M 5.5 in Japan from 29 Sep 2003 14:22 UTC to 14:22

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: 5.5M
Depth: 18 Km
Lat/Lon: 43.1 , 144.2
Event Date: 29 Sep 2003 14:22 UTC
Exposed Population:
750000 people within 100km
Source: EMSC
Inserted at: 29 Sep 2003 18:30 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 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
4146 0.5 29 Sep 2003 14:22 5.5M, 18km N/A 750 thousand (in 100km) 04:08 EMSC
4153 0.5 29 Sep 2003 14:22 5.1M, 33km N/A 40 thousand (in 100km) 05:39 NEIC
4176 0.5 29 Sep 2003 14:22 5.3M, 0km N/A 2.3 million (in 100km) 20:28 RENASS
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 Hokkaido (population 5,808,054) .

Radius Population
100 km 850000 people
75 km 360000 people
50 km 270000 people
20 km 200000 people
10 km 17000 people
5 km 2900 people
2 km <1000 people

Affected Provinces

Country Region Province Population
Japan Hokkaido 5.8 million people

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
Kushiro KUH 95 Civ. Paved Yes 7500 6 km
Nakashibetsu SHB 65 Civ. Paved Yes 6500 81 km
Memanbetsu MMB 33 Civ. Paved Yes 8200 88 km
Tokachi 84 Civ. Paved Yes 4900 89 km

Ports

Name LOCODE Country Distance
Kushiro JPKUH Japan 18 km
Akkeshi JPAKE Japan 53 km

More information

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