Haylan, Jabal

Volcanic field · Yemen · 1550m

The Jabal Haylan volcanic field comprises scoria cones and tuff rings and associated lava flows across a 75-km-long area, with a portion of the field shown in this Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 52 km across). The chain crosses a NW-SE-trending fault that with visible offset in this image. Many of the cones and rings have experienced flank collapse, rafting, or erosion, leaving amphitheater-shaped craters. Some tuff rings appear to have lava domes that have formed within the crater. · Photo: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/).

Type: Volcanic field
Country: Yemen
Region: Arabia-Central Asia Volcanic Regions / Southwest Arabia Volcanic Province
Elevation: 1550m
Coordinates: 15.400, 45.100
Last eruption: -1200
Tectonic setting: Intraplate / Continental crust (> 25 km)
Landform: Cluster
Major rock type: Basalt / Picro-Basalt

Geological summary

The Jabal Haylan area contains a 75-km-long chain of tuff cones and associated olivine basaltic lava flows in eastern Yemen. The chain crosses a NW-SE-trending fault extending between the highlands and desert lowlands to the east. One of the lava flows covers alluvial terraces that accumulated behind man-made dams from about 800-1200 BCE (Catalog of Active Volcanoes of the World).

Eruption history

Summary (VEI over time)

Click a bar to see individual eruptions

Detailed timeline

1200 BCEVEI 0Geological estimate
BCE 1200 – Ongoing
West of Sirwan

External links

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🔗 Smithsonian GVP source page

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