Overall Green Earthquake alert in Japan on 12 Dec 2025 02:44 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 6.7 in Japan on 12 Dec 2025 02:44 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:	6.7M
Depth:	10.7 Km
Event Date:	12 Dec 2025 02:44 UTC 12 Dec 2025 12:44 Local
Exposed Population:	160 thousand in MMI V
Source:	NEIC us6000ruc4
Inserted at:	12 Dec 2025 03:03 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
us6000ruc4	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

Maximum expected impact using different data sources.

Click on images to zoom it.

Download Tsunami Travel Time:

Episode Timeline

ID	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1676822	0.1	12 Dec 2025 02:44	6.7M, 16km	4.02	5 thousand (in 100km)	0.2m (at 00:37)	00:10	PTWC
1676823	0.1	12 Dec 2025 02:44	6.7M, 16km	4.02	5 thousand (in 100km)	0.2m (at 00:37)	00:12	NTWC
1676826	0.2	12 Dec 2025 02:44	6.7M, 10.7km	5.02	N/A (in MMI>=VII)	0.2m (at 00:22)	00:19	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.

Tsunami affected locations

The maximum Wave height is 0.2m in Tomari, Japan. This height is estimated for 12-Dec-2025 03:06:21.

Level	Date (UTC)	Name	Country	Wave height (m)
	12-Dec-2025 03:06:21	Tomari	Japan	0.2
	12-Dec-2025 03:09:03	Sarugamori	Japan	0.2
	12-Dec-2025 03:06:87	Shikkari	Japan	0.2
	12-Dec-2025 03:06:87	Shiriya	Japan	0.2
	12-Dec-2025 03:07:87	Kodanosawa	Japan	0.2
	12-Dec-2025 03:10:43	Takahoko	Japan	0.2
	12-Dec-2025 03:10:43	Hiranuma	Japan	0.2
	12-Dec-2025 03:10:43	Shinaya	Japan	0.2
	12-Dec-2025 03:10:43	Rokkasho	Japan	0.2
	12-Dec-2025 03:10:43	Ichiyanagi	Japan	0.2
	12-Dec-2025 03:20:34	Hachinohe	Japan	0.2
	12-Dec-2025 03:20:34	Shirahama	Japan	0.2
	12-Dec-2025 03:20:34	Hashimukai	Japan	0.2
	12-Dec-2025 03:21:71	Hararo	Japan	0.2
	12-Dec-2025 03:18:12	Tanesashi	Japan	0.2
	12-Dec-2025 03:21:71	Kawaguchi	Japan	0.2
	12-Dec-2025 03:21:71	Ichikawa	Japan	0.2
	12-Dec-2025 03:21:47	Futakawame	Japan	0.2
	12-Dec-2025 03:21:47	Hitokawame	Japan	0.2
	12-Dec-2025 03:19:31	Mikawame	Japan	0.2
	12-Dec-2025 03:23:16	Yokawame	Japan	0.2
	12-Dec-2025 03:23:16	Omisawa	Japan	0.2
	12-Dec-2025 03:54:19	Ommaehama	Japan	0.2
	12-Dec-2025 03:54:19	Izushima	Japan	0.2
	12-Dec-2025 03:54:19	Terama	Japan	0.2
	12-Dec-2025 03:14:83	Kurauchi	Japan	0.1
	12-Dec-2025 03:14:83	Sunagamori	Japan	0.1
	12-Dec-2025 03:14:83	Shiogama	Japan	0.1
	12-Dec-2025 03:14:83	Origasa	Japan	0.1
	12-Dec-2025 03:14:83	Mukawame	Japan	0.1
	12-Dec-2025 03:17:99	Sabishiro	Japan	0.1
	12-Dec-2025 03:55:27	Samenoura	Japan	0.1
	12-Dec-2025 03:55:27	Yoriiso	Japan	0.1
