Overall Green Earthquake alert in Japan on 27 Jul 2018 01:25 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 4.6 in Japan on 27 Jul 2018 01:25 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:	4.6M
Depth:	11.82 Km
Lat/Lon:	26.2594 , 128.899
Event Date:	27 Jul 2018 01:25 UTC 27 Jul 2018 10:25 Local
Exposed Population:	About 85000 people within 100km
Source:	NEIC us2000gewh
Inserted at:	27 Jul 2018 01:45 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
us2000gewh	Scaled population (vector)	3.93
	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
1221455		0	27 Jul 2018 01:25	4.6M, 11.82km	N/A	90 thousand (in 100km)		00:19	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 Okinawa (population 1,242,315) .

Radius	Population
100 km	86000 people
75 km	no people
50 km	no people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

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

Critical infrastructure

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

Ports

Name	LOCODE	Country	Distance
Kin Wan	JPKIN	Japan	94 km
Nakagusuku Wan		Japan	96 km
Oku		Japan	98 km
Heianza	JPHEI	Japan	99 km

Dams

Reservoir	Dam Name	River	Year	Distance
Kannako	Kanna	Kannafukujigawa	1993	98 km
	Okukubi	Okukubigawa	2001	99 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.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.