A devastating 7.7-magnitude earthquake struck which country on March 28, 2025, killing thousands?

On March 28, 2025, a devastating 7.7-magnitude earthquake struck Myanmar, particularly impacting the Sagaing Region with its epicenter near Mandalay, the country's second-largest city. This powerful seismic event, which occurred around 12:50 PM local time, caused widespread destruction and tragically resulted in thousands of fatalities and injuries. Casualty figures reported by various sources indicated over 5,000 deaths in Myanmar alone, with hundreds more injured and reported missing. The earthquake's shallow depth, approximately 10 kilometers (6.2 miles), significantly amplified its destructive power, leading to intense shaking that devastated the region.

The earthquake's impact extended far beyond Myanmar's borders, with significant damage reported in neighboring Thailand, where more than 100 people died, including fatalities from a collapsed construction site in Bangkok. Tremors were also felt as far away as southwestern China and Ho Chi Minh City, Vietnam, where hundreds of apartments were affected. Critical infrastructure in Myanmar, including hospitals, roads, bridges, and communication networks, suffered severe damage, further complicating rescue and relief efforts. The widespread destruction included the collapse of thousands of homes, government buildings, and numerous religious structures, such as mosques and monasteries.

Geologically, the 2025 Myanmar earthquake occurred along the Sagaing Fault, a major strike-slip fault that runs approximately 1,200 kilometers (750 miles) through the country. This fault marks the boundary where the Indian and Eurasian tectonic plates interact, with the plates sliding past each other at a rate of about 18 millimeters per year. The region is highly seismically active, having experienced several powerful earthquakes throughout history. The 2025 event was the most powerful earthquake to strike Myanmar since 1912 and is considered the second deadliest in the country's modern history, surpassed only by the 1930 Bago earthquake in terms of upper casualty estimates. The sudden release of accumulated stress along the Sagaing Fault caused this catastrophic event, highlighting the ongoing seismic vulnerability of the region.