	12-Dec-2025 03:08:91	Dedo	Japan	0.1
	12-Dec-2025 03:08:51	Oibegawa	Japan	0.1
	12-Dec-2025 03:18:63	Okuki	Japan	0.1
	12-Dec-2025 03:18:63	Kanahama	Japan	0.1
	12-Dec-2025 03:56:96	Tomari	Japan	0.1
	12-Dec-2025 03:22:46	Shimoburo	Japan	0.1
	12-Dec-2025 03:23:16	Ohata	Japan	0.1
	12-Dec-2025 03:10:43	Amagamori	Japan	0.1
	12-Dec-2025 03:16:87	Uwano	Japan	0.1
	12-Dec-2025 03:16:87	Okkoshi	Japan	0.1
	12-Dec-2025 03:16:87	Denkiani	Japan	0.1
	12-Dec-2025 03:16:87	Kadonohama	Japan	0.1
	12-Dec-2025 03:16:87	Kawajiri	Japan	0.1
	12-Dec-2025 03:36:75	Ishisaki	Japan	0.1
	12-Dec-2025 03:36:75	Toi	Japan	0.1
	12-Dec-2025 03:52:17	Ogatsu	Japan	0.1
	12-Dec-2025 03:52:17	Funagoshi	Japan	0.1
	12-Dec-2025 03:52:17	Tatsuhama	Japan	0.1
	12-Dec-2025 03:52:17	Ohama	Japan	0.1
	12-Dec-2025 03:52:17	Kumazawa	Japan	0.1
	12-Dec-2025 03:52:17	Osu	Japan	0.1
	12-Dec-2025 04:36:78	Shimo-Masuda	Japan	0.1
	12-Dec-2025 04:36:78	Fujitsuka	Japan	0.1
	12-Dec-2025 04:36:78	Ido	Japan	0.1
	12-Dec-2025 04:36:78	Fukanuma	Japan	0.1
	12-Dec-2025 03:12:26	Kita-Samuraihama	Japan	0.1
	12-Dec-2025 03:12:26	Shiromae	Japan	0.1
	12-Dec-2025 03:20:34	Horoizumi	Japan	0.1
	12-Dec-2025 03:28:69		Shimokita	0.1
	12-Dec-2025 03:25:55	Sekine	Japan	0.1
	12-Dec-2025 03:52:22	Kuwahama	Japan	0.1
	12-Dec-2025 04:35:14	Shinhama	Japan	0.1
	12-Dec-2025 04:36:59	Ainokama	Japan	0.1
	12-Dec-2025 04:36:59	Kita-Kama	Japan	0.1
	12-Dec-2025 04:37:54	Sangenchaya	Japan	0.1
	12-Dec-2025 04:37:54	Arahama	Japan	0.1
	12-Dec-2025 04:37:54	Kabasaki	Japan	0.1
	12-Dec-2025 04:37:54	Ninokura	Japan	0.1
	12-Dec-2025 03:19:73	Erimo	Japan	0.1
	12-Dec-2025 03:49:35	Yunokawa	Japan	0.1
	12-Dec-2025 04:00:04	Ayukawahama	Japan	0.1
	12-Dec-2025 04:00:04		Ayukawa	0.1
	12-Dec-2025 04:02:44	Nitoda	Japan	0.1
	12-Dec-2025 04:02:44	Kukunari	Japan	0.1
	12-Dec-2025 04:36:22	Kaikomba	Japan	0.1
	12-Dec-2025 03:17:72	Todohokke	Japan	0.1
	12-Dec-2025 03:24:14	Ikokuma	Japan	0.1
	12-Dec-2025 03:59:55	Ikenohama	Japan	0.1
	12-Dec-2025 03:59:55	Aji	Japan	0.1
	12-Dec-2025 03:59:55	Futawatashi	Japan	0.1
	12-Dec-2025 03:59:55	Oshika	Japan	0.1
	12-Dec-2025 03:59:55		Miyagi-Chubu-Oki (Central Miyagi) GPS Buoy	0.1
	12-Dec-2025 03:11:18	Uge	Japan	0.1
	12-Dec-2025 03:14:07	Kawasiri	Japan	0.1
	12-Dec-2025 03:14:07	Okubo	Japan	0.1
	12-Dec-2025 03:14:07	Tamagawa	Japan	0.1
	12-Dec-2025 03:21:77	Netanai	Japan	0.1
	12-Dec-2025 03:26:36	Onitoppu	Japan	0.1
	12-Dec-2025 04:02:24	Niiyama	Japan	0.1
	12-Dec-2025 04:27:85	Tsukihama	Japan	0.1
	12-Dec-2025 04:40:24	Wada-Shinden	Japan	0.1
	12-Dec-2025 04:40:24	Gamo	Japan	0.1
	12-Dec-2025 04:37:54	Kasano	Japan	0.1
