The Department of Mineral Resources revealed that the cause of 11 earthquakes in Khao Phang Subdistrict, Surat Thani Province, was movement along the Khlong Marui fault group. These were small earthquakes. Officials have been ordered to closely monitor the situation. So far, no damage has been reported.
On 12 February 2026, the Department of Mineral Resources reported an earthquake event in Khao Phang Subdistrict, Ban Ta Khun District, Surat Thani Province.
They specified that between 11-12 February 2026, there were 11 earthquakes ranging from magnitude 1.9 to 3.2 (data as of 14:00 GMT+7) in Khao Phang Subdistrict, Ban Ta Khun District, Surat Thani Province.
The largest earthquake occurred on 12 February 2026 at 02:07 GMT+7 with a magnitude of 3.2 at a depth of 2 kilometers. It was about 10 kilometers southeast of the Ratchaprapha Dam crest and approximately 21 kilometers southeast of Ban Ta Khun District Office.
The cause was movement along the Khlong Marui fault group, oriented northeast-southwest, exhibiting left-lateral strike-slip motion. This is classified as a minor earthquake. According to the Modified Mercalli Intensity scale, the shaking was level 2-3 (very weak), felt only by people at rest.
There were reports of tremors felt in some areas of Khao Phang Subdistrict, Ban Ta Khun District, Surat Thani Province. No damage has been reported.
The Electricity Generating Authority of Thailand (EGAT) and Ratchaprapha Dam officials confirmed that the tremors from this earthquake did not affect the stability of Ratchaprapha Dam or other dams, nor the power plants. Inspections found the dams to be stable and in normal condition. The public is assured of the safety of the dams and the stability of Thailand's power system, with close monitoring continuing.
Regarding operations, the Disaster Geology Operations Center staff have been monitoring and assessing the earthquake situation, providing advice to the Disaster Geology network and local residents, and coordinating with relevant agencies to maintain close and continuous surveillance of the earthquakes.
Information source: Facebook pageDisaster Geology Operations Center, Department of Mineral Resources