# Volcanes de lodo, Buzau, Rumanía, 2016-05-29, DD 34

- By: Diego Delso
- Date: 2016-05-29
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Volcanes_de_lodo,_Buzau,_Ruman%C3%ADa,_2016-05-29,_DD_34.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/9/99/Volcanes_de_lodo%2C_Buzau%2C_Ruman%C3%ADa%2C_2016-05-29%2C_DD_34.jpg/1920px-Volcanes_de_lodo%2C_Buzau%2C_Ruman%C3%ADa%2C_2016-05-29%2C_DD_34.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Mud flow out of a Berca Mud volcano, a geological and botanical reservation located close to Berca, Buzău County, Romania. The phenomenon is caused due to gases that erupt from 3,000 metres (9,800 ft) deep towards the surface, through the underground layers of clay and water, they push up underground salty water and mud, so that they overflow through the mouths of the volcanoes, while the gas emerges as bubbles. The blur in the middle of the channel is due to a wave of mud that passed every approx. 20 seconds.