Overall Green Earthquake alert in Japan on 08 Aug 2024 07:42 UTC

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

M 7.1 in Japan on 08 Aug 2024 07:42 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:	7.1M
Depth:	25 Km
Event Date:	08 Aug 2024 07:42 UTC 08 Aug 2024 16:42 Local
Exposed Population:	370 thousand (in MMI>=VII)
Source:	NEIC us6000nith
Inserted at:	08 Aug 2024 08:07 UTC
INFORM Coping capacity of the alert score:	1.5 (Japan)
Maximun Wave Height observed:	0.43 m

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	0.4		0.4		0.4
us6000nith	Scaled population (vector)	4.33	Max wave alert	0.31m
	C1 shakemap	-0.59	Max wave realtime	0.43m
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.57

Maximum expected impact using different data sources.

Click on image to zoom it.

Episode Timeline

ID	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1586987	0.2	08 Aug 2024 07:42	6.9M, 33km	6.52	10 thousand (in 100km)	0.1m (at 00:22)	00:13	PTWC
1586988	0.2	08 Aug 2024 07:42	6.9M, 33km	N/A	10 thousand (in 100km)	0.1m (at 00:22)	00:14	NTWC
1586990	0.6	08 Aug 2024 07:42	7.1M, 8.8km	7.41	950 thousand (in MMI>=VII)	0.5m (at 00:00)	00:15	NEIC
1586993	0.4	08 Aug 2024 07:42	7.1M, 25km	7.22	370 thousand (in MMI>=VII)	0.4m (at 01:05)	00:24	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.

Estimated Tsunami affected locations

The maximum observed wave height is 0.43m in Aburatsu Jp;
The maximum Wave height is 0.3m in Haruguchi, Japan. This height is estimated for 8-Aug-2024 08:47:97.

