Mud volcano Otmanbozdagh

Volcano is situated within Absheron peninsula, 35km south-west off Baku. It is one of the largest mud volcanoes in Azerbaijan with elevation mark 403 m. First recorded quite strong volcano eruption occurred in February 1854, the last one in June 2004 at 18:00 that was lasted for half an hour. Eruption as usually was accompanied by underground rumble, explosion, however without inflamed gas, outburst of mud breccias up to 20-25m high. Pored out mud breccias which volumetric amount measures 52 th cu m and thickness varies in the range from 0.4-1.5m covered an area of 4.3 he. Mud breccias which shape is

almost circular with dimensions around 240-195m had covered only mud volcano crater  area. This eruption power was less strong compared to that of 1994.Outburst mud breccias did not covered the previous mud cover. Two narrow circular fractures along with several radial ones appeared over the previous cover. After 1985 Otmanbozdagh outburst and particularly after 1994 one 3 large, 3m-deep and 2 m-wide fractures extended over 400 m were recorded. Volumetric amount of 120 m-thick mud breccias measures about 1.2 B cu m.
It is worth to note that while 1854 eruption mud volcano during 3 hours outburst 20 M cu m of mud breccias which covered the area of 100 he. During last 3-4 eruptions the amount of outburst mud breccias did not exceeded 50-60 th cu m.