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jeudi, mai 16, 2013
No changes have occurred - the only signs of activity are small earthquakes, mostly related to rock fracturing inside the volcano SE of the main dome. The alert status remains at yellow.
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dimanche, avril 14, 2013
On April 13 at 15:54 (local time), a volcano-tectonic earthquake of magnitude 2.8 associated with rock fracturing within the volcanic edifice occurred southwest of the main dome a depth of 7.4 km, and was felt by residents near the volcano, in the municipality of Cajamarca, in the village of Toche and the area known as Moral (Tolima).
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Machin volcanstratovolcan 2650+ m / 8,694 ft
Colombie, 4.48°N / -75.39°W Condition actuelle: en vigilance - niveau agité (2 sur 5) Machin webcams / live data
Dernière mise à jour: 16 mai 2013
Style éruptif tipique: Explosive Eruptions du volcan Machin: 1180 ± 150, 2100 BC ± 200, 2240 BC ± 300, 3800 BC ± 150 Machin photos du volcan Derniers séismes proches:
The last known activity took place about 800 years ago. Introduction:The small Machín stratovolcano forms the southern end of the Ruiz-Tolima massif. It contains a 3-km-wide caldera breached to the south. There are 3 forested dacitic lava domes inside the caldera.Machin Photos:
2011 unrest
The number of earthquakes increased at Machin volcano on 31 December 2010. Over the next 4 days, 367 volcano-tectonic earthquakes were recorded south and southwest of the main lava dome in the summit caldera. The largest event occurred at 5:22 pm on 1 January 2011, with a magnitude 2.3 at a depth of 3.3 km. The earthquake was felt by residents in vicinity of the volcano and in the town of Cajamarca (Tolima). (USGS / GVP weekly reports) 2008 seismic unrest
An earthquake swarm occurred at Machín volcano on 9 November 2008. The increase in earthquakes was accompanied by an increase in fumarolic activity and there was damage to some buildings (USGS / GVP weekly reports). 2004 seismic unrest
In April 2004, a swarm of earthquakes occurred at Machín volcano. More than 60 earthquakes occurred daily, in comparison to the normal number of 1-10 quakes. (USGS/GVP weekly updates) |
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