Rincón de la Vieja volcano, Costa Rica: news & activity updates
Updated: May 27, 2022 20:13 GMT - Refresh
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Tue, 10 Nov 2020, 08:52
OVSICORI-UNA recorded a small eruption at 15:23 local time yesterday. Read allMon, 9 Nov 2020, 22:30
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Wed, 4 Nov 2020, 06:00
OVSICORI-UNA reported that small-to-moderate hydrothermal eruptions at Rincón de la Vieja had greater amplitudes but were more sporadic during 2-9 November. An eruptive event at 0835 on 3 November produced a plume that rose 800 m above the crater rim. Read allWed, 7 Oct 2020, 07:23
Explosive eruption of the volcano continues characterized by phreatic-type (or hydrothermal) explosions at regular intervals of 1 to 2 per day. Read allWed, 30 Sep 2020, 06:00
OVSICORI-UNA reported that small, frequent (1-2 events per day) eruptions at Rincón de la Vieja continued to be recorded, though sometimes not visually confirmed, during 30 September-6 October. Eruption plumes often rose 500-800 m above the crater rim but on 1 and 6 October they rose 1 km. Read allFri, 18 Sep 2020, 06:35

Phreatic explosion from Rincon de la Vieja volcano yesterday morning at 06:32 local time (image: OVSICORI)
Wed, 16 Sep 2020, 06:00
OVSICORI-UNA reported that small, frequent eruptions at Rincón de la Vieja continued to be recorded, though sometimes not visually confirmed, during 16-22 September. A larger event, at 1053 on 22 September, ejected material out of the crater and into the drainages on the N flank. Read allWed, 2 Sep 2020, 06:00
OVSICORI-UNA reported that on 3 September geologists observed Rincón de la Vieja from the summit and noted that the acid lake in the main crater had a low water level, was actively convecting, and exhibited strong gas emissions. The temperature of the lake was 60 degrees Celsius. Vigorous fumaroles on the inner W wall of the crater were 120 degrees Celsius. Read allWed, 26 Aug 2020, 06:00
OVSICORI-UNA reported continuing phreatic activity at Rincón de la Vieja during 19 August-1 September. Phreatic explosions were recorded almost daily, sometimes multiple times a day, though weather conditions often prevented visual confirmation of emissions. Plumes were seen rising 0.5-1 km above the crater rim on 19, 24, 28, and 31 August. Read allTue, 25 Aug 2020, 08:22
Another eruptive event of the volcano occurred since the last update. Read allShow more
Fri, 21 Aug 2020, 09:08
OVSICORI-UNA reported that small explosion occurred at 06:24 local time yesterday. Eruption generated a gas-steam plume. Read allWed, 5 Aug 2020, 06:00
OVSICORI-UNA reported that phreatic activity at Rincón de la Vieja had significantly decreased compared to activity during January-May. Events were recorded at 0546 on 5 August and at 1000 on 8 August, but not visually confirmed due to weather conditions. A phreatic explosion at 0035 on 6 August generated a plume that rose 500 m above the crater rim. Read allWed, 22 Jul 2020, 06:00
OVSICORI-UNA reported that periodic phreatic explosions at Rincón de la Vieja were recorded by the seismic network and webcams during 22-25 July. Sometimes the events were not visually confirmed due to weather conditions. Small eruptive events were recorded during 0700-0900 on 22 July, and during the first part of the day on 23 July; a minor steam plume was visible at 0536 on 23 July. Read allWed, 17 Jun 2020, 06:00
OVSICORI-UNA reported that periodic phreatic explosions at Rincón de la Vieja continued to be recorded by the seismic network and webcams during 16-23 June. Several small eruptive events were recorded during 16-17 June; the largest event occurred at 1635 on 17 June and produced a plume that rose 1 km above the crater rim. Eruptive events were detected at 1442 on 19 June and 1046 on 23 June, though inclement weather conditions prevented visual confirmation. Read allTue, 2 Jun 2020, 08:21
OVSICORI-UNA reported that moderate phreatic explosion occurred at 17:01 local time yesterday. An ash plume rose 4,921 ft-6,561 ft (1,500 m-2,000 m) above the summit.
Thu, 28 May 2020, 07:28
OVSICORI-UNA recorded a few phreatic or hydrothermal explosions this week. Read allWed, 27 May 2020, 06:00
OVSICORI-UNA reported that periodic phreatic explosions at Rincón de la Vieja continued to be recorded by the seismic network and webcams during 26-29 May and 1-2 June. Some of the events were not visually confirmed by webcams because of weather conditions or darkness. On 26 May a minor amount of ash fell in areas to the NW including in Los Angeles of Quebrada Grande, and Liberia. Read allWed, 20 May 2020, 06:00
OVSICORI-UNA reported that periodic phreatic explosions at Rincón de la Vieja continued to be recorded by the seismic network and webcams during 20-26 May; most plumes rose no higher than 500 m above the crater rim. Some of the events were not visually confirmed by webcams because of weather conditions or darkness. A small ash eruption at 0537 on 21 May produced a plume that rose 1 km above the crater rim and contained less water vapor than plumes from eruptive events in the past weeks. Read allWed, 13 May 2020, 06:00
OVSICORI-UNA reported that periodic phreatic explosions at Rincón de la Vieja continued to be recorded by the seismic network and webcams during 13-19 May. Some of the events were not visually confirmed by webcams because of weather conditions or darkness. Two events, at 0524 and 0704 on 14 May produced steam plumes that rose 500 m above the crater rim. Read allFri, 8 May 2020, 10:30
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Wed, 6 May 2020, 08:53
Volcanic Ash Advisory Center (VAAC) Washington recorded on 5 May at 19:17 local time an explosion that generated an ash plume, which reached approx. 7,000 ft (2,100 m) altitude and drifted W. Read allWed, 6 May 2020, 06:00
OVSICORI-UNA reported periodic phreatic explosions at Rincón de la Vieja during 6-12 May. Phreatic explosions were recorded at 1624 on 6 May and 0343 on 8 May, though inclement weather conditions hindered visual confirmation. Two small emissions were noted at 1850 on 8 May and at 0020 on 9 May. Read allTue, 5 May 2020, 21:45