Mud Eruption in Phu Yen Attributed to Tectonic Fault Activity

On April 8, 2025, a

occurred in Xuan Son Nam commune, Dong Xuan district, Phu Yen province. A local resident reported hearing a small on the farmland of 72-year-old Nguyen Van Loi. Upon inspection, multiple were observed, from which light yellow mud began to flow slowly. This mud, with a normal temperature of about 29°C and no unpleasant , emerged at a rate of approximately 5 cubic meters per day.​

The Central Water Resources Planning and Investigation

conducted a three-day survey and concluded that the eruption resulted from along in the area. These faults, oriented northwest-southeast and north-south, are believed to have caused the ground to , allowing mud to surface. The mud contains , likely from beneath Quaternary .​

Notably, a similar mud eruption occurred at the same location 46 years ago, lasting ten days before ceasing. Authorities have

the area to ensure public safety. Further analysis is underway to determine the mud's and potential uses.