Overall Green Earthquake alert in Japan on 17 Apr 2024 14:14 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 6.3 in Japan on 17 Apr 2024 14:14 UTC

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 (Shakemap)		Tsunami		GDACS score
NEIC	0.4		0		0.4
us7000mcpi	Scaled population (raster)	4.42	Max wave alert	0m
	C1 shakemap	-0.59	Max wave realtime	0m
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.57

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1565505		0.4	17 Apr 2024 14:14	6.3M, 25.7km	7.85	110 thousand (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.

Exposed population

The earthquake happened in Japan , Region of Shikoku (population 84,824) . The nearest places are Oshima, Tsunoura, Okohama, Harigi, Tsurunohama, Ajiro, Nakaura, Takayama, Uwajima, Kashiwa, and Matsuyama.

Radius	Population
100 km	2.2 million people
75 km	990000 people
50 km	330000 people
20 km	73000 people
10 km	2800 people
5 km	<1000 people
2 km	no people

Affected Provinces

Region Province	Country	Population
Shikoku	Japan	85000 people

Affected populated places

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
Iganoue	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
Shitama	Ehime	Japan	Village	-	29 km
Zyohen	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
Ryoke	Ehime	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
Machimura	Ehime	Japan	Village	-	58 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
Nakayama	Ehime	Japan	Village	-	61 km
Shimoda	Kochi	Japan	Village	-	61 km
Tsurusaki	Oita	Japan	City	-	61 km
Simo-Kawaguti	Kochi	Japan	Village	-	61 km
Okegoya	Ehime	Japan	Village	-	62 km
Kami-nada	Ehime	Japan	Village	-	62 km
Maruichibi	Oita	Japan	Village	-	63 km
Oreai	Kochi	Japan	Village	-	64 km
Aoshima	Ehime	Japan	Village	-	64 km
Shinden	Kochi	Japan	Village	-	64 km
Misaki	Kochi	Japan	Village	-	65 km
Nada	Kochi	Japan	Village	-	66 km
Kami-ochidani	Oita	Japan	Village	-	66 km
Kiji	Ehime	Japan	Village	-	67 km
Saga	Kochi	Japan	Village	-	68 km
Tosa-Shimizu	Kochi	Japan	Village	-	68 km
Oku-kureji	Kochi	Japan	Village	-	69 km
Naka-hetsugi	Oita	Japan	Village	-	70 km
Kubokawa	Kochi	Japan	Village	-	70 km
Oita	Oita	Japan	Major city	420000 people	73 km
Matsuyama	Ehime	Japan	Major city	480000 people	83 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
Oita	OIT	6	Civ.	Paved	Yes	9800	70 km
Matsuyama	MYJ	6	Civ.	Paved	Yes	8200	79 km
Beppu	BPU	unknown				0	83 km

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
Tosa-Shimizu		Japan	64 km
Saga		Japan	66 km
Shimizu		Japan	68 km
Iyo		Japan	70 km
Oita	JPOIT	Japan	73 km
Beppu	JPBPU	Japan	74 km
Kitsuki		Japan	75 km
Matsuyama	JPMYJ	Japan	83 km
Tabuka		Japan	84 km
Hiji		Japan	85 km
Susaki	JPSUZ	Japan	87 km
Hirao	JPHRA	Japan	89 km
Nobeoka	JPNOB	Japan	91 km
Hikari	JPHKR	Japan	97 km
Totoro		Japan	97 km
Hojo		Japan	98 km

Dams

Reservoir	Dam Name	River	Year	Distance
Asagiriko	Nomura	Hijigawa	1981	31 km
Kanogawako	Kanogawa	Hijikawa	1958	42 km
Ishiba	Ishiba	Mietanigawa	1973	71 km
Sagiriko	Odo	Niiyodogawa	1986	80 km
Aki	Aki	Akigawa	1971	81 km
Kitagawa	Kitagawa	Kitagawa	1962	83 km
Omogo	Omogo	Wariishikawa	1965	86 km
Serikawa	Serikawa	Serigawa	1956	88 km
Shirasagiko	Ishitegawa	Ishitegawa	1972	90 km
Hisashi	Hisashi	Yamakuragawa	1969	94 km
Omorigawachosuichi	Omorigawa	Omorigawa	1959	100 km

Nuclear power plants

Site	Type	Name	Country
Site-Ikata	Nuclear Power Plant	Ikata-3	Japan

More information

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

Disclaimer
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