Overall Green Earthquake in Japan on 26 Apr 2026 20:23 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.1 in Japan on 26 Apr 2026 20:23 UTC

Hazard models

Rapid Impact

Shakemap

Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude:	6.1M
Depth:	81 Km
Lat/Lon:	42.6311 , 142.9615
Event Date:	26 Apr 2026 20:23 UTC 27 Apr 2026 05:23 Local
Exposed Population:	330 thousand in MMI V
Source:	NEIC us6000st1m
Inserted at:	26 Apr 2026 20:44 UTC
INFORM Coping capacity of the alert score:	1.5 (Japan)

GDACS Score

For more info on GDACS score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000st1m	Scaled population (raster)	0
	C1 shakemap	0
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0
	Score no CC	0

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Level	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1702411		0	26 Apr 2026 20:23	6.1M, 81km	5.1	N/A (in MMI>=VII)		00:21	NEIC

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in Japan ,of Hokkaido (population 5,808,054) . The alertlevel for this event is GREEN

Intensity	Population
	330000 people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1702411	142.962/42.631	6.1	81	5.068	26 Apr 2026 20:49	00:25	(new episode)
2	1702411	142.962/42.631	6.1	81	5.25	26 Apr 2026 22:49	02:25	(upd of #1)
3	1702411	142.962/42.631	6.1	81	5.25	28 Apr 2026 02:02	1d 05:38	(upd of #2)
4	1702411	142.883/42.714	6.1	81	5.099	06 May 2026 02:01	9d 05:37	(upd of #3)

