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Event ID: 20260326231858

Off the coast of Sanriku
Time of Quake	Magnitude	Depth
23:18:00 JST 26 Mar 2026	6.5	10

	Iwate Northern Inland
	Iwate Northern Coast Yamagata-Murayama Yamagata-Shonai Akita Southern Inland Akita Southern Coast Akita Northern Coast Miyagi-Central Miyagi-South Miyagi-North Aoimori Shimokita Aoimori Sanpachikamikita Aoimori Tsugaru-North Oshima-East Iwate Southern Inland Iwate Southern Coast
	Aoimori Tsugaru-South Hidaka-West Hiyama Region Oshima-West Ishikari-South Ishikari-Central Ishikari-North Akita Northern Inland Yamagata-Mogami Yamagata-Okitami Fukushima-Nakadori Fukushima-Hamadori Fukushima-Aizu Ibaraki-North Saitama-North Niigata-Chuetsu Niigata-Kaetsu Sorachi-South Iburi-East Central Hidaka-Central Hidaka-East Tokachi-Central Tokachi-South Sorachi-North Iburi-West
	Nemuro-South Shizuoka-East Nagano-Central Yamanashi East-Fuji 5 Lakes Yamanashi Central West Tokyo 23 Wards Chiba-Northwestern Chiba-Northeastern Gunma-South Tochigi-South Saitama-South Kushiro-South Central Ibaraki-South Nemuro-Central Nemuro-North Oshima-North Shiribeshi-North Shiribeshi-East Sorachi-Central Kamikawa-South Rumoi-South Kitami Tokachi-North

Tsunami Advisory History

Severity	Coastal Area	Local Area	Estimated Arrival Time	Wave Height
23:25:00 JST 26 Mar 2026 - Original tsunami report
Slight sea level change	Pacific coast of central Hokkaido			0.2 m
Slight sea level change	Aomori-Pacific coast			0.2 m
Slight sea level change	Iwate			0.2 m
Slight sea level change	Miyagi			0.2 m
Slight sea level change	Fukushima			0.2 m
23:36:00 JST 26 Mar 2026 - Updated or additional information
Slight sea level change	Pacific coast of central Hokkaido			0.2 m
Slight sea level change	Aomori-Pacific coast			0.2 m
Slight sea level change	Iwate			0.2 m
Slight sea level change	Miyagi			0.2 m
Slight sea level change	Fukushima			0.2 m