TOKYO – Two earthquakes, measured 6.4 and 5.0 on the Richter magnitude scale, hit southern Japan on Tuesday morning without triggering the tsunami alert. No material damages or casualties have been reported.
The first quake occurred at 10:54 am local time (0154 GMT) with a 10-kilometer deep epicenter, located about 250 kilometers south off the coast of Naha, capital of Okinawa Prefecture, according to Japan Meteorological Agency.
The earthquake reached level 3 of the Japanese seismic scale of 7, in the affected city of Miyakojima, located about 150 kilometers from the epicenter, with about 56,000 inhabitants.
A second temblor measured 5.0 on the Richter scale struck the same area and at the same depth at 11:06 am local time (0206 GMT).
No casualties or injuries from either quake have been reported.
Japan is situated on the so-called ring of fire, one of the world’s most active seismic zones. The country is known to have suffered earthquakes with relative frequency, leading to its infrastructures being designed to withstand the impact.