M 4.8 in Japan on 29 Sep 2012 17:37 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: 57.2 Km
Lat/Lon: 35.0133 , 140.027
Event Date: 29 Sep 2012 17:37 UTC
30 Sep 2012 02:37 Local
Exposed Population:
28600000 people within 100km
Source: NEIC usc000cy7d
Inserted at: 29 Sep 2012 18:12 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000cy7d 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
119956 0.5 29 Sep 2012 17:37 4.8M, 57.2km N/A 28.6 million (in 100km) 00:35 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 Yokohama, Chiba, Kawasaki, and Wada.

Radius Population
100 km 28.7 million people
75 km 9.8 million people
50 km 1.2 million people
20 km 140000 people
10 km 31000 people
5 km 7000 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
Wada Chiba Japan Village - 3 km
Yokohama Kanagawa Japan Major city 3.6 million people 62 km
Kawasaki Kanagawa Japan Major city 1.3 million people 64 km
Chiba Chiba Japan Major city 920000 people 66 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
Tateyama 3 18 km
Kisarazu 3 Mil. Paved Yes 6000 44 km

Ports

Name LOCODE Country Distance
Tateyama JPTTY Japan 16 km
Katsuura Ko Japan 28 km

Dams

Reservoir Dam Name River Year Distance
Sakuma Sakuma Okuzuregawa 1990 17 km

More information

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