Raghu kumar

Scientists found geological evidence of eastern Himalaya earthquake recorded in history

• Scientists have found the first geological evidence of an earthquake at Himebasti Village on the border of Assam and Arunachal Pradesh, documented by historians as Sadiya earthquake in history, which is recorded to have caused massive destruction in the region and almost destroyed the town in 1697 CE.
• This finding could contribute to a seismic hazard map of the eastern Himalaya, which can facilitate construction and planning in the region.
• The study of the earthquake at Sadiya standing on a grassy plain, almost surrounded by forested Eastern Himalayas on the right bank of Lohit River, adds an important site to the seismic hazard assessment of the eastern Himalaya, which will benefit the inhabitants and help in providing better infrastructure across the Eastern Himalayan foothills which is one of the most densely populated regions in the world.

Figure 1. Seismotectonic map and chronology of earthquakes in the eastern Himalaya. Also Observations and model results related to the 1697 A.D. Sadiya earthquake of magnitude 7.9 ± 0.2. Surface rupture information from paleoseismological studies: Him: Himebasti (this study), Nig: Niglok (Priyanka, 2018) sites with no observed seventeenth-century surface rupture according to Kumar et al. [2010] and Priyanka et al., [2017] Na: Nameri, Har: Harmutty, and Pa: Pasighat. Intensity observations are described in the text: Sa: Sadiya; Ba: Barnadi Bridge.

Thank you modi jii 🙏🙏🙏