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Reply to @lina@vt.social
Hoshino Lina (星乃リナ) 🩵 3D Yuri Wedding 2026!!!@lina@vt.social (2026-10-16 13:27:02)
Ohh so there were two warnings. The real one and the fake one. 2 minutes apart. That's about as long as it takes for the waves to move the distance.

So maybe they DID get the P waves, then when the S waves came, they were incorrectly detected as new P waves for a bigger quake?
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Masanori Ogino 𓀁@omasanori@mstdn.maud.io (2026-10-16 13:35:43)
@lina actually they were the false alert (the first one; overestimated earthquake intensity) and its correction (the second one) but the presentation of correction was not properly implemented on client devices, seemingly

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Hoshino Lina (星乃リナ) 🩵 3D Yuri Wedding 2026!!!@lina@vt.social (2026-10-16 13:41:55)
@omasanori It was actually a normal report first (too weak to be notified to users), but then strangely was updated to 9.9. See the data here: https://www.data.jma.go.jp/eew/data/nc/pub_hist/2026/10/20261016123810/fc/index.html