	12-Dec-2025 04:38:18	Hanagama	Japan	0.1
	12-Dec-2025 03:11:18	Honnami	Japan	0.1
	12-Dec-2025 03:11:94	Minami-Samuraihama	Japan	0.1
	12-Dec-2025 03:14:07	Taneichi	Japan	0.1
	12-Dec-2025 03:12:26	Minato	Japan	0.1
	12-Dec-2025 03:17:72	Kurambetsu	Japan	0.1
	12-Dec-2025 03:32:46	Ishihama	Japan	0.1
	12-Dec-2025 03:37:99	Sukuiso	Japan	0.1
	12-Dec-2025 03:37:99	Oura	Japan	0.1
	12-Dec-2025 03:28:69	Oma	Japan	0.1
	12-Dec-2025 03:48:36	Unozumai	Japan	0.1
	12-Dec-2025 03:48:36	Kamaishi	Japan	0.1
	12-Dec-2025 03:48:36	Ryoishi	Japan	0.1
	12-Dec-2025 03:48:36	Hakozaki	Japan	0.1
	12-Dec-2025 03:40:75	Kami-Heida	Japan	0.1
	12-Dec-2025 03:40:75	Heida	Japan	0.1
	12-Dec-2025 03:40:75	Shirahama	Japan	0.1
	12-Dec-2025 03:40:75		Iwate-Nanbu-Oki (South Iwate) GPS buoy	0.1
	12-Dec-2025 03:29:86	Kumadomari	Japan	0.1
	12-Dec-2025 03:31:85	Muroran	Japan	0.1
	12-Dec-2025 03:40:54	Okkirai	Japan	0.1
	12-Dec-2025 03:40:54	Urahama	Japan	0.1
	12-Dec-2025 03:40:54	Oishi	Japan	0.1
	12-Dec-2025 04:04:96	Tsukihama	Japan	0.1
	12-Dec-2025 04:03:63	Onagawahama	Japan	0.1
	12-Dec-2025 04:05:07	Odomari	Japan	0.1
	12-Dec-2025 04:05:07	Kobuchi	Japan	0.1
	12-Dec-2025 04:05:07	Oharahama	Japan	0.1
	12-Dec-2025 03:39:59	Yagi	Japan	0.1
	12-Dec-2025 03:15:47	Kiriushi	Japan	0.1
	12-Dec-2025 03:15:47	Shimanokoshi	Japan	0.1
	12-Dec-2025 03:15:47	Shimanokoe	Japan	0.1
	12-Dec-2025 03:17:99	Nei	Japan	0.1
	12-Dec-2025 03:17:99	Noda	Japan	0.1
	12-Dec-2025 03:17:99	Tamagawa	Japan	0.1
	12-Dec-2025 03:17:99	Kuki	Japan	0.1
	12-Dec-2025 03:17:99	Noda-Tamagawa	Japan	0.1
	12-Dec-2025 03:24:14	Chipira	Japan	0.1
	12-Dec-2025 03:46:98	Yukawa	Japan	0.1

See full locations list (RSS)

Initial conditions

Title: ""114 km ENE of Hachinohe""

Fault parameters

Latitude: 40.918
Longitude: 142.745
Length: 35 km
Width: 9 km
Magnitude: 6.7 M

Okada parameters:

Slip: 1 m
Strike: 202 (geogr angle: north=0, south=180)
Dip: 21 degree
Rake: 90 degree
Depth: 11 km

Calculation parameters

Calculation space (lon/lat): 139.745, 37.918, 145.745, 43.918
Instead of Step -> use Cell size:.5 minutes

Sea Level

More information

Timeline:
Tsunami calculations performed to this case, click here
Montecarlo:
Tsunami Montecarlo simulation performed to this case, click here

Populated places affected by tsunami:
https://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2025/12/36120/locations.xml
Populated places affected by tsunami (KML):
https://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2025/12/36120/locations.kml

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

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