Rincón de la Vieja volcano
Complex volcano 1916 m (6,286 ft)
Costa Rica, 10.83°N / -85.32°W
Current status: normal or dormant (1 out of 5)
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Costa Rica, 10.83°N / -85.32°W
Current status: normal or dormant (1 out of 5)
Rincón de la Vieja webcams / live data | Reports
Rincón de la Vieja volcano books | Tours
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Last update: 15 Aug 2018
Typical eruption style:
Rincón de la Vieja volcano eruptions: 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.), 2011-2012, 2014, 2015-ongoing
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Typical eruption style:
Explosive.
Rincón de la Vieja volcano eruptions: 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.), 2011-2012, 2014, 2015-ongoing
| Time | Mag. / Depth | Distance | Location |
| Sat, 6 Oct | |||
| Sat, 6 Oct 00:35 UTC | M 4.1 / 3 km | 9 km | 5 km al Oeste de Aguas Claras, Upala. |
| Mon, 1 Oct | |||
| Mon, 1 Oct 04:56 UTC | M 2.8 / 148 km | 7 km | 4 km al Este de Bijagua, Upala. |
| Tue, 18 Sep | |||
| Tue, 18 Sep 10:30 UTC | M 3.7 / 145 km | 14 km | 6 km al Norte de Aguas Claras, Upala. |
| Fri, 31 Aug | |||
| Fri, 31 Aug 16:19 UTC | M 2.9 / 6 km | 8 km | 2 km al Oeste de Bijagua, Upala. |
| Wed, 29 Aug | |||
| Wed, 29 Aug 15:51 UTC | M 3.8 / 6 km | 42 km | 9 km al Este de Filadelfia, Guanacaste. |
Background:
It is a remote volcanic complex in the Guanacaste Range, consisting of an elongated, arcuate NW-SE-trending ridge that was constructed within the 15-km-wide, about 9,000 years-old Guachipelín caldera, whose rim is exposed on the south side.Rincón de la Vieja, sometimes known as the "Colossus of Guanacaste," has an estimated volume of 130 cu km and contains at least 9 major eruptive centers.
Activity has migrated to the SE, where the youngest-looking craters are located. The twin cone of 1916-m-high Santa María volcano, the highest peak of the Rincón complex, is located at the eastern end of a smaller, 5-km-wide caldera and has a 500-m-wide crater.
A plinian eruption producing the 0.25 cu km Río Blanca tephra about 3500 years ago was the last major magmatic eruption from the volcano. All subsequent eruptions, including numerous historical eruptions possibly dating back to the 16th century, have been from the prominent crater containing a 500-m-wide acid lake (known as the Active Crater) located ENE of Von Seebach crater.
Source: GVP, Smithsonian Institution
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