Affected Provinces

Region Province	Country	Population
Hokkaido	Japan	320000 people
Hokkaido	Japan	2.4 million people
Tohoku	Japan	40000 people
Hokkaido	Japan	<1000 people
Tohoku	Japan	1100 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Moto-sarabetsu	Hokkaido	Japan	Village	-	11 km
Ohira	Hokkaido	Japan	Village	-	11 km
Yachiyo	Hokkaido	Japan	Village	-	11 km
Naka-satsunai	Hokkaido	Japan	Village	-	18 km
Kami-ibise	Hokkaido	Japan	Village	-	19 km
Oda	Hokkaido	Japan	Village	-	21 km
Mikawa	Hokkaido	Japan	Village	-	24 km
Taisha	Hokkaido	Japan	Village	-	24 km
Memuro	Hokkaido	Japan	Village	-	29 km
Komahata	Hokkaido	Japan	Village	-	29 km
Kawanishi	Hokkaido	Japan	Village	-	29 km
Kita-fushiko	Hokkaido	Japan	Village	-	30 km
Kami-michibetsu	Hokkaido	Japan	Village	-	30 km
Moiwa	Hokkaido	Japan	Village	-	34 km
Obihiro	Hokkaido	Japan	City	170000 people	36 km
Okawa	Hokkaido	Japan	Village	-	37 km
Oikamanae	Hokkaido	Japan	Village	-	38 km
Kami-noyaushi	Hokkaido	Japan	Village	-	40 km
Shimizu	Hokkaido	Japan	Village	-	42 km
Ushishubetsu	Hokkaido	Japan	Village	-	42 km
Aiboshima	Hokkaido	Japan	Village	-	42 km
Betchako	Hokkaido	Japan	Village	-	42 km
Otofuke	Hokkaido	Japan	Village	41000 people	45 km
Kumashi	Hokkaido	Japan	Village	-	46 km
Shimo-noyaushi	Hokkaido	Japan	Village	-	46 km
Utabue	Hokkaido	Japan	Village	-	46 km
Shintoku	Hokkaido	Japan	Village	-	50 km
Ikeda	Hokkaido	Japan	Village	-	51 km
Kerimabu	Hokkaido	Japan	Village	-	51 km
Higashi-shiboro	Hokkaido	Japan	Village	-	51 km
Sariwarabe	Hokkaido	Japan	Village	-	53 km
Naka-shihoro	Hokkaido	Japan	Village	-	54 km
Ogifushi	Hokkaido	Japan	Village	-	54 km
Urimaku	Hokkaido	Japan	Village	-	55 km
Otsu	Hokkaido	Japan	Village	-	57 km
Shizunai	Hokkaido	Japan	Village	22000 people	59 km
Urahoro	Hokkaido	Japan	Village	-	60 km
Niikappu	Hokkaido	Japan	Village	-	62 km
Sakura	Hokkaido	Japan	Village	-	62 km
Mombetsu	Hokkaido	Japan	Village	-	75 km
Mukawa	Hokkaido	Japan	Village	-	85 km
Azuma	Hokkaido	Japan	Village	-	90 km
Shimo-futano	Hokkaido	Japan	Village	-	90 km
Hama-atsuma	Hokkaido	Japan	Village	-	91 km
Naka-furano	Hokkaido	Japan	Village	-	94 km
Churui	Hokkaido	Japan	Village	-	29 km
Taiki	Hokkaido	Japan	Village	-	30 km
Toyoni	Hokkaido	Japan	Village	-	39 km
Ichibu	Hokkaido	Japan	Village	-	44 km
Chiroro	Hokkaido	Japan	Village	-	45 km
Kami-notsuka	Hokkaido	Japan	Village	-	45 km
Hiroo	Hokkaido	Japan	Village	-	48 km
Sannakoro	Hokkaido	Japan	Village	-	49 km
Higashi-shizunai	Hokkaido	Japan	Village	-	51 km
Tomamu	Hokkaido	Japan	Village	-	52 km
Showa	Hokkaido	Japan	Village	-	52 km
Nishicha	Hokkaido	Japan	Village	-	52 km
Urakawa	Hokkaido	Japan	Village	-	54 km
Furenai	Hokkaido	Japan	Village	-	55 km
Samani	Hokkaido	Japan	Village	-	55 km
Kansen	Hokkaido	Japan	Village	-	57 km
Kurambetsu	Hokkaido	Japan	Village	-	62 km
Ninyu	Hokkaido	Japan	Village	-	63 km
Naka-otofuke	Hokkaido	Japan	Village	-	63 km
Hobiboe	Hokkaido	Japan	Village	-	64 km
Naka-tokomuro	Hokkaido	Japan	Village	-	64 km
Atsugacho	Hokkaido	Japan	Village	-	64 km
Rushin	Hokkaido	Japan	Village	-	66 km
Unmaku	Hokkaido	Japan	Village	-	66 km
Kamisihoro	Hokkaido	Japan	Village	-	67 km
Ikutora	Hokkaido	Japan	Village	-	67 km
Shimo-oribe	Hokkaido	Japan	Village	-	67 km
Katsupei	Hokkaido	Japan	Village	-	68 km
Rubeshibe	Hokkaido	Japan	Village	-	69 km
Hobetsu	Hokkaido	Japan	Village	-	70 km
Horoizumi	Hokkaido	Japan	Village	-	70 km
Naka-hobetsu	Hokkaido	Japan	Village	-	71 km
Biratori	Hokkaido	Japan	Village	-	71 km
Kami-piribetsu	Hokkaido	Japan	Village	-	72 km
Chipira	Hokkaido	Japan	Village	-	72 km
Sarufuto	Hokkaido	Japan	Village	-	74 km
Pombetsu	Hokkaido	Japan	Village	-	76 km
Shakubetsu	Hokkaido	Japan	Village	-	77 km
Kawamukai	Hokkaido	Japan	Village	-	78 km
Erimo	Hokkaido	Japan	Village	-	81 km
Shimizudani	Hokkaido	Japan	Village	-	82 km
Horonai	Hokkaido	Japan	Village	-	82 km
Penkebetsu	Hokkaido	Japan	Village	-	82 km
Mayachi	Hokkaido	Japan	Village	-	83 km
Ashorobuto	Hokkaido	Japan	City	-	83 km
Futamata	Hokkaido	Japan	Village	-	83 km
Ombetsu	Hokkaido	Japan	Village	-	84 km
Kami-aikappu	Hokkaido	Japan	Village	-	88 km
Naka-ashiyoro	Hokkaido	Japan	Village	-	91 km
Shimo-furano	Hokkaido	Japan	Village	-	92 km
Hayakita	Hokkaido	Japan	Village	-	95 km
Furano	Hokkaido	Japan	Village	25000 people	97 km
Shiranuka	Hokkaido	Japan	City	-	98 km
Oiwake	Hokkaido	Japan	Village	-	98 km
Kami-furano	Hokkaido	Japan	Village	-	100 km
Shoro	Hokkaido	Japan	Village	-	103 km
Yuni	Hokkaido	Japan	Village	-	105 km
Kenufuchi	Hokkaido	Japan	Village	-	106 km
Kuriyama	Hokkaido	Japan	City	-	107 km
Shitakara	Hokkaido	Japan	Village	-	108 km
Horonai	Hokkaido	Japan	Village	-	109 km
Shin-horonai-tanzan	Hokkaido	Japan	Village	-	109 km
Chitose	Hokkaido	Japan	City	92000 people	110 km
Horonaibuto	Hokkaido	Japan	Village	-	111 km
Tomakomai	Hokkaido	Japan	City	170000 people	112 km
Biei	Hokkaido	Japan	Village	-	113 km
Kurisawa	Hokkaido	Japan	Village	-	113 km
Onnebira	Hokkaido	Japan	Village	-	116 km
Iwamizawa	Hokkaido	Japan	City	84000 people	116 km
Eniwa	Hokkaido	Japan	Village	68000 people	117 km
Oji	Hokkaido	Japan	Village	-	117 km
Shimamatsu	Hokkaido	Japan	Village	-	118 km
Hachigo-shigaichi	Hokkaido	Japan	Village	-	118 km
Kushiro	Hokkaido	Japan	City	23000 people	122 km
Nishikioka	Hokkaido	Japan	Village	-	125 km
Kami-tappu	Hokkaido	Japan	Village	-	125 km
Shimo-setchiri	Hokkaido	Japan	Village	-	125 km
Ebetsu	Hokkaido	Japan	City	130000 people	127 km
Sunagawa	Hokkaido	Japan	City	20000 people	128 km
Shinotsu	Hokkaido	Japan	Village	-	129 km
Atsubetsu	Hokkaido	Japan	Village	-	130 km
Karikan	Hokkaido	Japan	Village	-	131 km
Shiraoi	Hokkaido	Japan	Village	21000 people	132 km
Kikusui	Hokkaido	Japan	Village	-	135 km
Tobetsu	Hokkaido	Japan	Village	-	135 km
Tsukisamu	Hokkaido	Japan	Village	-	135 km
Takkomu	Hokkaido	Japan	Village	-	136 km
Awa	Hokkaido	Japan	Village	-	137 km
Ebeotsu	Hokkaido	Japan	Village	-	138 km
Fukagawa	Hokkaido	Japan	City	26000 people	142 km
Moseushi	Hokkaido	Japan	City	-	143 km
Kotoni	Hokkaido	Japan	Village	-	150 km
Yawara	Hokkaido	Japan	Village	-	150 km
Jozankei	Hokkaido	Japan	Village	-	151 km
Horokanai	Hokkaido	Japan	Village	-	167 km
Otaru	Hokkaido	Japan	City	140000 people	172 km
Doya	Hokkaido	Japan	Village	-	174 km
Todohokke	Hokkaido	Japan	Village	-	175 km
Netanai	Hokkaido	Japan	Village	-	180 km
Kami-shokotsu	Hokkaido	Japan	Village	-	180 km
Rausu	Hokkaido	Japan	City	-	238 km
Wakinosawa	Aomori	Japan	Village	-	243 km
Tsunashirazu	Aomori	Japan	Village	-	253 km
Mora	Aomori	Japan	Village	-	255 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
Obihiro	OBO	149	Civ.	Paved	Yes	8200	24 km
Tokachi		84	Civ.	Paved	Yes	4900	33 km
Sado Shima	SDS	unknown				0	47 km
Sapporo-New Chitose	CTS	21	Civ.	Paved	Yes	9800	105 km
Sappora / Chitose		27	Mil.	Paved	Yes	9800	108 km
Sapporo	OKD	8	Civ.	Paved	Yes	4500	140 km

