Japan’s meteorological agency has issued a warning of an increased risk of a major earthquake in the coming days after a 7.1-magnitude quake struck off the southern coast of Kyushu on Thursday. The agency highlighted the possibility of a larger, more devastating earthquake occurring along the Nankai Trough, a known seismic risk zone off Japan’s eastern coast.
Japan has long anticipated a significant earthquake in this region, with researchers estimating a 60 percent chance of a magnitude 8 to 9 quake in the next 20 years. This potential disaster could surpass the 2011 earthquake that devastated the northeast coast and caused a nuclear crisis at Fukushima Daiichi.
In response to the recent quake, the meteorological agency convened experts to assess the likelihood of a larger “Nankai Trough megathrust earthquake.” Such an event could lead to extensive damage, tsunamis, and significant casualties across Japan.
The agency has issued a “caution” level warning, the first of its kind in Japan, and advised residents to prepare for potential evacuation if necessary. Prime Minister Fumio Kishida emphasized the importance of readiness and stated that the government is on high alert.
Earlier, a tsunami advisory was issued for Kyushu and Shikoku, though the highest recorded wave was about a foot and a half off Miyazaki Prefecture. No deaths were reported, but there were minor injuries. The earthquake, which occurred less than 20 miles from Miyazaki, led to temporary disruptions in bullet train service and airport operations, both of which have since resumed.
In addition to the heightened risk of a major earthquake, the meteorological agency warned of potential aftershocks and landslides, particularly if rain occurs in the coming days.
