Overall Green Earthquake in Japan on 26 Mar 2026 14:18 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 6.5 in Japan on 26 Mar 2026 14:18 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:	6.5M
Depth:	9.5 Km
Lat/Lon:	39.4462 , 143.3717
Event Date:	26 Mar 2026 14:18 UTC 27 Mar 2026 00:18 Local
Exposed Population:	1.6 million in MMI IV
Source:	NEIC us7000s7u4
Inserted at:	26 Mar 2026 14:37 UTC
INFORM Coping capacity of the alert score:	1.1 (Japan)

GDACS Score

For more info on GDACS score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	0		0.2		0.2
us7000s7u4	Scaled population (raster)	0	Max wave alert	0.23m
	C1 shakemap	0	Max wave realtime	0.23m
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0
	Score no CC	raster

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	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1695357	0	26 Mar 2026 14:18	5.8M, 16.7km	3.2	No people affected (in 100km)		00:10	ALASKA EC
1695358	0	26 Mar 2026 14:18	5.9M, 24.8km	3.67	1 thousand (in 100km)		00:10	ALASKA EC
1695359	0	26 Mar 2026 14:18	5.9M, 31.9km	3.69	4 thousand (in 100km)		00:11	ALASKA EC
1695360	0	26 Mar 2026 14:18	5.9M, 32.4km	3.69	50 thousand (in 100km)		00:13	ALASKA EC
1695363	0.2	26 Mar 2026 14:18	6.5M, 9.5km	4.34	N/A (in MMI>=VII)	0.2m (at 00:23)	00:18	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 Tohoku (population 9,984,608) . The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1695363	143.372/39.446	6.5	9.5	4.339	26 Mar 2026 14:42	00:23	(new episode)
2	1695363	143.372/39.446	6.5	9.5	4.276	26 Mar 2026 16:43	02:24	(upd of #1)
3	1695363	143.372/39.446	6.5	9.5	4.339	28 Mar 2026 14:00	1d 23:41	(upd of #2)

