NE generating moderate earthquakes at two different depths: Study

DY365
DY365
Published: July 27,2020 11:05 AM
DY365

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July 27, 2020: A study has revealed new facts about the frequent earthquakes occurring in the northeastern region.

July 27, 2020: A study has revealed new facts about the frequent earthquakes occurring in the northeastern region.



According to a study conducted by the Wadia Institute of Himalayan Geology, the area is generating moderate earthquakes at two different depths. The study found that low magnitude earthquakes are epicentred at 1-15 km depth and slightly higher than 4.0 magnitude earthquakes are mostly generated from 25-35 km depth.



The study done exploring the elastic properties of rocks and seismicity in the easternmost part of the country has found that the area is generating moderate earthquakes at two different depths.



According to the study, the crustal thickness in this area varies from 46.7 km beneath the Brahmaputra valley to about 55 kms in the higher elevations of Arunachal, with a marginal uplift of the contact that defines the boundary between crust and the mantle, technically called the Moho discontinuity. The study also indicated the presence of fluid or partial melt at crustal depths at higher parts of the Lohit valley.



Meanwhile, an earthquake of magnitude 3.8 was reported near Pangin in Arunachal Pradesh on Sunday night. The epicentre of the earthquake was 286 km north (N) of Pangin, Arunachal Pradesh. (Agencies)