The mainly Quaternary Harra of Arhab is the northernmost, historically active volcanic field (Arabic: حَرَّة, romanized: Ḥarrah) in Yemen.

The volcano is located 30 km (19 miles) north of Yemen's capital city, Sana'a.

[2][3][4] A historical eruption in 200 AD (a VEI 2) took place on the flank of an older cinder cone (Jabal Zebib).

Another 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 (5.6 miles), and caused some damage.