Ports

Name	LOCODE	Country	Distance
Otsu	JPOTU	Japan	57 km
Tokachi	JPTOK	Japan	51 km
Samani	JPSAM	Japan	56 km
Tomakomai	JPTMK	Japan	110 km
Otaru	JPOTR	Japan	172 km
Hakodate	JPHKD	Japan	207 km
Ominato	JPOMT	Japan	211 km

Dams

Reservoir	Dam Name	River	Year	Distance
Higashinosawachoseichi	Higashinosawa	Koikakushushibicharigawa	1987	23 km
Poroshiriko	Okunikappu	Nikappugawa	1963	24 km
Takamiko	Takami	Shizunaigawa	1983	33 km
Niikappu	Niikappu	Niikappugawa	1974	33 km
Mitsuishi	Mitsuishi	Mitsuishigawa	1991	35 km
Shimonikappu	Shimonikappu	Nikappugawa	1969	36 km
Shizunaichoseichi	Shizunai	Shizunaigawa	1966	40 km
Samaniko	Samani	Samanigawa	1974	50 km
Iwachishi	Iwachishi	Sarugawa	1958	50 km
Kuttariko	Kuttari	Tokachigawa	1987	58 km
Sahoroko	Sahoro	Sahorogawa	1984	61 km
Iwamatsuko	Iwamatsu	Tokachigawa	1943	63 km
Nibutaniko	Nibutani	Sarugawa	n/a	67 km
Higashitaisetsuko	Tokachi	Tokachigawa	1984	68 km
Kanayamako	Kanayama	Sorachigawa	1967	69 km
Azuma	Azuma	Azumagawa	1969	78 km
Ashoroko	Kakkomi	Biribetsugawa	1955	79 km
Tomura	Tomura	Tomuraushigawa	1978	89 km
Kawabata	Kawabata	Yubarigawa	1962	91 km
Shikisaiko	Shirogane	Oyaunnaigawa	1996	100 km
Nisshin	Nisshin	Pirikafuranuigawa	1970	102 km
Seidaichosuichi	Seidaichosuichi	Ubakubetsugawa	1937	115 km
Eniwako	Izarigawa	Izarigawa	1980	126 km
Tomisatoko	Tomisato	Nikorogawa	1987	150 km
Tanosawatameike	Tanosawatameike	Shimizugawa	1942	253 km

Nuclear Facilities

Site Name	Type	Name	Country	Distance
Site-Higashi Dori	Nuclear Power Reactor	Higashi Dori-1	Japan	207 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

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