
A 7.4 magnitude earthquake off north-eastern Japan near Fukushima prefecture has prompted a tsunami advisory.
The quake struck on Tuesday morning at about 06:00 local time (21:00 GMT, Monday), the Japan Meteorological Agency said.
The depth of the quake was estimated to be 30km (18.6 miles), the agency said.
The initial tsunami warning of possible 3m (10ft) waves was downgraded to an advisory just before 10:00 local time.
An advisory was also issued for Miyagi prefecture, where a 1.4m wave (4.6ft) was observed at Sendai port.
The US Geological Survey initially put the magnitude at 7.3 but later downgraded this to 6.9, lower than the number given by the Japanese authorities.
-BBC
-Agencies



















