The 25-26 September 2026 cluster of landslides in Tanintharyi Region, Myanmar
A low pressure system triggered hundreds of landslides in the west of Myanmar in September. My calculation is that there were 12 fatal landslides killing 40 people. On 25-26 September 2026, an area of low pressure over the North Andaman Sea generated strong monsoon conditions across southern Myanmar. The system generated torrential rainfall, most notably […]
From 25-26 September 2026, low pressure over the North Andaman Sea generated strong monsoon conditions across southern Myanmar, leading to torrential rainfall in the Tanintharyi Region. This resulted in over 49,000 people being affected, with 25 fatalities and 11 injuries reported by Relief Web. However, the author's analysis indicates that there were 12 fatal landslides, causing 40 fatalities.
Satellite imagery captured by Planet Labs on 1 October 2026 revealed the extent of the landslides in the Tanintharyi Region. The area was compared to its state pre-rainfall on 9 May 2026, showing a significant impact from the intense rainfall. Another area of landslides with a similar pattern was discovered to the south of the initial affected zone.
The landslides primarily consisted of shallow failures that combined to form channelized debris flows. Prior to the landslides, the region displayed a complex pattern of vegetation, which could be investigated further to understand the relationship between the landslide pattern and the vegetation.
Written by urgent.news from Eos's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