Affected Provinces

Intensity	Region Province	Country	Population
	Tohoku	Japan	690000 people
	Tohoku	Japan	no people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Oura	Iwate	Japan	Village	-	114 km
Ishihama	Iwate	Japan	Village	-	117 km
Sasasawa	Iwate	Japan	Village	-	119 km
Osawa	Iwate	Japan	Village	-	119 km
Omoe	Iwate	Japan	Village	-	120 km
Funakoshi	Iwate	Japan	Village	-	120 km
Yamada	Iwate	Japan	Village	20000 people	123 km
Miyako	Iwate	Japan	City	51000 people	123 km
Anto	Iwate	Japan	Village	-	123 km
Tsugaruishi	Iwate	Japan	Village	-	124 km
Taro	Iwate	Japan	Village	-	124 km
Shirahama	Iwate	Japan	Village	-	127 km
Settai	Iwate	Japan	Village	-	127 km
Omoto	Iwate	Japan	Village	-	128 km
Ryoishi	Iwate	Japan	Village	-	128 km
Neichi	Iwate	Japan	Village	-	128 km
Kamaishi	Iwate	Japan	City	42000 people	129 km
Otsuchi	Iwate	Japan	Village	16000 people	130 km
Fudaba	Iwate	Japan	Village	-	133 km
Shimanokoe	Iwate	Japan	Village	-	134 km
Kozawa	Iwate	Japan	Village	-	135 km
Hongo	Iwate	Japan	Village	-	135 km
Otomo	Iwate	Japan	Village	-	135 km
Moichi	Iwate	Japan	Village	-	137 km
Fudai	Iwate	Japan	Village	-	138 km
Sawa	Iwate	Japan	Village	-	138 km
Okkirai	Iwate	Japan	Village	-	139 km
Haratai	Iwate	Japan	Village	-	140 km
Iwaizumi	Iwate	Japan	Village	-	142 km
Numafukuro	Iwate	Japan	Village	-	143 km
Wainai	Iwate	Japan	Village	-	145 km
Noda-Tamagawa	Iwate	Japan	Village	-	147 km
Ofunato	Iwate	Japan	Village	37000 people	148 km
Kutsukake	Iwate	Japan	Village	-	151 km
Noda	Iwate	Japan	Village	-	152 km
Tomari	Iwate	Japan	Village	-	154 km
Kuji	Iwate	Japan	Village	-	156 km
Rikuzen-Takata	Iwate	Japan	Village	-	157 km
Tono	Iwate	Japan	Village	27000 people	159 km
Kudschi	Iwate	Japan	Village	-	159 km
Tadagoe	Miyagi	Japan	Village	-	161 km
Mikkamachi	Iwate	Japan	Village	-	161 km
Kesennuma	Miyagi	Japan	Village	59000 people	161 km
Matsuzaki	Miyagi	Japan	Village	-	166 km
Uge	Iwate	Japan	Village	-	166 km
Futatsuya	Iwate	Japan	Village	-	168 km
Otomomachi	Iwate	Japan	Village	-	169 km
Kuriyama	Iwate	Japan	Village	-	170 km
Oya	Miyagi	Japan	Village	-	171 km
Taneichi	Iwate	Japan	Village	-	174 km
Akedo	Iwate	Japan	Village	-	174 km
Ono	Iwate	Japan	Village	-	176 km
Motoyoshi	Miyagi	Japan	Village	-	177 km
Ohara	Iwate	Japan	Village	-	177 km
Minato	Miyagi	Japan	Village	-	178 km
Isatomae	Miyagi	Japan	Village	-	179 km
Kami-tsuyakawa	Iwate	Japan	Village	-	179 km
Ide	Iwate	Japan	Village	-	180 km
Kawajiri	Iwate	Japan	Village	-	182 km
Okubo	Iwate	Japan	Village	-	182 km
Terahama	Miyagi	Japan	Village	-	185 km
Sarusawa	Iwate	Japan	Village	-	185 km
Semmaya	Iwate	Japan	Village	-	186 km
Fujisawa	Iwate	Japan	Village	-	186 km
Shizugawa	Miyagi	Japan	Village	-	187 km
Nagasaka	Iwate	Japan	Village	-	189 km
Esashika	Iwate	Japan	Village	-	190 km
Karumai	Iwate	Japan	Village	-	190 km
Tsukihama	Miyagi	Japan	Village	-	191 km
Futsukamachi	Iwate	Japan	Village	-	191 km
Tashiro	Aomori	Japan	Village	-	191 km
Ichinosawa	Aomori	Japan	Village	-	196 km
Nagatsura	Miyagi	Japan	Village	-	197 km
Hachinohe	Aomori	Japan	City	240000 people	198 km
Kenyoshi	Aomori	Japan	Village	-	206 km
Ichikawa	Aomori	Japan	Village	-	207 km
Mita	Aomori	Japan	Village	-	209 km
Furumagi	Aomori	Japan	Village	-	216 km
Misawa	Aomori	Japan	Village	43000 people	219 km
Fujishima	Aomori	Japan	Village	-	222 km
Tanichito	Aomori	Japan	Village	-	226 km
Ogara	Aomori	Japan	Village	-	227 km
Kurauchi	Aomori	Japan	Village	-	229 km
Shichinohe	Aomori	Japan	Village	-	234 km
Rokkasho	Aomori	Japan	Village	-	235 km
Dedo	Aomori	Japan	Village	-	242 km
Arito	Aomori	Japan	Village	-	246 km

see full list

Critical infrastructure

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

Airports

Intensity	Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
	Hachinohe	HHE	46	Mil.	Paved	Yes	7300	204 km
	Misawa Naf	MSJ	36	Mil.	Paved	Yes	10000	221 km

Ports

Name	LOCODE	Country	Distance
Yamada		Japan	121 km
Miyako	JPMYK	Japan	122 km
Kamaishi	JPKIS	Japan	129 km
Fudai		Japan	136 km
Ofunato	JPOFT	Japan	149 km
Kesennuma Ko		Japan	166 km
Hachinohe	JPHHE	Japan	196 km

Dams

Intensity	Reservoir	Dam Name	River	Year	Distance
	Yukiyagawa	Yukiyagawa	Yukiyagawa	1976	184 km

Nuclear Facilities

Site Name	Type	Name	Country	Distance
Site-Onagawa	Nuclear Power Reactor	Onagawa-2	Japan	200 km
Site-Onagawa	Nuclear Power Reactor	Onagawa-3	Japan	200 km
Site-Onagawa	Nuclear Power Plant	Onagawa-1	Japan	200 km
Site-Higashi Dori	Nuclear Power Reactor	Higashi Dori-1	Japan	256 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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