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 6.3 in Japan on 17 Apr 2024 14:14 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:	6.3M
Depth:	25.7 Km
Lat/Lon:	33.1621 , 132.3871
Event Date:	17 Apr 2024 14:14 UTC 17 Apr 2024 23:14 Local
Exposed Population:	110 thousand (in MMI>=VII)
Source:	NEIC us7000mcpi
Inserted at:	17 Apr 2024 14:32 UTC
INFORM Coping capacity of the alert score:	1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Rapid Impact)		Tsunami		GDACS score
NEIC	0		0		0.4
us7000mcpi	Scaled population (raster)	1.94	Max wave alert	0m
	C1 rapid impact	-0.59	Max wave realtime	0m
	C2 rapid impact	0.53
	Country Vulnerability	0
	INFORM_normalised	0.57

Maximum expected impact using different data sources.

The green area correspond to areas affected by strong shaking (MMI VI or higher) according to the simulation.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1565505		0	17 Apr 2024 14:14	6.3M, 25.7km	6.48	N/A (in MMI>=VII)	0m (at 00:00)	00:17	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.

Rapid Impact

The results presented below are calculated with the ShakeMap open source software (USGS) using only earthquake hypocenter information to provide a rapid estimation of the ground motion and shaking intensity without taking into account any instrumental observations or earthquake source scaling laws.

Exposed population

The earthquake happened in Japan ,of Shikoku (population 4,326,084) . The alertlevel for this event is GREEN

Intensity	Population
	160000 people
	1.1 million people

Affected Provinces

Region Province	Country	Population
Shikoku	Japan	120000 people
Shikoku	Japan	360000 people
Kyushu	Japan	350000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Oshima	Ehime	Japan	Village	-	3 km
Tsunoura	Ehime	Japan	Village	-	6 km
Okohama	Ehime	Japan	Village	-	12 km
Harigi	Ehime	Japan	Village	-	14 km
Tsurunohama	Ehime	Japan	Village	-	14 km
Ajiro	Ehime	Japan	Village	-	15 km
Nakaura	Ehime	Japan	Village	-	16 km
Takayama	Ehime	Japan	Village	-	17 km
Uwajima	Ehime	Japan	City	58000 people	18 km
Kashiwa	Ehime	Japan	Village	-	19 km
Iwabuchi	Ehime	Japan	Village	-	21 km
Yoshida	Ehime	Japan	Village	-	21 km
Noda	Ehime	Japan	Village	-	23 km
Miyanoshita	Ehime	Japan	Village	-	24 km
Tsuburi	Ehime	Japan	Village	-	24 km
Funakoshi	Ehime	Japan	Village	-	27 km
Johen	Ehime	Japan	Village	-	27 km
Izume	Ehime	Japan	Village	-	28 km
Zyohen	Ehime	Japan	Village	-	29 km
Shitama	Ehime	Japan	Village	-	29 km
Fukura	Ehime	Japan	Village	-	31 km
Yoshino	Ehime	Japan	Village	-	32 km
Kawasaki	Ehime	Japan	Village	-	33 km
Natori	Ehime	Japan	Village	-	33 km
Nomura	Ehime	Japan	Village	-	33 km
Yawatahama	Ehime	Japan	Village	31000 people	33 km
Kawanohama	Ehime	Japan	Village	-	33 km
Mitsukue	Ehime	Japan	Village	-	34 km
Hama	Ehime	Japan	Village	-	35 km
Hotojima	Oita	Japan	Village	-	38 km
Tsurumi-zaki	Oita	Japan	Village	-	39 km
Kuchiyanai	Kochi	Japan	Village	-	39 km
Shono	Ehime	Japan	Village	-	39 km
Sukumo	Kochi	Japan	Village	26000 people	41 km
Sakaishi	Ehime	Japan	Village	-	41 km
Izumi	Ehime	Japan	Village	-	42 km
Kami-ono	Ehime	Japan	Village	-	42 km
Fujinokawa	Kochi	Japan	Village	-	43 km
Amamui	Oita	Japan	Village	-	44 km
Deai	Kochi	Japan	Village	-	46 km
Uchiko	Ehime	Japan	Village	-	46 km
Tsuga	Kochi	Japan	Village	-	47 km
Urashiro	Oita	Japan	Village	-	48 km
Hataki	Ehime	Japan	Village	-	48 km
Hiromi	Kochi	Japan	Village	-	48 km
Saganoseki	Oita	Japan	City	-	48 km
Okora	Oita	Japan	Village	-	48 km
Arioka	Kochi	Japan	Village	-	49 km
Uwaura	Oita	Japan	Village	-	49 km
Kashiwajima	Kochi	Japan	Village	-	49 km
Shitagiri	Kochi	Japan	Village	-	49 km
Komame	Kochi	Japan	Village	-	49 km
Ikasaki	Ehime	Japan	Village	-	50 km
Saiki	Oita	Japan	City	48000 people	50 km
Katsura	Oita	Japan	Village	-	51 km
Nagahama	Ehime	Japan	City	-	51 km
Sashioi	Oita	Japan	Village	-	52 km
Sakai	Kochi	Japan	Village	-	52 km
Hirose	Kochi	Japan	Village	-	53 km
Usuki	Oita	Japan	Village	35000 people	54 km
Kamaeura	Oita	Japan	Village	-	54 km
Oyo	Kochi	Japan	Village	-	54 km
Tanono	Kochi	Japan	Village	-	54 km
Nakamura	Kochi	Japan	Village	34000 people	55 km
Sakanoichi	Oita	Japan	Village	-	56 km
Uematsu	Oita	Japan	Village	-	56 km
Ko-saitsuno	Kochi	Japan	Village	-	58 km
Simo-no-kae	Kochi	Japan	Village	-	58 km
Sanezaki	Kochi	Japan	Village	-	59 km
Kamae	Oita	Japan	Village	-	60 km
Irino	Kochi	Japan	Village	-	60 km
Shimoda	Kochi	Japan	Village	-	61 km
Tsurusaki	Oita	Japan	City	-	61 km
Simo-Kawaguti	Kochi	Japan	Village	-	61 km
Naka-hetsugi	Oita	Japan	Village	-	70 km
Oita	Oita	Japan	Major city	420000 people	73 km

see full list

Critical infrastructure

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

Ports

Name	LOCODE	Country	Distance
Uwajima	JPUWA	Japan	17 km
Yawatahama	JPYWH	Japan	33 km
Misaki		Japan	34 km
Kawanoishi		Japan	37 km
Sukumo	JPSUK	Japan	41 km
Saiki Ko		Japan	48 km
Saganoseki	JPSAG	Japan	49 km
Tsukumi	JPTMI	Japan	50 km
Nagahama	JPNGH	Japan	50 km
Usuki	JPUSK	Japan	54 km
Tsurusaki	JPTSK	Japan	63 km
Oita	JPOIT	Japan	73 km

Dams

Intensity	Reservoir	Dam Name	River	Year	Distance
	Asagiriko	Nomura	Hijigawa	1981	31 km
	Kanogawako	Kanogawa	Hijikawa	1958	42 km

Nuclear Facilities

Site	Type	Name	Country	Distance
Site-Ikata	Nuclear Power Plant	Ikata-3	Japan	37 km

More information

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

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
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