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Abroad in Japan · Friday, October 23, 2026

Japan Meteorological Agency issues false 9.9 earthquake alert due to location and magnitude error

Pete Ronald McDonaldson and Chris Broder discussed an erroneous earthquake early warning in Japan that flashed a magnitude 9.9 alert on mobile phones after a real 6.9 earthquake struck off the Kamchatka Peninsula. The warning was cancelled eight minutes later, and the Japan Meteorological Agency stated it incorrectly applied formulas meant for domestic earthquakes to a distant quake.

personChris BroderpersonPete Ronald McDonaldsoncompanyJapan Meteorological Agency

The tape

1 quote
“The meteorological agency of Japan, the system that they employ to figure out how, you know, shaky shaky everything's going to be, it incorrectly estimated the earthquake's location and overstated its magnitude. Which isn't ideal. It had applied formulas designed for earthquakes within Japan to a quake much farther away.”
Pete Ronald McDonaldson
Heard on Abroad in Japan — “The Terrifying Glitch That Panicked Japan!”, published Friday, October 23, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via deepinfra · $0.00
Japan Meteorological Agency issues false 9.9 earthquake alert due to location and magnitude error — Heardvine