Harra of Arhab
| Harra of Arhab | |
|---|---|
| Highest point | |
| Elevation | 3,100 m (10,200 ft) |
| Geography | |
| Location |
 Yemen |
| Geology | |
| Mountain type | Volcanic field |
| Last eruption | 500 BCE ± 100 years |
The mainly Quaternary Volcanic field of Harra of Arhab is the northernmost historically active volcanic field in Yemen. It has erupted once historically, in Pre-Islamic times.
Morphology
The field is located on a 1500 km2 volcanic plateau. The plateau contains a few small (older) stratovolcanoes and 60 volcanic cones. The field is arranged on a N-NW line. Younger Basaltic rocks from the Pliocene-Holocene (northern end of the field), overlie Rhyolitic rocks from the Oligocene-Miocene, which covers most of the field. The volcano is located 30 km north of Yemens capital city, Sana'a.
Eruptions
An eruption in 200 AD (a VEI 2) took place on the flank of an older cinder cone (Jabal Zebib).
500 AD ± 100 years Eruption
A historical eruption from the volcano in around 500 AD took place on the south flank of Kaulet Hattab cinder cone. It produced a lava flow that travelled for 9 km, which caused some damage.
References
Coordinates: 15°35′51″N 44°02′46″E / 15.59750°N 44.04611°E