Overall Green Earthquake alert in Ryukyu Islands, Japan on 21 Jun 2022 14:53 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 Ryukyu Islands, Japan on 21 Jun 2022 14:53 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:	4.8M
Depth:	10 Km
Lat/Lon:	26.8036 , 126.3831
Event Date:	21 Jun 2022 14:53 UTC 21 Jun 2022 22:53 Local
Exposed Population:	10 thousand in 100km
Source:	NEIC us7000hj08
Inserted at:	21 Jun 2022 15:28 UTC
INFORM Coping capacity of the alert score	1.1 ()

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Rapid Impact)		GDACS score
NEIC	0		0
us7000hj08	Scaled population (vector)	0
	C1 rapid impact	-0.59
	C2 rapid impact	0.53
	Country Vulnerability	0
	INFORM_normalised	1

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1449754		0	21 Jun 2022 14:53	4.8M, 10km	3.27	10 thousand (in 100km)		00:34	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 off shore.

Radius	Population
100 km	9900 people
75 km	8400 people
50 km	<1000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Ohara	Okinawa	Japan	Village	-	60 km
Nakachi	Okinawa	Japan	Village	-	60 km
Nishime	Okinawa	Japan	Village	-	61 km
Nakadomari	Okinawa	Japan	Village	-	61 km
Gima	Okinawa	Japan	Village	-	64 km
Maja	Okinawa	Japan	Village	-	65 km
Tomari	Okinawa	Japan	Village	-	66 km
Fuija	Okinawa	Japan	Village	-	66 km
Shimajiri	Okinawa	Japan	Village	-	70 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
Kumejima	UEO	7	Civ.	Paved	Yes	6500	59 km

Ports

Name	LOCODE	Country	Distance
Kume Island		Japan	59 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.
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