A strong earthquake struck eastern areas of Hokkaido Prefecture on Saturday, prompting authorities to urge vigilance.
The quake, with a magnitude of 5.8, was measured at a lower 5 on the Japanese seismic intensity scale in the city of Nemuro. It occurred at a depth of about 40 kilometers off the southeastern coast of the Nemuro Peninsula in Hokkaido.
According to the Meteorological Agency,
there was no threat of tsunami. However, the agency warned that more earthquakes could occur, measuring up to a lower 5, for about a week.
The earthquake occurred at the boundary of two plates, where an ocean plate is subducting beneath a land plate.
Author's summary: Strong quake hits Hokkaido with magnitude 5.8.