On June 30 at 12:36 pm local time (11:36 am Hong Kong time), another earthquake occurred off the coast of the Tokara Islands in Kagoshima, Japan. The Japan Meteorological Agency estimated the magnitude at 4.5, with the epicenter located offshore and a depth of about 20 kilometers, causing strong tremors in several areas.
The Japan Meteorological Agency noted that since June 21, the Tokara Islands have experienced frequent felt earthquakes, with a record high of 103 tremors reported on June 29 alone. Local fishermen expressed their frustration, saying they are awakened every night due to the earthquakes.
Reports indicate that seismic activity around Akuseki Island and Kodakarajima in the Tokara Islands has intensified. The Japan Meteorological Agency has urged residents to be cautious of earthquake-induced shaking and to recheck preparations, such as securing furniture.
Since June 21, the waters surrounding the Tokara Islands have experienced approximately 600 earthquakes with a magnitude of 1 or higher within just 10 days. Notably, Akuseki Island recorded at least three quakes of magnitude 4 or higher on June 29, marking the highest frequency since June 24.
While there have been no reports of casualties or property damage, a 73-year-old fisherman from Akuseki Island stated that each earthquake produces a loud noise, and he wakes up every night.
In addition to Kagoshima, the Kuril Trench off the coast of Hokkaido is also showing signs of heightened seismic activity. Between mid-May and mid-June, there were six earthquakes with a magnitude of 4. According to recent observations, the Pacific Plate is pushing against the North American Plate at a rate of about 8 centimeters per year, entering a high-stress accumulation phase. If this continues, there could be significant earthquakes and tsunamis in the future.
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