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 4.9 in Japan on 12 Jan 2018 09:51 UTC
GDACS Event Report - Earthquake impact

Earthquake event

  • Magnitude: 4.9 M
  • Depth: 35 km (deep)
  • Source: NEIC NEIC us2000cit8
  • Location (latitude/longitude): 30.7407, 131.8162
  • Time (UTC): 12 Jan 2018 09:51:09
  • Time (ECT): 12 Jan 2018 10:51:09
  • INFORM Coping capacity of the alert score: 1.5 (JPN)

Event time line

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlertScore DateMag, DepthMax Intensity (MMI*)Pop [100 km or MMI 9-7]Tsunami risk (max height)Delay (hh:mm) Source
1194042 0

Calculation Episode detail

Reference Id Level Score Type Date Added Population
100km or MMI9-7    
20km or Max MMI    
Max Height(m)
Episode 1194042
0 realtime 2018-01-12 10:13:33 60 thousand 0
  Earthquake 211239
0 realtime 2018-01-12 10:13:33 60 thousand No people affected 0
12 Jan 2018 09:51 4.9M, 35km N/A 60 thousand 00:22 NEIC NEIC

(*) Modified Mercalli Intensity Scale

Earthquake impact details


Population near epicenter
Radius Population
100 km 62000 people
75 km 4300 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

The earthquake happened in Japan , Region of Kyushu (population 13,296,000) .

Affected provinces

Region Province Country Population
Kyushu Japan 13.2 million people
Shikoku Japan 4.3 million people
Chugoku Japan 7.9 million people
Kinki Japan 22.2 million people

Affected Populated Places

See complete places

Critical infrastructure

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

Nearby and affected airports
Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Nishinoomote IIN unknown 0 75 km
Tanegashima TNE 97 Civ. Paved Yes 4900 86 km
Reservoir Dam Name River Year Distance
Saikyo Saikyo Matanobugawa 1984 75 km

More information

Data resources

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About the data


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.