Type of volcano: Mudvolcano
Location: East Java, Indonesia
The Sidoarjo mud flow, also informally abbreviated as Lusi, a contraction of Lumpur Sidoarjo (lumpur is the Indonesian word for mud), is a mud volcano in the subdistrict of Porong, Sidoarjo in East Java, Indonesia that has been in eruption since May 2006. This biggest mud volcano in the world was created by the blowout of a natural gas well drilled by PT Lapindo Brantas, although company officials contend that it was caused by a distant earthquake. At its peak Lusi was spewing up to 180,000 m³ of mud per day, but as of early 2011 it still averages approximately 30,000 m³ (1 million cubic feet) of mud per day. It is expected that the flow will continue for the next 25 to 30 years.