# Kamchatka earthquake and Japan alert error > Live situation record from CLSTR: https://clstr.news/situations/kamchatka-peninsula-earthquake-and-jma-alert-error > Updated: 2026-10-19T19:00:58.000Z. Sources: 82. Developments: 3. A magnitude 6.9 to 7.0 earthquake struck the Kamchatka Peninsula in eastern Russia on October 16, 2026. The epicenter was located on land, approximately 76 kilometers northeast of Ozernovskiy between the Opala and Ksudach volcanoes, at a depth of 130 to 152 kilometers. In Petropavlovsk-Kamchatsky, residents reported tremors with an intensity of up to five points in some areas, causing objects to fall and light fixtures to swing, leading some to evacuate homes as a precaution. No immediate casualties, significant structural damage, or tsunami threats were reported by agencies such as the US National Tsunami Warning Center or NOAA. The seismic event triggered a major error by the Japan Meteorological Agency (JMA), which issued an unprecedented emergency earthquake warning erroneously predicting a magnitude 9.9 event near the Kuril Islands. This figure would have exceeded the 1960 Valdivia earthquake, the strongest ever recorded. The alert caused widespread alarm across Japan, triggering automatic safety protocols, including the temporary suspension of Shinkansen high-speed rail services and local tram services in Sapporo. The warning also activated emergency notifications on millions of mobile phones and public loudspeaker systems. Following the retraction of the alert, JMA Director Ryuichi Nomura issued a formal apology, attributing the error to technical failures in earthquake scale and intensity prediction methods. Investigations confirmed the error resulted from a software anomaly where data from distant observation points were improperly integrated into the automated calculation process. The agency is currently investigating why these points were included to prevent a recurrence. ## Claims - No seismic intensity of 1 or higher was observed. (disputed by 7 sources) - The maximum seismic intensity recorded in Japan was level 1 in Hakodate. (disputed by 2 sources) - The Japan Meteorological Agency initially issued a warning for a 9.9 magnitude earthquake. (corroborated by 28 sources) - The warning was retracted within minutes. (corroborated by 28 sources) - An earthquake of magnitude 6.9 to 7.0 struck the Kamchatka Peninsula. (corroborated by 24 sources) - The earthquake occurred near the Kamchatka Peninsula in Russia. (corroborated by 23 sources) - The earthquake occurred at a depth of 160 kilometers. (corroborated by 20 sources) - The Japan Meteorological Agency issued an earthquake early warning for an earthquake in the Kuril Islands. (corroborated by 19 sources) - Warnings were temporarily issued for regions including Hokkaido, Tohoku, Kanto, and Tokai. (corroborated by 19 sources) ## Timeline ### 2026-10-19: Japan Meteorological Agency apologizes for M9.9 earthquake false alarm The Japan Meteorological Agency apologized for a technical error that issued a false magnitude 9.9 earthquake alert, causing transport disruptions and widespread alarm across Japan. 4 sources. https://clstr.news/cluster/japan-issues-apology-after-massive-99-magnitude-earthquake-false-alarm ### 2026-10-16: Kamchatka Peninsula hit by magnitude 6.9 earthquake A magnitude 6.9 to 7.0 earthquake struck Russia's Kamchatka Peninsula on Friday. No tsunami threat or casualties were reported, though some residents in Petropavlovsk-Kamchatsky evacuated as a precaution. 30 sources. https://clstr.news/cluster/kamchatka-peninsula-struck-by-magnitude-70-earthquake ### 2026-10-16: Japan Meteorological Agency issues false magnitude 9.9 earthquake warning Japan's Meteorological Agency issued a false magnitude 9.9 earthquake warning due to a calculation error, causing widespread mobile alerts and transport disruptions before retracting it minutes later. 51 sources. https://clstr.news/cluster/japan-meteorological-agency-cancels-massive-earthquake-early-warning --- Cite as: Kamchatka earthquake and Japan alert error. CLSTR, https://clstr.news/situations/kamchatka-peninsula-earthquake-and-jma-alert-error