U.S. Geological Survey geophysicist Gavin Hayes said the area in Arunachal Pradesh state is sparsely populated so not many casualties or much damage was expected.
The USGS said the quake was magnitude 5.9 with an epicenter 33 kilometers (20 miles) north-northwest of Along, India. It was a relatively shallow 14 kilometers (8.7 miles) below the surface.
Hayes says this area of the Himalayan frontal thrust has had some large quakes in the distant past, making experts more alert to the possibility that a bigger one might be next. However, he says most earthquakes are not followed by larger ones.
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