M 4.6 in Japan on 27 Jul 2014 18:09 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: 65.56 Km
Lat/Lon: 35.5 , 140.6
Event Date: 27 Jul 2014 18:09 UTC
28 Jul 2014 03:09 Local
Exposed Population:
25455596 people within 100km
Source: NEIC
Inserted at: 27 Jul 2014 18:30 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1056212 0 27 Jul 2014 18:09 4.6M, 65.56km N/A 25.5 million (in 100km) 00:21 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 Kanto (population 38,543,000) . The nearest places are Chiba, Katakai, and Hasunuma.

Radius Population
100 km 25.5 million people
75 km 8.1 million people
50 km 2.5 million people
20 km 96000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Katakai Chiba Japan City - 14 km
Hasunuma Chiba Japan Village - 15 km
Chiba Chiba Japan Major city 920000 people 45 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
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 35 km
Shimoshizu 30 44 km

Ports

Name LOCODE Country Distance
Choshi JPCHO Japan 33 km
Goi JPGOI Japan 45 km
Kashima JPKSM Japan 45 km
Chiba JPCHB Japan 46 km
Anegasaki JPANE Japan 47 km
Katsuura Ko Japan 49 km

Dams

Reservoir Dam Name River Year Distance
Yamakura Yamakura Yamakuragawa 1964 43 km
Takatakiko Takataki Yorogawa 1990 44 km

More information

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