In the latest of a spate of earthquake reports for the region, principally in Indonesia and The Philippines, a report this morning from the Si Sawat district of Kanchanaburi with a tremor registering 4.9 on the Richter scale.
No casualties or damage has been recorded.
Seismologists report that the quake was two kilometres underground and was sensed in Kanchanaburi, Chai Nat, Uthai Thani, Suphan Buri and Nakhon Pathom provinces.
The epicentre was reported to be about 60 kilometres east of the Vajiralongkorn Dam and 55 kilometres from the Srinagarind Dam but that the quake has had no impact on the structures.
Si Sawat district sits on the Si Sawad fault line, running through Uthai Thani, and the Si Sawat and Nong Prue districts of Kanchanaburi.