A magnitude 5.3 earthquake occurred near Myanmar's southern coast, 23 kilometers from the "Sagaing Fault." No impacts have been reported. Introducing the most powerful 'sleeping giant' in ASEAN.
The Earthquake Surveillance Division of the Meteorological Department (TMD) reported a new earthquake near Myanmar's southern coast. Although no damage has been reported, the epicenter is only a few dozen kilometers from one of the region's most dangerous faults.
Date and time of event: 18 May 2026 at 09:05 GMT+7.
Magnitude: 5.3.
Depth of epicenter: 10 kilometers.
Key observation: approximately 23 kilometers from the Sagaing Fault.
Current situation: reports confirm shaking was felt in the area, but no damage has been reported so far.
Since this event occurred just 23 kilometers from the "Sagaing Fault," disaster monitoring authorities have refocused attention on this fault, which has an interesting history as follows.
Background and behavior: The Sagaing Fault is a strike-slip fault running north-south through central Myanmar, extending over 1,500 kilometers. Nicknamed the "sleeping giant," it accumulates energy over long periods before releasing it in large earthquakes. Over the past 500 years, it has generated more than 70 major earthquakes (magnitude 7.0 or higher), including the most devastating in history: an 8.0 magnitude quake in Mandalay in 1912 and a 7.3 magnitude quake in Pako in 1930.
Depth and mechanism: The Sagaing Fault is a crustal fault with a locking depth—the upper crustal zone where stress accumulates—between 10 and 15 kilometers underground. This aligns with the recent earthquake's shallow depth of 10 kilometers, classifying it as a shallow quake capable of transmitting tremors to Bangkok's soft clay layers and high-rise buildings, which have frequently felt such shaking in the past.
The public wishing to monitor earthquake news and the situation closely can contact the Earthquake Surveillance Division, Meteorological Department, at 02-3994547 or visit www.earthquake.tmd.go.th.