Earthquake alerts were issued for a seismic event in the Japan Sea region on April 20, 2026, with the first report indicating a magnitude of 4.7 and the final report indicating a magnitude of 4.4.
Claims
Earthquake alerts were issued for a seismic event in the Japan Sea region on April 20, 2026, with the first report indicating a magnitude of 4.7 and the final report indicating a magnitude of 4.4.
Parent: Natural DisastersEntity: Earthquake AlertsImpact: neutralDate: Apr 20, 2026 - Apr 21, 2026Target: Earthquake alerts
Source posts
■■緊急地震速報(第1報)■■ 三陸沖で地震 最大震度 2(推定) [詳細] 2026/04/20 17:30:07発生 M4.7 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#earthquake
■■緊急地震速報(最終報)■■ 三陸沖で地震 最大震度 2(推定) [詳細] 2026/04/20 18:06:59発生 M4.4 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#earthquake
■■緊急地震速報(最終報)■■ 三陸沖で地震 最大震度 3(推定) [詳細] 2026/04/20 21:56:46発生 M5.6 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#earthquake
■■緊急地震速報(第4報)■■ 三陸沖で地震 最大震度 2(推定) [詳細] 2026/04/20 23:15:27発生 M4.7 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#earthquake
■■緊急地震速報(第5報)■■ 三陸沖で地震 最大震度 2(推定) [詳細] 2026/04/20 23:15:27発生 M4.7 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#earthquake
■■緊急地震速報(第4報)■■ 三陸沖で地震 最大震度 2(推定) [詳細] 2026/04/21 14:29:10発生 M5.1 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 21, 2026
#earthquake
■■緊急地震速報(第6報)■■ 三陸沖で地震 最大震度 3(推定) [詳細] 2026/04/21 14:29:10発生 M5.4 深さ 20km #earthquake
0 boosts · 0 favs · 0 replies · Apr 21, 2026
#earthquake