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Event ID: 20251212114419

Off the east coast of Aomori
Time of Quake	Magnitude	Depth
11:44:00 JST 12 Dec 2025	6.7	20

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

Tsunami Advisory History

Severity	Coastal Area	Local Area	Estimated Arrival Time	Wave Height
11:52:00 JST 12 Dec 2025 - Original tsunami report
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Aomori-Sea of Japan			0.2 m
Slight sea level change	Fukushima			0.2 m
11:52:00 JST 12 Dec 2025 - Updated or additional information
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Aomori-Sea of Japan			0.2 m
Slight sea level change	Fukushima			0.2 m
12:26:00 JST 12 Dec 2025 - Updated or additional information
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Aomori-Sea of Japan			0.2 m
Slight sea level change	Fukushima			0.2 m
12:39:00 JST 12 Dec 2025 - Updated or additional information
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Aomori-Sea of Japan			0.2 m
Slight sea level change	Fukushima			0.2 m
12:44:00 JST 12 Dec 2025 - Updated or additional information
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Aomori-Sea of Japan			0.2 m
Slight sea level change	Fukushima			0.2 m
14:05:00 JST 12 Dec 2025 - Tsunami advisory cancelled
14:06:00 JST 12 Dec 2025 - 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