Tenorio volcano

Stratovolcanoes 1916 m / 6,286 ft
Costa Rica, 10.67°N / -85.02°W
Current status: normal or dormant (1 out of 5)

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Typical eruption style: unspecified
Tenorio volcano eruptions: unknown, no recent eruptions

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Sat, 19 Jun 2021 (GMT) (1 earthquake)
2021-06-18 20:04:19 (19 Jun 2021 02:04:19 GMT)
3.0

29 km		45 km (28 mi)
16 km south of Canas, Cañas, Provincia de Guanacaste, Costa Rica
Thu, 17 Jun 2021 (GMT) (1 earthquake)
17 de junio del 2021 8:07 am (17 Jun 2021 14:07:00 GMT)
2.9

6 km		32 km (20 mi)
San Carlos, Provincia de Alajuela, 36 km east of Canas, Costa Rica
Wed, 16 Jun 2021 (GMT) (1 earthquake)
15 de junio del 2021 11:18 pm (16 Jun 2021 05:18:00 GMT)
2.9

4 km		20 km (12 mi)
Bagaces, 27 km east of Liberia, Provincia de Guanacaste, Costa Rica
Tue, 15 Jun 2021 (GMT) (1 earthquake)
15 de junio del 2021 4:52 am (15 Jun 2021 10:52:00 GMT)
3.1

5 km		20 km (12 mi)
Bagaces, 26 km east of Liberia, Provincia de Guanacaste, Costa Rica
Mon, 14 Jun 2021 (GMT) (1 earthquake)
2021-06-14 09:30:49 (14 Jun 2021 15:30:49 GMT)
2.8

95 km		50 km (31 mi)
27 km west of Ciudad Quesada, San Carlos, Provincia de Alajuela, Costa Rica

Background

The 225 sq km dominantly andesitic Tenorio volcanic massif anchors the SE end of the Guanacaste Range and consists of a cluster of densely forested NNW-SSE-trending volcanic cones. Overlapping lava flows from the principal peak, Tenorio, blanket the NW-to-SW flanks and descend the NE flank. The NW-most of three craters of the central cone is sparsely vegetated and appears to be the most recently active. Volcán Montezuma to the north has twin craters, the northern of which fed a lava flow to the NE. Additional pyroclastic cones are found to the NE and SW of the central complex, and the Bijagua lava domes were constructed on the northern flank. A major debris avalanche covered about 100 sq km below the southern flank of the volcano. A legend exists of an eruption in 1816, but the volcano was densely forested at the time of an 1864 visit by Seebach and is not considered to have erupted in historical time. Fumarolic activity is present on the NE flank.
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Smithsonian / GVP volcano information


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