[Home]

Event ID: 20251208231519

Off the east coast of Aomori
Time of Quake	Magnitude	Depth
23:15:00 JST 08 Dec 2025	7.6	50

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

Tsunami Advisory History

Severity	Coastal Area	Local Area	Estimated Arrival Time	Wave Height
23:17:00 JST 08 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
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	Mitsuwan			0.2 m
Slight sea level change	Miyagi			0.2 m
Slight sea level change	Fukushima			0.2 m
23:18:00 JST 08 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
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	Mitsuwan			0.2 m
Slight sea level change	Miyagi			0.2 m
Slight sea level change	Fukushima			0.2 m
23:23:00 JST 08 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
23:24:00 JST 08 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
23:49:00 JST 08 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
23:56:00 JST 08 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:00:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:07:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:10:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:16:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:18:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:34:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
00:50:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
01:05:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
01:14:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
01:20:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
01:38:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
01:57:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
02:24:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Alert	Pacific coast of central Hokkaido			3 m
Tsunami Alert	Aomori-Pacific coast			3 m
Tsunami Alert	Iwate			3 m
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
02:45:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
02:45:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
02:53:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
03:57:00 JST 09 Dec 2025 - Updated or additional information
Tsunami Advisory	Eastern part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Pacific coast of central Hokkaido			1 m
Tsunami Advisory	Western part of the Pacific Coast of Hokkaido			1 m
Tsunami Advisory	Aomori-Sea of Japan			1 m
Tsunami Advisory	Aomori-Pacific coast			1 m
Tsunami Advisory	Iwate			1 m
Tsunami Advisory	Miyagi			1 m
Tsunami Advisory	Fukushima			1 m
Slight sea level change	Southern Sea of Japan coast of Hokkaido			0.2 m
Slight sea level change	Mitsuwan			0.2 m
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Slight sea level change	Chiba Uchibo			0.2 m
Slight sea level change	Tokyo Bay			0.2 m
Slight sea level change	Izu Islands			0.2 m
Slight sea level change	Ogasawara Islands			0.2 m
Slight sea level change	Sagami Bay/Miura Peninsula			0.2 m
Slight sea level change	Shizuoka			0.2 m
Slight sea level change	Mie			0.2 m
Slight sea level change	Tokushima			0.2 m
Slight sea level change	Kochi			0.2 m
Slight sea level change	Tanegashima/Yakushima			0.2 m
Slight sea level change	Amami & Tokara Islands			0.2 m
06:20:00 JST 09 Dec 2025 - Tsunami advisory cancelled
06:22:00 JST 09 Dec 2025 - Updated or additional information
Slight sea level change	Eastern part of the Pacific Coast of Hokkaido			0.2 m
Slight sea level change	Pacific coast of central Hokkaido			0.2 m
Slight sea level change	Western part of the Pacific Coast of 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
Slight sea level change	Ibaraki			0.2 m
Slight sea level change	Southern Pacific coast of Chiba			0.2 m
Cancellation	Aomori-Sea of Japan			m