Alert	Date (UTC)	Name	Country	Wave height (m)
	8-Aug-2024 08:47:97	Haruguchi	Japan	0.3
	8-Aug-2024 08:45:86	Tachibandori	Japan	0.3
	8-Aug-2024 08:57:65	Uwae	Japan	0.2
	8-Aug-2024 07:50:19	Udo	Japan	0.2
	8-Aug-2024 07:51:65	Oryuzako	Japan	0.2
	8-Aug-2024 09:14:92	Sukumo	Japan	0.2
	8-Aug-2024 07:48:91	Aburatsu	Japan	0.2
	8-Aug-2024 07:48:91		Aburatsu	0.2
	8-Aug-2024 08:59:87	Takanabe	Japan	0.2
	8-Aug-2024 07:42:00	Meitsu	Japan	0.2
	8-Aug-2024 09:54:47	Mimitsu	Japan	0.2
	8-Aug-2024 09:54:17	Tsuno	Japan	0.1
	8-Aug-2024 09:13:78	Fukura	Japan	0.1
	8-Aug-2024 10:35:76	Tsurumi-zaki	Japan	0.1
	8-Aug-2024 09:04:74	Honjo	Japan	0.1
	8-Aug-2024 09:04:64	Shibushi	Japan	0.1
	8-Aug-2024 09:39:63	Yanagihara	Japan	0.1
	8-Aug-2024 09:39:63	Guniwa	Japan	0.1
	8-Aug-2024 09:39:63	Anno	Japan	0.1
	8-Aug-2024 09:39:63	Iseki	Japan	0.1
	8-Aug-2024 09:39:63	Shoiiura	Japan	0.1
	8-Aug-2024 10:20:88	Ko-saitsuno	Japan	0.1
	8-Aug-2024 10:20:88	Simo-Kawaguti	Japan	0.1
	8-Aug-2024 10:20:88	Tosa-Shimizu	Japan	0.1
	8-Aug-2024 10:20:88	Tosashimizu	Japan	0.1
	8-Aug-2024 10:20:88		Tosashimizu	0.1
	8-Aug-2024 09:23:67	Igatan	Japan	0.1
	8-Aug-2024 09:39:63	Azako	Japan	0.1
	8-Aug-2024 10:36:85	Shimo-Nishime	Japan	0.1
	8-Aug-2024 10:36:85	Nishino	Japan	0.1
	8-Aug-2024 10:36:85	Shimonaka	Japan	0.1
	8-Aug-2024 10:36:85	Takesaki	Japan	0.1
	8-Aug-2024 10:36:85	Osaki	Japan	0.1
	8-Aug-2024 09:49:93	Takabo	Japan	0.1
	8-Aug-2024 09:49:93	Nishinoomote	Japan	0.1
	8-Aug-2024 09:49:93	Kerisaki	Japan	0.1
	8-Aug-2024 09:49:93	Komakino	Japan	0.1
	8-Aug-2024 09:49:93	Osaki	Japan	0.1
	8-Aug-2024 09:49:93	Yokoyama	Japan	0.1
	8-Aug-2024 10:37:87	Ajiro	Japan	0.1
	8-Aug-2024 10:37:87	Kashiwa	Japan	0.1
	8-Aug-2024 10:07:64	Makigawa	Japan	0.1
	8-Aug-2024 10:07:65	Hamatsuwaki	Japan	0.1
	8-Aug-2024 10:07:65	Takenokawa	Japan	0.1
	8-Aug-2024 10:07:64	Noma	Japan	0.1
	8-Aug-2024 07:42:00	Miyanoura	Japan	0.1
	8-Aug-2024 10:04:23	Taina	Japan	0.1
	8-Aug-2024 09:36:84	Ono	Japan	0.1
	8-Aug-2024 10:20:89	Isa	Japan	0.1
	8-Aug-2024 09:50:07	Kunikami	Japan	0.1
	8-Aug-2024 10:36:64	Hotojima	Japan	0.1
	8-Aug-2024 10:35:76	Amamui	Japan	0.1
	8-Aug-2024 10:07:15	Fukagawa	Japan	0.1
	8-Aug-2024 10:07:64	Mitariyama	Japan	0.1
	8-Aug-2024 09:30:31	Susaki	Japan	0.1
	8-Aug-2024 09:01:25	Nobeoka	Japan	0.1
	8-Aug-2024 09:40:22	Minato	Japan	0.1
	8-Aug-2024 09:50:07	Kunigami	Japan	0.1
	8-Aug-2024 09:49:93	Kurazami	Japan	0.1
	8-Aug-2024 10:41:57	Okora	Japan	0.1
	8-Aug-2024 10:41:57		Saiki	0.1
	8-Aug-2024 09:56:99	Aki	Japan	0.1
	8-Aug-2024 09:57:33	Shitama	Japan	0.1
	8-Aug-2024 09:57:33	Yawatahama	Japan	0.1
	8-Aug-2024 09:26:68	Higashi	Japan	0.1
	8-Aug-2024 10:13:22	Miyanoura	Japan	0.1
	8-Aug-2024 10:12:47	Maruichibi	Japan	0.1
	8-Aug-2024 10:12:47	Kamae	Japan	0.1
	8-Aug-2024 08:52:14	Tachiyama	Japan	0.1
	8-Aug-2024 08:17:43	Funakoshi	Japan	0.1
	8-Aug-2024 08:17:43	Johen	Japan	0.1
	8-Aug-2024 08:17:43	Zyohen	Japan	0.1
	8-Aug-2024 09:49:15	Hayama	Japan	0.1
	8-Aug-2024 09:53:48	Haro	Japan	0.1
	8-Aug-2024 09:53:48	Mugyu	Japan	0.1
	8-Aug-2024 09:52:24	Ambo	Japan	0.1
	8-Aug-2024 09:52:24	Funayuki	Japan	0.1
	8-Aug-2024 10:03:14	Shimoda	Japan	0.1
	8-Aug-2024 09:57:33	Irino	Japan	0.1
	8-Aug-2024 09:57:33	Nada	Japan	0.1
	8-Aug-2024 10:04:31	Yasu	Japan	0.1
	8-Aug-2024 10:04:31	Natori	Japan	0.1
	8-Aug-2024 10:04:31	Kawanohama	Japan	0.1
	8-Aug-2024 10:03:25	Tsuburi	Japan	0.1
	8-Aug-2024 10:07:65	Okohama	Japan	0.1
	8-Aug-2024 08:55:26	Kashiwajima	Japan	0.1
	8-Aug-2024 08:55:26	Komame	Japan	0.1
	8-Aug-2024 10:12:93	Kamaeura	Japan	0.1
	8-Aug-2024 10:34:69	Tomai	Japan	0.1
	8-Aug-2024 09:17:06	Sumiyoshi	Japan	0.1
	8-Aug-2024 09:53:48	Yudomari	Japan	0.1
	8-Aug-2024 09:53:85	Hirauchi	Japan	0.1
	8-Aug-2024 09:53:85	Kojima	Japan	0.1
	8-Aug-2024 09:53:85	Onoaida	Japan	0.1
	8-Aug-2024 09:34:77	Shimama	Japan	0.1
	8-Aug-2024 09:50:38	Sashioi	Japan	0.1
	8-Aug-2024 09:50:38	Uwaura	Japan	0.1

See full locations list (RSS)

Initial conditions

Title: ""M 7.1, 20 km NE of Nichinan, Japan""

Fault parameters

Latitude: 31.719
Longitude: 131.527
Length: 56 km
Width: 15 km
Magnitude: 7.1 M

Okada parameters:

Slip: 1.5 m
Strike: 216 (geogr angle: north=0, south=180)
Dip: 15 degree
Rake: 90 degree
Depth: 25 km

Calculation parameters

Calculation space (lon/lat): 127.027, 27.219, 136.027, 36.219
Instead of Step -> use Cell size:.75 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:
http://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2024/08/35413/locations.xml
Populated places affected by tsunami (KML):
http://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2024/08/35413/locations.kml

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

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