Tokyo, June 28 -- A strong earthquake of magnitude 6.1 struck off the coast of Iwate Prefecture in northeastern Japan early Sunday, the Japan Meteorological Agency (JMA) said, adding that there is no risk of a tsunami from the quake.

According to the JMA, the earthquake occurred at 5:21 am (local time) at a depth of 41 kilometres.

The quake registered a maximum seismic intensity of lower 5 (5-) on Japan's seismic intensity scale in Hachinohe City, Aomori Prefecture, and Fudai Village, Iwate Prefecture. Tremors ranging in intensity from 4 to 1 were felt across areas extending from Hokkaido to the Kanto-Koshin region.

The agency said the earthquake was caused by a reverse fault with a pressure axis running in the west-northwest to east-s...