Al Harrah, Saudi Arabia
Al Harrah is a large basaltic volcanic field in northwestern Saudi Arabia near the Jordanian border. It covers an area of 15,200 km2. The volcanic field forms the southern third of the massive Harrat al-Shamah volcanic field, which extends from Syria through Jordan into northern Saudi Arabia. It is in the Tabuk Region of northwest Saudi Arabia. It is one of a series of Quaternary volcanic fields paralleling the Red Sea coast.
The Saudi Arabian portion of the Harrat Ash Shamah volcanic field extends across a -long, roughly -wide NW-SE-trending area on the NE flanks of the Sirhan Valley and reaches its high point at Jabal Al-Amud.
Activity began during the Miocene; a younger eruptive stage, at the SE end of the volcanic field, occurred during the late-Pleistocene and Holocene. It is known to have erupted in historic times. Vegetation is characteristically open acacia shrubland with patches of juniper at higher altitudes
