M 4.7 in Japan from 16 May 2008 23:48 UTC to 23:48

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: 4.7M
Depth: 17 Km
Lat/Lon: 36.46 , 141.45
Event Date: 16 May 2008 23:48 UTC
17 May 2008 08:48 Local
Exposed Population:
1620000 people within 100km
Source: GEOFON
Inserted at: 17 May 2008 07:42 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
GEOFON 0.5 0.5
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
39519 0.5 16 May 2008 23:48 4.2M, 30km N/A 1.8 million (in 100km) 00:08 JMA
39520 0.5 16 May 2008 23:48 4.6M, 56km N/A 4.7 million (in 100km) 00:18 GEOFON
39521 0.5 16 May 2008 23:48 4.5M, 37.1km N/A 1.7 million (in 100km) 02:03 NEIC
39531 0.5 16 May 2008 23:48 4.7M, 17km N/A 1.6 million (in 100km) 07:54 GEOFON
39535 0.5 16 May 2008 23:48 4.5M, 33km N/A 1.6 million (in 100km) 08:28 EMSC
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 Tohoku (population 9,984,608) . The nearest places are Hama, and Mito.

Radius Population
100 km 1.6 million people
75 km 260000 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
Tohoku Japan 10 million people
Kanto Japan 38.5 million people
Chubu Japan 5.2 million people
Kinki Japan 22.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Hama Ibaraki Japan Village - 70 km
Mito Ibaraki Japan Major city 240000 people 98 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
Hyakuri 32 Mil. Paved Yes 8800 98 km

Ports

Name LOCODE Country Distance
Onahama JPONA Japan 72 km
Hitachi JPHTC Japan 74 km
Kashima JPKSM Japan 92 km
Choshi JPCHO Japan 98 km

Dams

Reservoir Dam Name River Year Distance
Mizunuma Mizunuma Hanazonokawa 1966 82 km
Shitokiko Shitoki Shitokigawa 1983 82 km
Takashibako Takashiba Samekawa 1961 85 km
Jajanboike Kozogawa Kozogawa 1985 95 km

Nuclear plants

Name Country Reactors Distance
TOKAI JAPAN 3 75 km

More information

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