Japan Agency Issues Erroneous 9.9 Quake Warning After Russia Tremor

A magnitude 6.9 to 7.0 earthquake struck Russia’s Kamchatka Peninsula on October 16, with agencies reporting a depth of roughly 130 to 143 kilometers. The Pacific Tsunami Warning Center reported no tsunami threat, and initial reports gave no confirmed casualties or significant damage; the USGS assessed the likelihood of fatalities and economic losses as low. Japan’s Meteorological Agency mistakenly issued an early warning estimating a magnitude 9.9 quake and forecasting strong shaking across much of Japan, despite the event’s reported magnitude of 6.9.