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Masaya volcano 25 km SE from Managua is one of Nicaragua's most active and usual volcanoes.
In contrast to most other volcanoes in subduction zones, it has been erupting mainly fluid basaltic lava. At the time of the Spanish Conquistadors, it contained an active lava lake and it is reported that there were attempts to extract the volcano's molten "gold."
Masaya is a complex consisting of a 6×11.5 km large caldera with steep, up to 300 m high walls, and a group of young cones at the NW end including Nindirí and Masaya volcano proper. There are multiple summit craters including the currently active Santiago crater, the site of the current activity. caldeira 635 m / 2,083 ft Nicaragua, 11.98°N / -86.16°W Condition actuelle: en éruption (4 sur 5) Masaya webcams / données en temps réel | ReportsMasaya livres
Eruptions du volcan Masaya:2008, 2006, 2005, 2004 (?), 2003, 2001, 1999-2000, 1998, 1997, 1996, 1993-94, 1989, 1987, 1965-85, 1948, 1946-47, 1925, 1919-24, 1918, 1913, 1906, 1904, 1902-03, 1858-59, 1858 (?), 1856-57, 1853, 1852, 1772, 1670, 1613 (?), 1586, 1570, 1551, 1524-44
Tephrochronology and radiocarbon-dated: 150 AD, 170 BC ± 100 years, 4050 BC Style éruptif tipique:effusive, sometimes lava lakes, strombolian activity Derniers séismes prochesDerniers images satellite  Masaya volcano news & activity updates
Masaya volcano (Nicaragua): new signs of unrest (?)lundi déc. 14, 2015 10:26 | AUTEUR : T  Crater glow at Masaya volcano this morning (INETER crater webcam) According to local press articles referring to information from INETER, the volcano's activity is on the rise, with "lava being close to the surface".
The main crater of the volcano appears covered with debris from rockfalls from the crater walls, but visible incandescence, strong degassing sounds and small flames (from combusting gasses) jetting from between cracks on the floor, suggest that lava might be not far underneath and could again lead to the formation of a new lava lake, last observed in 1999.
On the other hand, seismic activity has been at low levels and not shown significant variations recently, not suggesting that significant movements of magma towards the surface have taken place.
Also, the incandescence of the vent at the main crater has been there for a number of years already. ---
Source:
Actualités précédentesvendredi, mai 17, 2013 Seismic activity has remained at normal, generally low levels during the past weeks. Occasionally, phases of weak increased tremor are visible. [details]
mardi, avril 23, 2013 Seismic activity has generally remained low and near normal levels at the volcano over the past weeks. [details] lundi, avril 15, 2013
Seismic activity is unstable, with a phase of weak tremor (and a regional earthquake) visible on this morning's seismogram. [details]dimanche, avril 14, 2013 The volcano experienced what appears to be a seismic swarm and a phase of increased tremor during the night, but has calmed down again by now. [details]Plus sur VolcanoDiscovery: volcano-webcams.com: Watch volcanoes live: our free interactive webcam and online data viewer tool  Active volcanoes in China: Did you know that there are at least 15 active volcanoes in China? The last eruption was from the Kunlun volcano in 1951.  Latest quakes at Katla volcano: One of Iceland's most active and dangerous volcanoes is showing signs of unrest and statistically due for a new eruption. Earthquakes could give a clue. |
