The death toll from a massive earthquake that hit Myanmar and Thailand passed 1,000 on Saturday, as rescuers dug through the rubble of collapsed buildings and structures.

The shallow 7.7-magnitude quake struck northwest of the city of Sagaing in central on Friday causing massive destruction across large parts of the country.

The earthquake, which was recorded at 6:21 am GMT by the United States Geological Survey (USGS), affected large swathes of Myanmar, including the city of Mandalay, and parts of neighboring , with tremors reaching as far as China’s Yunnan province.

Buildings collapsed, roads buckled, and several high-rise structures, including a building under construction in , Thailand’s capital, were completely destroyed. The full scale of the damage in Myanmar remains unclear, but reports are pouring in of widespread destruction, particularly in Mandalay and nearby towns like Toungoo and Aungban.

The earthquake occurred along the Sagaing Fault, a tectonic boundary between the Indian and Eurasian plates. This boundary, known for producing large strike-slip earthquakes, has seen similar incidents in the past, with several magnitude 7 or greater quakes recorded in the region since 1900.

The USGS attributed the earthquake to “strike-slip faulting,” where the Indian plate is sliding northward along the fault, rubbing against the Eurasian plate. Bill McGuire, emeritus professor of geophysical and climate hazards at University College London, explained that shallow quakes like this one are especially devastating due to the concentration of energy near the surface.

India is sending over 15 tonnes of relief material to  following a series of powerful , sources said. India will send the relief materials to Myanmar aboard an Indian Air Force (IAF) C-130J aircraft from Air Force Station Hindon, sources stated.