Two moderate earthquakes struck off Japan's coastlines Monday morning, but there was no danger of tsunami from either temblor, the Meteorological Agency said.
The first quake, with a preliminary magnitude of 5.1, occurred off the northwestern coast in the Sea of Japan at 7:28 a.m. about 380 km below the seabed, the agency said.
No injuries or damage were immediately reported.
Hours later, a second quake with a preliminary magnitude of 5.7 occurred off the southeastern coast in waters near the island of Chichijima at 10:31 a.m., the agency said.
No injuries or damage were immediately reported from the second quake, which was centered about 210 km below the surface.