JSCE Disaster Reports

Title:
Field Investigation Report on Damage from the March 2025 Myanmar Earthquake

Authour:
Yuki OSHIRO1, Takeshi KITAHARA2,3, Yasuo KITANE4, and Kunitomo SUGIURA5

1 Member of JSCE, Assistant Professor, Dept. of Civil Eng., University of the Ryukyus
2 Member of JSCE, Professor, Dept. of Civil Eng., Kanto Gakuin University
3 Member of JSCE, Program-Specific Professor, GSGES, Kyoto University
4 Member of JSCE, Professor, Dept. of Civil and Earth Resources Eng., Kyoto University
5 Member of JSCE, Visiting Professor, GSGES, Kyoto University

Key Facts

• Hazard Type: Earthquake
• Date of the disaster: March 28, 2025
• Location of the survey: Sagaing, Mandalay, Myanmar
• Date of the field survey: August 15, 2025
• Survey tools: Digital camera, GPS

Key findings: 
1) For the Yadanarpon Bridge investigated in this study, comparisons between the observed damage and analytical findings confirmed that the transverse bracing between the bearings is a particularly critical structural component. In addition, the overall structure was found to be inclined toward the downstream side; interviews with local engineers further indicated that how to address this in cli-nation will be a key issue in future repair works.
2) At Sagaing Technological University, extensive damage was identified inside the buildings, including buckling of longitudinal reinforcing bars in columns and widespread shear failure of walls. Surface ground offsets associated with fault slip were also observed in the vicinity of the university.

Key Words: 2025 Myanmar Earthquake, Sagaing Fault, damage to bridges, damage to buildings, repair

Paper: PDF 2,115KB