Open Earth

Isarog

Isarog is a stratovolcano in Western Pacific Volcanic Regions, Philippines, rising to 1,966 m. Its most recent recorded eruption was in 3500 BCE.

About Isarog

The broad isthmus between Lagonoy Gulf and San Miguel Bay in SE Luzon is occupied by Mount Isarog. The andesitic stratovolcano is truncated by a 2.5-km-wide crater that is breached to the east along a narrow valley drained by the Quinarag River. A major debris avalanche deposit extends NW to the coast and into San Miguel Bay. Pyroclastic flows originating from lava dome collapses have occurred during the Holocene, one of which has a calibrated radiocarbon date of about 5,500 years BP. The Maalsom vent displays gas seepages, warm springs, and steaming vents.

Eruption reports

Reports from GDACS and NASA EONET linked to this volcano.

No eruption reports in our records yet. New reports appear here automatically.

Earthquakes nearby, 30 days

Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.

No earthquakes recorded nearby in the last 30 days.