Matutum volcano

stratovolcano 2286 m / 7,500 ft
Mindanao, Philippines, 6.37°N / 125.07°E
Current status: normal or dormant (1 out of 5)

Matutum is a symmetrical stratovolcano located in southern Mindanao, NW of Sarangani Bay and 30 km NNW of General Santos City.
The mountain, a popular hiking destination, has a well-preserved summit cone and a 320 m wide and a vegetated 120 m deep summit crater. The crater is breached by 3 large canyons.

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Typical eruption style: explosive
Matutum volcano eruptions: 1911(?), 1290 ± 40 years, 170 BC ± 75, 400 BC ± 50

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Mon, 21 Jun 2021 (GMT) (2 earthquakes)
22 June 2021 - 12:08 AM (PST) (21 Jun 2021 16:08:00 GMT)
2.3

9 km
36 km (22 mi)
10.4 km southwest of Magsaysay, Province of Davao del Sur, Philippines
21 June 2021 - 10:07 PM (PST) (21 Jun 2021 14:07:00 GMT)
1.7

35 km
42 km (26 mi)
13 km southwest of Digos, Province of Davao del Sur, Philippines
Sat, 19 Jun 2021 (GMT) (2 earthquakes)
20 June 2021 - 03:57 AM (PST) (19 Jun 2021 19:57:00 GMT)
2.6

6 km
33 km (21 mi)
20 km southwest of Digos, Province of Davao del Sur, Philippines
19 June 2021 - 02:00 PM (PST) (19 Jun 2021 06:00:00 GMT)
2.8

12 km
27 km (17 mi)
Province of Sultan Kudarat, 30 km northeast of Koronadal City, Philippines
Fri, 18 Jun 2021 (GMT) (1 earthquake)
18 June 2021 - 11:48 PM (PST) (18 Jun 2021 15:48:00 GMT)
2.6

1 km
48 km (30 mi)
12 km west of Malita, Davao Occidental, Philippines

Background

The plains around Matatum volcano are covered by silicic pyroclastic-flow deposits, the youngest of which were radiocarbon dated at about 2000 years ago.
2 thermal areas, Akmoan and Lianan, are found on the WSW flank of the volcano.

Tectonic setting of Matutum volcano
Matutum volcano belongs to the Cotabato Arc, caused by the eastward subduction of the oceanic Celebes Sea microplate along the Cotabato trench under the southern tip of Mindanao Island, which belongs to the Philippine Mobile Belt. Mt Matutum is located 130 km from the trench. Deep-seismic studies show that the subducting slab is only 75-85 km below Mt Matutum volcano.
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Reference:
Yumul et al (2008) "Tectonic setting of a composite terrane: A review of the Philippine island arc system", Geosciences Journal, v 12 (1), pp 7-17

1911 possible eruption
"Smoke" (i.e. volcanic ash) was seen at the volcano on 7 March 1911. This may indicate a probably small phreatic eruption. (Neumann van Padang, 1953)

See also: Sentinel hub | Landsat 8
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