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Atakor Volcanic Field

Volcanic field in Algeria

Key Facts

Elevation

2,918 m (9,573 ft)

Type

Volcanic field

Location

23.330°, 5.830°

Region

West Central Sahara Volcanic Province

Rock Type

Trachybasalt / Tephrite Basanite

Tectonic Setting

Intraplate

Location

Loading map...

Overview

The massive Atakor volcanic field is the largest in the Hoggar (or Ahaggar) volcanic province of southern Algeria and covers an area of 2,150 km2. Quaternary basaltic (mostly basanitic) scoria cones and lava flows lie near older trachytic and phonolitic lava domes and volcanic necks that form some of the most dramatic scenery of northern Africa. The latest stage of activity began around 1.

95 million years and continued almost to the present. Lava flows cover Holocene lake sediments dated at about 10,000 BP and alluvial terraces in which Neolithic artifacts have been found. Pottery has been found within lava flows in the Tahifet area, and oral traditions of the Tuareg people suggest that eruptions were witnessed.

Sporadic fumaroles and persistent small-scale seismicity have been reported.

Volcanic Hazards & Risk Assessment

Primary Hazards

    Risk Level

    Population at RiskModerate
    Infrastructure RiskModerate
    Aviation RiskSignificant

    Geological Composition & Structure

    Rock Types

    Primary
    Trachybasalt / Tephrite Basanite
    Silica Content
    Varied composition

    Tectonic Setting

    Intraplate
    Continental rift or intraplate setting with varied eruptive styles.

    Age & Formation

    Epoch
    Holocene
    Evidence
    Evidence Credible

    Eruption Statistics & Analysis

    MetricValueGlobal RankingSignificance
    Total Recorded EruptionsUnknownLowModerately active volcano
    Maximum VEIVEI UnknownMinorLocal impact potential
    Recent ActivityUnknownHistoricalHistorically active

    Monitoring & Alert Status

    Monitoring Networks

    Global Volcanism Program
    International eruption database

    Current Status

    Normal
    No recent activity. Routine monitoring continues.

    Nearby Volcanoes in Northern Africa Volcanic Regions

    Regional Volcanic Activity
    The Northern Africa 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: 225005
    • Evidence: Evidence Credible
    • Epoch: Holocene

    About the Photo

    The bluish-gray area at the center of this NASA Landsat image and areas at the upper right are part of the massive Atakor volcanic field. These volcanics cover an area of 2,150 km2 and includes lava domes and abundant basaltic scoria cones and lava flows. Historical pottery has been found within lava flows in the Tahifet area, and oral traditions of the Tuareg people also suggest that eruptions were witnessed. The prominent lineament at the far left is the Inter-terrane Pan-African shear zone.

    NASA Landsat 7 image (worldwind.arc.nasa.gov)

    Basic Information

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