A moderate earthquake with a preliminary magnitude of 5.4 jolted northern Japan Sunday afternoon, the U.S. Geological Survey said. No tsunami warning was issued.

The quake was centered 145 miles northeast off the coast of Hokkaido, Japan's northernmost island, according to the USGS. It struck 37 miles under the ocean floor.

There were no immediate reports of injuries or damage.

Japan is one of the world's most earthquake-prone countries and sits atop four tectonic plates.