and many villagers who had been evacuated from the slopes of the volcano have returned home.

... [more]

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.