Two earthquakes with magnitudes M4.4 and M4.9 occurred off the coast of Miyako, Japan, both at a depth of 10km.
Claims
Two earthquakes with magnitudes M4.4 and M4.9 occurred off the coast of Miyako, Japan, both at a depth of 10km.
Parent: Natural DisastersEntity: EarthquakesImpact: neutralDate: Apr 20, 2026Target: The occurrence and magnitude of the earthquakes
Tsunami warnings have been issued following the earthquakes, indicating potential for significant wave activity.
Parent: Tsunami WarningsEntity: Tsunami AlertsImpact: negativeDate: Apr 20, 2026Target: The issuance of tsunami warnings
Source posts
ℹ️ 最大震度1 震源・震度情報
20日18時6分頃発生
震源三陸沖/深さ10km/規模M4.4
津波警報等(大津波警報・津波警報あるいは津波注意報)を発表中です。
0 boosts · 0 favs · 0 replies · Apr 20, 2026
ℹ️ 最大震度1 震源・震度情報
20日19時44分頃発生
震源三陸沖/深さ10km/規模M4.9
津波警報等(大津波警報・津波警報あるいは津波注意報)を発表中です。
0 boosts · 0 favs · 0 replies · Apr 20, 2026
ℹ️ 最大震度3 震源・震度情報
20日21時56分頃発生
震源三陸沖/深さ10km/規模M5.4
津波警報等(大津波警報・津波警報あるいは津波注意報)を発表中です。
0 boosts · 0 favs · 0 replies · Apr 20, 2026
ℹ️ 最大震度1 震源・震度情報
20日23時15分頃発生
震源三陸沖/深さ10km/規模M4.6
津波警報等(大津波警報・津波警報あるいは津波注意報)を発表中です。
0 boosts · 0 favs · 0 replies · Apr 20, 2026