Machin volcano
stratovolcano 2650+ m / 8,694 ft
Colombia, 4.48°N / -75.39°W
Current status: restless (2 out of 5)
Machin webcams / live data | Reports
Machin volcano books
Colombia, 4.48°N / -75.39°W
Current status: restless (2 out of 5)
Machin webcams / live data | Reports
Machin volcano books
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Last update: 13 May 2020 (seismic unrest)
Typical eruption style: explosive
Machin volcano eruptions: 1180 ± 150, 2100 BC ± 200, 2240 BC ± 300, 3800 BC ± 150
Typical eruption style: explosive
Machin volcano eruptions: 1180 ± 150, 2100 BC ± 200, 2240 BC ± 300, 3800 BC ± 150
| Time | Mag. / Depth | Distance | Location |
The last known activity took place about 800 years ago.
Background:
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:
 A weak glow from shallow magma is visible from one of the holes in the floor of the collapse pit. Moving magma is audible with sloshing sounds similar to a washing machin... |  Sieving (?) machinery and vertical elevator in the lower middle section of the processing plant, probably used during an intermediate stage of mine operation. (Photo: Tom... |  Rusting machinery in the main boiler room. (Photo: Tom Pfeiffer) |
 Old machinery (Photo: Tom Pfeiffer) |
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)
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).
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)
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)
Latest satellite images
See also: Sentinel hub | Landsat 8
