Sri Lanka, Nov. 9 -- A tsunami advisory has been issued for the Iwate Prefecture in Japan following a magnitude 6.7 earthquake that struck off the coast today (09), measuring a 4 on Japan's seismic intensity scale.

The city of Ofunato in Iwate Prefecture issued an evacuation instruction to 6,138 people in 2,825 households in the coastal areas of the city.

A 10-centimeter tsunami was observed in Ofunato Port in Iwate at 5:39 p.m. local time, and a 20-cm tsunami was observed in Kuji Port in Iwate at 5:52 p.m., according to the Japan Meteorological Agency. At 5:12 p.m., the agency said a weak tsunami had been observed 70 kilometers off the coast of Iwate.

A tsunami advisory covers predicted waves of up to 1 meter.

The quake, which struck...