A 7.5 magnitude earthquake struck near Mandalay, Myanmar, causing significant damage due to soil liquefaction and resonant building vibrations. The effects were felt in Bangkok, where casualties occurred, leading to a state of emergency declaration. Aftershocks followed the main tremor, compounding the damage and highlighting regional seismic risks.
The National Centre for Seismology (NCS) of India reported that a recent earthquake in Myanmar caused significant damage due to soil liquefaction and the matching of the earthquake’s shaking frequency with the natural vibrations of buildings. This phenomenon led to a catastrophic impact on structures.
The earthquake, registered at a magnitude of 7.5, occurred near Mandalay and was felt as far away as Bangkok, more than a thousand kilometers from the epicenter. The NCS noted that seven aftershocks followed, with magnitudes ranging from 3.5 to 7.
O P Mishra, head of the NCS, highlighted that the earthquake was triggered by the Sagaing Fault, which lies approximately 1,200 kilometers east of the Indo-Burma subduction zone. The waves of energy from the quake traveled toward Bangkok, exacerbating the damage there.
Notably, a strong aftershock measuring 7 magnitude struck just 12 minutes after the main earthquake, intensifying the destruction. The area is known for significant seismic activity, having experienced similar earthquakes in both 1912 and 1956.
Casualties were reported, including at least three fatalities in Bangkok, where a high-rise building under construction collapsed. In response, Myanmar’s military government has declared a state of emergency in six regions, including Mandalay and the capital, Nay Pyi Taw.
In summary, the earthquake that struck Myanmar had widespread repercussions, especially in Bangkok, due to soil liquefaction and resonant vibrations damaging buildings. The NCS provided insights into the seismic conditions that exacerbated the situation, and the ongoing aftershocks continue to pose a threat to stability in the region. The incident highlights the vulnerabilities of infrastructure in seismically active areas and the importance of preparedness.
Original Source: www.hindustantimes.com
