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Event ID: 20250531173725

Off the coast of Kushiro
Time of Quake	Magnitude	Depth
17:37:00 JST 31 May 2025	6.1	20

	Tokachi-Central Kushiro-South Central Nemuro-North Hidaka-East
	Nemuro-Central Aoimori Sanpachikamikita Nemuro-South Kushiro-North Tokachi-South Tokachi-North Hidaka-Central Iburi-East Central Abashiri Ishikari-North
	Kitami Iwate Northern Inland Aoimori Shimokita Aoimori Tsugaru-North Hidaka-West Iburi-West Monbetsu Soya-North Kamikawa-North Ishikari-Central Ishikari-South Oshima-East Shiribeshi-North Shiribeshi-East Sorachi-Central Sorachi-South Kamikawa-South
	Akita Northern Inland Oshima-North Miyagi-Central Miyagi-South Miyagi-North Iwate Southern Inland Iwate Southern Coast Iwate Northern Coast Aoimori Tsugaru-South Rumoi-South Kamikawa-Central Sorachi-North Shiribeshi-West Hiyama Region Oshima-West

Tsunami Advisory History

Severity	Coastal Area	Local Area	Estimated Arrival Time	Wave Height
17:43:00 JST 31 May 2025 - Original tsunami report
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