Overall Green Earthquake alert in Japan on 04 Apr 2020 03:55 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 4.8 in Japan on 04 Apr 2020 03:55 UTC

Hazard models

EQ parameters

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:	4.8M
Depth:	77.09 Km
Lat/Lon:	28.633 , 129.2715
Event Date:	04 Apr 2020 03:55 UTC 04 Apr 2020 12:55 Local
Exposed Population:	About 84000 people within 100km
Source:	NEIC us70008nc1
Inserted at:	04 Apr 2020 04:12 UTC
INFORM Coping capacity of the alert score	1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us70008nc1	Scaled population (vector)	5.08
	C1 earthquake	0.73
	C2 earthquake	-0.22
	Country Vulnerability	-0.71
	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
1303933		0	04 Apr 2020 03:55	4.8M, 77.09km	N/A	80 thousand (in 100km)		00:16	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 Kyushu (population 13,296,000) . The nearest places are Naon, Onkachi, Yamato, Imasato, Ashikebu, Akina, Nakachi, Naze, Daikuma, Uken, and Ikechi.

Radius	Population
100 km	84000 people
75 km	69000 people
50 km	56000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Kyushu	Japan	13.3 million people
Okinawa	Japan	1.2 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Naon	Okinawa	Japan	Village	-	32 km
Onkachi	Okinawa	Japan	Village	-	33 km
Yamato	Okinawa	Japan	Village	-	34 km
Imasato	Okinawa	Japan	Village	-	35 km
Ashikebu	Okinawa	Japan	Village	-	35 km
Akina	Okinawa	Japan	Village	-	35 km
Nakachi	Okinawa	Japan	Village	-	36 km
Naze	Okinawa	Japan	Village	41000 people	36 km
Daikuma	Okinawa	Japan	Village	-	37 km
Uken	Okinawa	Japan	Village	-	38 km
Ashiken	Okinawa	Japan	Village	-	38 km
Tatsugo	Okinawa	Japan	Village	-	38 km
Sekirubu	Okinawa	Japan	Village	-	39 km
Yuwan	Okinawa	Japan	Village	-	39 km
Sennai	Okinawa	Japan	Village	-	39 km
Asato	Okinawa	Japan	Village	-	40 km
Okachi	Okinawa	Japan	Village	-	40 km
Gusuku	Okinawa	Japan	Village	-	40 km
Misato	Okinawa	Japan	Village	-	42 km
Takumo	Okinawa	Japan	Village	-	42 km
Tokuchi	Okinawa	Japan	Village	-	42 km
Wase	Okinawa	Japan	Village	-	42 km
Heda	Okinawa	Japan	Village	-	43 km
Nishi-Nakama	Okinawa	Japan	Village	-	43 km
Sakiharu	Okinawa	Japan	Village	-	43 km
Akaogi	Okinawa	Japan	Village	-	44 km
Kominato	Okinawa	Japan	Village	-	44 km
Kuji	Okinawa	Japan	Village	-	44 km
Kudadon	Okinawa	Japan	Village	-	45 km
Akagina	Okinawa	Japan	Village	-	45 km
Niimura	Okinawa	Japan	Village	-	45 km
Taira	Okinawa	Japan	Village	-	46 km
Amurogama	Okinawa	Japan	Village	-	46 km
Sakibaru	Okinawa	Japan	Village	-	47 km
Setta	Okinawa	Japan	Village	-	47 km
Usuku	Okinawa	Japan	Village	-	47 km
Manya	Okinawa	Japan	Village	-	48 km
Kasari	Okinawa	Japan	Village	-	48 km
Nakazato	Okinawa	Japan	Village	-	49 km
Yui	Okinawa	Japan	Village	-	50 km
Aoku	Okinawa	Japan	Village	-	50 km
Satsukawa	Okinawa	Japan	Village	-	51 km
Katsuura	Okinawa	Japan	Village	-	51 km
Katoku	Okinawa	Japan	Village	-	51 km
Saneku	Okinawa	Japan	Village	-	51 km
Setsuko	Okinawa	Japan	Village	-	53 km
Adachi	Okinawa	Japan	Village	-	54 km
Kaniya	Okinawa	Japan	Village	-	54 km
Hyo	Okinawa	Japan	Village	-	55 km
Sukomo	Okinawa	Japan	Village	-	55 km
Sakari	Okinawa	Japan	Village	-	56 km
Oshikaku	Okinawa	Japan	Village	-	58 km
Osai	Okinawa	Japan	Village	-	58 km
Ikenma	Okinawa	Japan	Village	-	60 km
Shodon	Okinawa	Japan	Village	-	60 km
Akitoku	Okinawa	Japan	Village	-	60 km
Tokuhama	Okinawa	Japan	Village	-	62 km
Yoro	Okinawa	Japan	Village	-	66 km
Ukearnuro	Okinawa	Japan	Village	-	67 km
Ikechi	Okinawa	Japan	Village	-	67 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
Amami O Shima	ASJ	8	Civ.	Paved	Yes	6500	49 km
Kikai		6	Civ.	Paved	Yes	3900	74 km
Tokunoshima	TKN	5	Civ.	Paved	Yes	6500	96 km

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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