Japanese authorities have withdrawn a magnitude 9.9 earthquake warning after determining it was issued in error, while transport operations were disrupted.
According to Kyodo News on October 17, 2026, the incident involved an earthquake alert issued for a magnitude of up to 9.9. That is an extremely high level, normally associated only with earthquakes of enormous destructive power.
After identifying the error, the authorities withdrew the alert. The incident was reported to have affected transport operations, although details on the scope and extent of the disruption were not specified.
So far there has been no information on damage caused by the mistaken alert.
