Japan is experiencing strong earthquakes, particularly in waters southwest of its main island. While the government on Saturday warned of the possibility of further strong earthquakes, authorities are urging the public not to believe unfounded predictions of a major disaster.

The recent seismic events have fueled rumors, particularly stemming from interpretations of a 1999 comic book titled “The Future I Saw.” On Thursday, a 5.5-magnitude quake struck off the coast of Kyushu, Japan’s southernmost main island, followed by another 5.4-magnitude tremor on Saturday, Reuters reported. These tremors, strong enough to make standing difficult, were one of more than 1,000 tremors in the islands of Kagoshima prefecture in the past two weeks.