Melimoyu Volcano
Updated: 19 avril. 2024 21:46 GMT -
stratovolcano 2400 m / 7,874 ft
Argentine/Chili (sud) (Amérique du Sud), -44.08°S / -72.88°W
Condition actuelle: normal / en sommeil (1 sur 5)
Argentine/Chili (sud) (Amérique du Sud), -44.08°S / -72.88°W
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 14 déc. 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)
Melimoyu is an active stratovolcano in southern Chile, 40 km NW of the town of Puyuhuapi and 135 km south of Chaiten volcano.
The volcano has an 8 km wide ice-filled caldera, which is largely filled by a younger edifice and is drained by a glacier flowing through a gap in the NE caldera rim. The basaltic-andesite volcano is elongated 10 km in an E-W direction and has several cinder cones and a 1 km wide summit crater.
Two large explosive eruptions have been identified at Melimoyu volcano from tephra layers (MEL-1 and MEL-2) and been dated to ca. 1800 and 2800 years ago.
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Eruptions du volcan Melimoyu: 200 AD ± 75 years, 820 BC ± 100 years (radiocarbon dated)
Derniers séismes proches
| Heure | Mag. / Profondeur | Distance / Lieu | |||
Eruptions du volcan Melimoyu
2010 Seismic unrest
A weak seismic swarm occurred at Melimoyu volcano in May and June 2010 and its alert level was raised to 2 (Green) on 8 June, 2010.
Increased seismic activity was detected during May. 9 long-period earthquakes were measured on 27 May. The next day 6 long-period earthquakes preceded 2 separate seismic swarms, located 2-12 km and 7-14 km south beneath the summit. All earthquakes were M 2.5 or less.
(GVP monthly reports)
A weak seismic swarm occurred at Melimoyu volcano in May and June 2010 and its alert level was raised to 2 (Green) on 8 June, 2010.
Increased seismic activity was detected during May. 9 long-period earthquakes were measured on 27 May. The next day 6 long-period earthquakes preceded 2 separate seismic swarms, located 2-12 km and 7-14 km south beneath the summit. All earthquakes were M 2.5 or less.
(GVP monthly reports)
Latest satellite images
