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https://www.juneauempire.com/2026/04/20/no-tsunami-threat-expected-for-alaska-after-m7-4-earthquake-off-japan/
No tsunami threat expected for Alaska after M7.4 earthquake off Japan | Juneau Empire
Apr 20, 2026 - The earthquake hit just before midnight of the east coast of Honshu, Japan
tsunami threatm7 4juneau empireexpectedalaska
https://mainichi.jp/articles/20260420/k00/00m/040/167000c
青森で震度5強 M7.4 岩手、青森、北海道に津波警報 | 毎日新聞
Apr 20, 2026 - 20日午後4時53分ごろ、青森県で震度5強を観測する地震があった。震源は三陸沖で、震源の深さは約10キロ、地震の規模を示すマグニチュード（M）は7・4と推定される。
m7 4
https://www.mappr.co/japan-earthquake-april-2026/
Mapped: M7.4 Earthquake Off Japan's Sanriku Coast — Tsunami Warning for Iwate, Aomori, and Hokkaido...
Apr 21, 2026 - An M7.4 earthquake struck 100 km east-northeast of Miyako, Iwate at 16:53 JST on April 20, 2026. JMA issued a 3 m tsunami warning; actual waves peaked at 80 cm...
m7 4tsunami warningmappedearthquakejapan