Harra of Arhab

No photo available for this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 15.63°N
  • 44.08°E

  • 3100 m
    10168 ft

  • 231090
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Harra of Arhab.

The Global Volcanism Program has no Weekly Reports available for Harra of Arhab.

The Global Volcanism Program has no Bulletin Reports available for Harra of Arhab.

Basic Data

Volcano Number

Last Known Eruption



500 CE

3100 m / 10168 ft


Volcano Types

Volcanic field

Rock Types

Trachybasalt / Tephrite Basanite
Basalt / Picro-Basalt
Trachyandesite / Basaltic trachy-andesite

Tectonic Setting

Continental crust (> 25 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

The Quaternary Harra of Arhab lava field in Yemen, north of the capital city of Sana'a, consists of a 1500 sq km basaltic plateau capped by a few small stratovolcanoes and about 60 scoria cones, two of which have erupted in historical time. Cones in the volcanic field (also known as the Sana'a or the Sana'a-Amran volcanic field) are commonly aligned along a north-NW trend above a 100-250-m-thick volcanic plateau. Pliocene-to-Holocene volcanic rocks have a dominantly basaltic-to-hawaiitic composition and overlie the northern end of an area of extensive Oligocene-Miocene basaltic-to-rhyolitic rocks that extends to the SW tip of the Arabian Peninsula. The latest eruption at Harra of Arhab took place in pre-Islamic time between about 400 and 600 CE and produced a lava flow that traveled 9 km.


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Baker J A, Menzies M A, Thirlwall M F, Macpherson C G, 1997. Petrogenesis of Quaternary intraplate volcanism, Sana'a, Yemen: implications for plume-lithosphere interaction and polybaric melt hybridization. J Petr, 38: 1359-1390.

Davison I, Al-Kadasi M, Al-Khirbash S, Al-Subbary A K, Baker J, Blakey S, Bosence D, Dart C, Heaton R, McClay K, Menzies M, Nichols G, Owen L, Yelland A, 1994. Geological evolution of the southeastern Red Sea Rift margin, Republic of Yemen. Geol Soc Amer Bull, 106: 1474-1493.

Neumann van Padang M, 1963. Arabia and the Indian Ocean. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 16: 1-64.

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0500 ± 100 years Unknown Confirmed 0 Historical Observations South flank of Kaulet Hattab
0200 (after) Unknown Confirmed 2 Anthropology East flank of Jabal Zebib

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Sana'a Volcanic FIeld | Sana'a-Amran Volcanic Field


Feature Name Feature Type Elevation Latitude Longitude
Hamudi, Jabal al Stratovolcano
Kaulet Hattab
    Hattab, Jabal
Tuff cone 2900 m 15° 38' 0" N 44° 5' 0" E
Zebib, Jabal Tuff cone 2950 m 15° 36' 0" N 44° 7' 0" E
Zin, Jabal Stratovolcano


Feature Name Feature Type Elevation Latitude Longitude
Beni Maimun Crater
Beni Zubeir Crater
Chubbe, Jabal Crater
Dagan, Jabal Crater
Dhin, Jabal Crater 3100 m
Djerban Crater
Kaulet el-Hauri Crater
Medam, Jabal Crater
Qol, Jabal Crater

The Global Volcanism Program has no photographs available for Harra of Arhab.

Smithsonian Sample Collections Database

There are no samples for Harra of Arhab in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites

Large Eruptions of Harra of Arhab Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.