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Gamkonora volcano

Actualizado: 27 nov. 2022 18:58 GMT -
Stratovolcano 1635 m / 5,364 ft
Halmahera (Indonesia), 1.38°N / 127.52°E
Current status: normal or dormant (1 out of 5)
Last update: 6 jul 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

The 1635 m high stratovolcano fo Gamkonora is the highest peak on Halmahera.
It has had shifting shifting eruption centers that have produced an elongated series of summit craters along a N-S trending rift. Young-looking lava flows originate near the cones of Gunung Alon and Popolojo, south of Gamkonora.

Since its first recorded eruption in the 16th century, Gamkonora has typically produced small-to-moderate explosive eruptions. Its largest historical eruption, in 1673, was accompanied by tsunamis that inundated villages and killed many people.
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Source: GVP, Smithsonian Institution

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Typical eruption style: Explosivos.
Erupciones del volcán Gamkonora: 1564, 1673 (possibly very large Plinian eruption), 1885, 1911, 1917, 1926, 1949, 1950, 1951, 1952, 1981, 1987, 2007, 2013

Latest nearby earthquakes

Fecha / HoraRevista / Prof.Distancia/Ubicación
viernes, 25 noviembre 2022 GMT (2 sismos)
26 nov 2022 00:11 (GMT +9) (25 nov 2022 15:11 GMT)
3.1

33 km
51 km (32 mi)
Molucca Sea, 99 km al norte de Ternate, North Maluku, Indonesia
25 nov 2022 11:36 (GMT +9) (25 nov 2022 02:36 GMT)
3.5

127 km
39 km (24 mi)
Molucca Sea, 75 km al norte de Ternate, North Maluku, Indonesia


2007 eruption
A phreatic eruption occurred at Gamkonora volcano on 8 July 2007, producing an 800 m high ash plume and causing light ash fall in up to 7 km distance downwind in the villages Gamkonora, Tobelos, Sarau, Talaga and Bataka. In the following days incandescent material was observed ejected 50 m above the crater, and ash emissions reached altitudes of 4 km. The eruption promted the evacuation of 8000 residents living near the volcano.

1987 eruption
On 13 April 1987, ash eruptions occurred at Gamkorona and ash clouds reached a height of 700 m above the crater. Small explosions were noted also on 21, 24, 25, and 26 April, producing minor ashfall in the immediate surroundings of the volcano. There are no reports of damage or evacuations.

1981 eruptions
Gamkonora volcano erupted on 19 July 1981 with explosions producing ash. Ash plumes reached 700 m above the crater and ash fell in up to 5 km distance south of the volcano. Over 3500 people were evacuated from nearby villages. On 22 July, incandescence was observed from the crater and explosions were accompanied by booming noises heard in a village at the NNW foot of the volcano in 5 km distance.
After the eruption was declared to be small and not posing immediate threats by Indonesian volcanologists, the evacuated returned to their homes.

See also: Sentinel hub | Landsat 8 | NASA FIRMS

mié, 6 jul 2022, 14:00

Gamkonora volcano (Halmahera) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 June-5 July 2022 (Continuing Activity)

PVMBG reported that diffuse white plumes rose 20-60 m above Gamkonora's summit were visible during 1 January-29 June, and no other changes were observed. Deep and shallow volcanic earthquakes were rarely recorded. On 30 June the Alert Level was lowered to 1 (on a scale of 1-4). ... Read all
dom, 3 jul 2022, 20:23

Gamkonora volcano (Halmahera, Indonesia): alert status dropped to Level 1

The seismic activity at Gamkonora volcano since 1 Jan this year (image: PVMBG)
The PVMBG volcano observatory lowered the alert level for the volcano to Level 1 today, as seismic, ground deformation, thermal and gravimetric data have showed signs of a decreasing activity over the past half year. ... Read all
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