Residents look in the remains of properties destroyed by the Sidoarjo mud flow on May 28, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. Australian experts have this month cut the predicted life expectancy of the Lusi mud volcano, which has been continually spewing mud since May 29, 2006, with new predictions lowered to 28 years, compared to earlier suggestions as high as 87 years. The eruption is suspected to be triggered by the drilling activities of Indonesian oil and gas company Lapindo Brantas, though they refute the claims, instead blaming a small quake 2 days earlier. The disaster has so far killed 14 people and displaced 40,000 others, with parent company Bakrie having paid out over USD 700 million in land acquisitions which it denies are compensation payments. They expect to pay out a further USD 120 million by the end of 2012. (Photo by Ulet Ifansasti/Getty Images)

An officer of Indonesian agency Sidoarjo Mud Prevention Agency (BPLS), inspects the water temperature of mud near the crater of the Sidoarjo mud flow on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)

Indonesian activists covered with sludge from the mud volcano hold a protest during five year anniversary of the Sidoarjo mud eruption on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)

Indonesian activists and mudflow victims carry colourful protest posters during five year anniversary of the Sidoarjo mud eruption on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)

Mudflow victims pray during the 5th Anniversary of Lusi mud volcano disaster on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)

A footprint in the mud in a house destroyed by the Sidoarjo mud flow during the 5th Anniversary of Lusi mud volcano disaster on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)

A woman walks over the Sidoarjo mud flow during the 5th Anniversary of Lusi mud volcano disaster on May 29, 2011 in the subdistrict of Porong in Sidoarjo, East Java, Indonesia. (Photo by Ulet Ifansasti/Getty Images)