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Peuet Sague

Complex in Indonesia

Last Eruption: 2000

Key Facts

Elevation

2,785 m (9,137 ft)

Type

Complex

Location

4.903°, 96.289°

Region

Sunda Volcanic Arc

Rock Type

Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone

Location

Loading map...

Overview

Peuet Sague is a large volcanic complex in NW Sumatra. The volcano, whose name means "square," contains four summit peaks, with the youngest lava dome being located to the N or NW. This extremely isolated volcano lies several days journey on foot from the nearest village and is infrequently visited.

The first recorded historical eruption took place from 1918-21, when explosive activity and pyroclastic flows accompanied summit lava-dome growth. The active crater is located NE of the Gunung Tutung lava dome and has typically produced small-to-moderate explosive eruptions.

Volcanic Hazards & Risk Assessment

Primary Hazards

    Risk Level

    Population at RiskModerate
    Infrastructure RiskHigh
    Aviation RiskSignificant

    Geological Composition & Structure

    Rock Types

    Primary
    Andesite / Basaltic Andesite
    Silica Content
    Intermediate (57-63% SiO₂)

    Tectonic Setting

    Subduction zone
    Formed by oceanic plate subduction, typically producing explosive eruptions due to water-rich magmas.

    Age & Formation

    Epoch
    Holocene
    Evidence
    Eruption Observed

    Eruption Statistics & Analysis

    MetricValueGlobal RankingSignificance
    Total Recorded EruptionsUnknownLowModerately active volcano
    Maximum VEIVEI UnknownMinorLocal impact potential
    Recent Activity26 years agoRecentRecently active

    Monitoring & Alert Status

    Monitoring Networks

    Global Volcanism Program
    International eruption database

    Current Status

    Watch
    Dormant but monitored. Capable of renewed activity.

    Nearby Volcanoes in Sunda-Banda Volcanic Regions

    Regional Volcanic Activity
    The Sunda-Banda Volcanic Regions contains multiple active volcanic systems. Cross-regional magma interactions and tectonic stresses can influence eruption patterns across the entire arc. Monitor regional seismic activity and volcanic alerts.

    Quick Info

    • Smithsonian ID: 261030
    • Evidence: Eruption Observed
    • Epoch: Holocene

    About the Photo

    The summit crater of Peuet Sague is part of a large volcanic complex in NW Sumatra. The first recorded historical eruption took place during 1918-21, when explosive activity and pyroclastic flows accompanied summit lava-dome growth. The historically-active crater has typically produced small-to-moderate explosive eruptions.

    Copyrighted photo by Michael Thirnbeck, 1997.

    Basic Information

    This page shows basic data from the Smithsonian Global Volcanism Program. For more detailed information, visit the official Smithsonian page.