Isarog volcano

stratovolcano 1966 m / 6,450 ft
Luzon Island, Philippines, 13.66°N / 123.38°E
Current status: normal or dormant (1 out of 5)

Isarog volcano is an andesitic stratovolcano of Naga city, in SE Luzon, Philippines. It is part of the Bicol volcanic chain, and could still be active although no historic eruptions are known. The volcano has active fumaroles, steam vents and hot springs.

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Typical eruption style: explosive
Isarog volcano eruptions: unknown

TimeMag. / DepthDistance/Location
Monday, November 22, 2021 06:28 GMT (1 earthquake)
Nov 22, 2021 2:28 pm (GMT +8) (Nov 22, 2021 06:28 GMT)
2.9

1 km
48 km (30 mi)
26 km west of Naga City, Province of Camarines Sur, Bicol, Philippines

Background

Isarog volcano forms the broad isthmus between Lagonoy Gulf and San Miguel Bay. The volcano is truncated by a 2.5-km-wide crater breached to the east where is drained by the narrow gorge of the Quinarag River.

1915-16 earthquakes & seismic unrest
On 8 November, 1915, frequent earthquakes were felt on and around Isarog volcano, with some occasional noises. Landslides occurred on the slopes of Isarog volcano. The seismic swarm repeated itself 2 or 3 times at long
intervals until 10 January, 1916. The volcano was thickly wooded, even inside of the crater, and nobody observed any fumaroles.
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Source: "Awakening of two old volcanoes in Luzon, Philippine Idands." Bulletin of the Seismological Society of America; December 1916; v. 6; no. 4; p. 236-240

See also: Sentinel hub | Landsat 8 | NASA FIRMS
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