section_path: Earthquake/Intensity
section_name: Intensity
paragraph_text: Intensity
  
  A USGS seismic installation at Naypyidaw recorded 0.6231 g in ground acceleration (pga) and 161.42 cm/s (63.55 in/s) in ground velocity; the station data corresponded to a Modified Mercalli intensity of X (Extreme).
  
  The USGS' PAGER service estimated at least 415,000 people in areas of Mandalay, Bago, Naypyidaw and Sagaing were exposed to MMI X. Additionally, shaking corresponding to MMI IX (Violent) was exposed to an estimated 5.8 million people in the four regions. Another 3.6 million people were subjected to MMI VIII (Severe) shaking, the maximum intensity recorded in Magway Region, Shan and Kayin States. MMI VII (Very Strong) was also recorded in Kayah, Mon, Ayeyarwady, Yangon, and VI (Strong) in Rakhine, Chin, Kachins and Ruili in China. MMI V (Moderate) was recorded in Bangkok and Chiang Mai in Thailand, Dehong Dai and Jingpo Autonomous Prefecture in China, Imphal in India, and Yangon City. Overall, 38.92 million people, more than 70% of Myanmar's population, were estimated to have been exposed to shaking levels exceeding MMI VI in 14 of the 15 administrative divisions. In Thailand, shaking was felt in 63 of the country's 77 provinces.
  
  The China Earthquake Administration estimated a maximum intensity of X on the China seismic intensity scale along the 400 km (250 mi) rupture, or an area of about 11,596 km 2 (4,477 sq mi). Intensity IX surrounded the zone of maximum intensity, encompassing a 30,364 km 2 (11,724 sq mi) area. This zone was surrounded by a 64,003 km 2 (24,712 sq mi) area that experienced intensity VIII. Intensities VII and VI formed the inner and outer isoseismal bands according to the agency's assessment with areas of 16,254 km 2 (6,276 sq mi) and 149,829 km 2 (57,849 sq mi), respectively. In Nongdao, Yunnan, a seismic instrument recorded a maximum intensity of VIII, ground acceleration of 76.8 cm/s 2 (2.52 ft/s 2) and velocity of 22.9 cm/s (9.0 in/s).
  
  In Bangkok, high-rise buildings swayed which was attributed to long-period ground motion generated by the earthquake propagating beneath the city. In some buildings with 60 floors, the swaying was most extreme with movement as large as 1.6 m (5 ft 3 in) and the shaking lasting five minutes.