A 6.8-magnitude earthquake struck off the coast of southern Japan on Monday evening, according to the United States Geological Survey. The earthquake, which occurred about 7 miles southeast of Miyazaki, Japan, may prompt revisions to its reported magnitude as seismologists gather more data. Aftershocks, which are smaller earthquakes following a larger one, were expected in the region. Aftershocks can occur days, weeks, or even years after the initial earthquake and can have equal or larger magnitudes, affecting already damaged areas. The U.S.G.S. provides a shake-severity map, showing areas with a shake intensity of 4 or greater, where the earthquake may be felt outside the depicted regions. The map is based on the Modified Mercalli Intensity scale and includes aftershocks within 100 miles and seven days of the initial quake. The data is continuously updated, and all times mentioned are in Japan time. The impact of the earthquake and potential aftershocks on the affected areas is being closely monitored by experts as necessary precautions are taken to ensure the safety and well-being of residents in the region.
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