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Rincón de la Vieja is the largest volcano in NW Costa Rica and one of its most active ones.
Complex volcano 1916 m (6,286 ft)
Costa Rica, 10.83°N / -85.32°W
Aktueller Status: unruhig (2 von 5)
Rincón de la Vieja Webcams / aktuelle Daten | BerichteRincón de la Vieja Vulkan-B cher | Tours
Ausbrüche des Rincón de la Vieja:
1529(?), 1765, 1844, 1849, 1851(?), 1853-54, 1860, 1861-63, 1902(?), 1912, 1917(?), 1922, 1966-67, 1969, 1969, 1970, 1983, 1984, 1985-86, 1987, 1991-92, 1995, 1998 (Feb.-Sep.)
Typische Aktivität:Explosive.
Letzte Erdbeben in der Nähe
Letzte Satellitenbilder  Sentinel hub | Landsat 8
Rincón de la Vieja volcano, Costa Rica: activity updates
Wed, 17 Oct 2018, 11:30
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...mehrFVXX23 at 11:18 UTC, 17/10/18 from KNES [ less] [ alles lesen]
Wed, 15 Aug 2018, 07:30
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...mehrFVXX20 at 07:16 UTC, 15/08/18 from KNES [ less] [ alles lesen]
Wed, 10 Jan 2018, 01:30
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...mehrFVXX24 at 01:21 UTC, 10/01/18 from KNES [ less] [ alles lesen]
Fri, 23 Jun 2017, 17:14
OVSICORI-UNA reported that on 15 June a diffuse plume of mainly water vapor rose 50 m above Rincón de la Vieja's crater rim. A small hydrothermal explosion from the crater with the highly acidic lake was detected around noon on 18 June. ...mehrIn a report posted the next day OVSICORI-UNA noted that seismicity was characterized by low-frequency events, volcano-tectonic events, and tremor with intensifying amplitude; the seismic patterns were similar to those that preceded the phreatomagmatic events on 23 May and 11 June, though the recent seismicity was not as energetic. ( Source: Smithsonian / USGS Weekly Volcanic Activity Report 14-20 June 2017) [ less] [ alles lesen]
Wed, 24 May 2017, 12:05
A moderately large phreatic eruption occurred from the crater lake at 10:20 local time on 23 May 2017, producing a plume of steam and ash that rose 500-1000 m as well as a lahar that descended the northern flank.
Tue, 3 May 2016, 12:05
OVSICORI-UNA reported that a moderate hydrothermal explosion occurred at 14:37 local time on 1 May in the volcano's crater lake. The seismic network recorded the explosion for 11 minutes.
Sun, 3 Apr 2016, 12:05
A smaoo eruption, probably phreatic, occurred on 30 March, ejecting a small ash plume.
Sat, 12 Mar 2016, 09:40
Last Wednesday's eruption at Rincón de la Vieja volcano (OVSICORI-UNA) The volcano had a new explosion from its crater lake last Wednesday 8 March. The eruption threw deposits of mud and ash onto the northern side of the crater to up to 120 m distance from the rim and generated a small plume of ash that caused light ash fall in nearby villages in up to 6 km distance to the north. ...mehrThe activity at the volcano had started to increase already in 2015. Volcanologists have found evidence of several similar explosions that occurred in the past months, but the most recent one on Wednesday seems to have been significantly larger (although still small in itself). The most interesting news, however, comes from the analysis of the ejected ash. OVSICORI-UNA staff found that besides fragmented older rocks and sulfur, about 3-10 % of the ejected ash particles are glassy shards from juvenile (i.e. new) magma. 
The new ash deposit on the northern crater flank (OVSICORI-UNA) 
Close-up of the erupted ash: b) and c) show glassy lava from fresh magma (OVSICORI-UNA) [ less] [ alles lesen]
Sun, 21 Sep 2014, 16:39
Aerial image of the crater lake of Rincon de la Vieja volcano (image: OVSICORI-UNA) The volcano increased its activity. Since 17 Sep, phreatic explosions have regularly occurred from the main crater which contains an acid lake. Although none was observed directly, at least 6 explosions could be identified by seismic signals. An aerial survey yesterday showed no fresh deposits, which suggests that the eruptions were rather small and did not eject material beyond the lake. ...mehrPark rangers have also observed that the volcano is currently having some increased activity: strong bubbling at the lake and floating sulfur rafts on the surface. The water temperature has increased significantly by 15 deg C., compared to measurements made in 2013. The main hazard from the volcano at present would be hot, acid mud flows (lahars) if larger explosions cause the lake to drain or eject larger quantities of water. Such lahars could affect all sides of the volcano, but the areas to the NE around the Azul and Pénjamo river beds would be most at risk. During previous eruptions such in 1995, they had been affected by lahars already. 
Hazard map (Costa Rica Civil Defense) [ less] [ alles lesen]
Wed, 6 Mar 2013, 12:05
OVSICORI-UNA received reports at 05:30 on 26 February of pulsing white plumes rising from Rincon de la Vieja's active crater about every four minutes. ...mehrThe seismic records showed no signals associated with a phreatic eruption or sudden gas output. Cloud cover prevented views of the active crater during an overflight later that day, however clear views of the N and S flanks and areas SW showed no changes. [ less] Show more news
Sat, 6 Oct 2012, 07:56
Thermal image fumarolic field (RSN) The volcano has a very active hot lake whose degassing activity and temperature (48° C) increased after the magnitude 7.6 earthquake on 5 Sep. It has milky gray color due to mixing of sediments. ...mehrOn September 20 RSN staff made a visit to the active crater of Rincon de la Vieja Volcano, during which they collected a sample of lake water for subsequent chemical analysis and captured thermal images and videos, both of the surface of the lake and fumaroles, and compared them with images taken in April of 2012. This revealed that there has been an increase in the temperature of the lake, while the fumarolic field remained the same. 
Acid Laguna Rincón de la Vieja Volcano. On the right where there are thermal convective cells (upwelling), mainly in the south and east of the lake (RSN) 
Active crater with strong degassing (RSN) [ less] [ alles lesen]
Thu, 12 Apr 2012, 10:05
Over the past weeks, the National Park of Rincón de la Vieja has been observing an increase in volcanic activity, and a small phreatic eruption occurred from the main crater on 11 April.
Thu, 1 Mar 2012, 16:29
Seismic recording of a phreatic explosion at 00:16 local time on 19 February 2012 Neue Phreatische Explosionen wurden am Rincón De La Vieja Vulkan im nördlichen Costa Rica aufgenommen. ...mehrAm 23. Februar wachte Einwohner in Guachipelin (11 km SW) auf um Explosion zwischen 0400 und 0430 Ortszeit zu hören. Seismische Aufzeichnungen zeigte Signale typisch für Explosionen zur gleichen Zeit, obwohl andere Bewohner in anderen Bereichen nicht, jede Eruption hören. Ähnliche seismische Signale gefunden auf 19 Feb 00:16 und 20 Feb 00:46 lokaler Zeit, was darauf hindeutet, dass auch kleinere Explosionen dann aufgetreten ist. [ less] [ alles lesen]
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