- Info & Contacts
The Global Volcanism Program has no activity reports for Hanish.
The Global Volcanism Program has no Weekly Reports available for Hanish.
The Global Volcanism Program has no Bulletin Reports available for Hanish.
The Hanish Islands are formed from a series of volcanic vents along a NE-SW trend, and include the Holocene Great Hanish, Little Hanish, and many other small islands and submarine shoals. The Zukur-Hanish island group, in contrast to other Red Sea islands such as Jebel at Tair or the Zubair Islands, lies in shallow waters south of the Red Sea median trough. Spatter cones, cinder cones, and ash cones line the crest of the 20-km-long Great Hanish island. Short lava flows reach the coast on both sides of the island. As with the Zukur group to the north, initial eruptions were phreatic. Subsequently basaltic cinder cones were formed, and spatter cones produced fluid lava flows.
The Global Volcanism Program is not aware of any Holocene eruptions from Hanish. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Hanish page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
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.
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Great Hanish Island||Shield volcano||422 m||13° 43' 0" N||42° 44' 0" E|
|Little Hanish Island||Cone||184 m|
|North Round Island||Cone|
|The 20-km-long island of Hanish is seen in this composite NASA Landsat image (with north to the top). Alignment of vents along a prominent NE-SW trend gives the island its elongated shape. Short lava flows reached the coast on both sides of the island, including a very youthful flow prominent on the NW coast. Initial phreatic eruptions were followed by the formation of basaltic cinder and spatter cones that produced fluid lava flows. Suyul Hanish Island lies at the bottom center, and other offshore island lie along the regional NE-SW trend.
NASA Landsat7 image (worldwind.arc.nasa.gov)
The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.
Gass I G, Mallick D I J, Cox K G, 1973. Volcanic islands of the Red Sea. J Geol Soc London, 129: 275-310.