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Cuernos de Negros volcano

complex volcano 1862 m / 6,109 ft
Central Philippines, Philippines, 9.25°N / 123.17°E
Current status: dormant (1 out of 5) | Reports
Cuernos de Negros volcano books
Typical eruption style: explosive
Cuernos de Negros volcano eruptions: less than 14,000 years ago
TimeMag. / DepthDistanceLocation
Tue, 5 Jun
Tue, 5 Jun 10:49 UTCM 3.8 / 2 km7 km013 km N 77
Tue, 5 Jun 09:19 UTCM 2.3 / 19 km16 km001 km S 34
Fri, 25 May
Fri, 25 May 19:19 UTCM 2.6 / 9 km22 km023 km N 05
Cuernos de Negros (also known as Magaso) is a large stratovolcano complex located in SE Negros Island, Philippines, near the city of Dumaguete. It is unknown when it has erupted after since the last radiocarbon-dated activity about 14,000 years ago. At present, it still has active fumaroles at the highest crater of Magaso, sulphuric springs at the ESE flanks and hot springs on the NE flank.
An increase in fumarolic activity was observed after (and probably triggered by) a major tectonic earthquake in 1902.
The Palinpinon geothermal field is located south of the Okoy River on the north side of the volcano.

Background:

The andesitic to dacitic to Cuernos de Negros volcano forms most of the SE tip of Negros Island. The eastern side of the complex consists of 2 overlapping stratovolcanoes and a lava dome. There are 2 crater lakes up to 1.5 km in diameter. The lower western part of the complex contains 4 volcanic centers.
Negros Island is situated in a back-arc basin where regional extension causes volcanism.


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