M 5.5 in Japan on 18 Mar 2007 01:25 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.

Updated: this report is based on episode 1.

Earthquake Magnitude: 5.5M
Depth: Km
Lat/Lon: 42.2485 , 143.944
Event Date: 18 Mar 2007 01:25 UTC
18 Mar 2007 11:25 Local
Exposed Population:
610000 people within 100km
Source: NEIC
Inserted at: 19 Mar 2007 16:10 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 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
25494 0.5 18 Mar 2007 01:25 5.6M, 35km N/A 710 thousand (in 100km) 01:22 NEIC
25501 0.5 18 Mar 2007 01:25 5.6M, 40km N/A 440 thousand (in 100km) 09:39 EMSC
25517 0.5 18 Mar 2007 01:25 5.5M, 35km N/A 610 thousand (in 100km) 1d 14:45 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 Hokkaido (population 5,808,054) . The nearest places are Aiboshima, Otsu, Kami-notsuka, Hiroo, Oikamanae, Toyoni, Asshinai, Onitoppu, Taiki, Churui, and Shiranuka.

Radius Population
100 km 530000 people
75 km 46000 people
50 km 5400 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Hokkaido Japan 5.8 million people
Sakhalinskaya oblast' Russian Federation 730000 people
Tohoku Japan 10 million people

Affected populated places

Name Region Province Country City class Population Distance
Aiboshima Hokkaido Japan Village - 43 km
Otsu Hokkaido Japan Village - 46 km
Kami-notsuka Hokkaido Japan Village - 48 km
Hiroo Hokkaido Japan Village - 50 km
Oikamanae Hokkaido Japan Village - 52 km
Toyoni Hokkaido Japan Village - 52 km
Asshinai Hokkaido Japan Village - 53 km
Onitoppu Hokkaido Japan Village - 54 km
Taiki Hokkaido Japan Village - 56 km
Churui Hokkaido Japan Village - 57 km
Urahoro Hokkaido Japan Village - 57 km
Ushishubetsu Hokkaido Japan Village - 59 km
Shimo-noyaushi Hokkaido Japan Village - 62 km
Okawa Hokkaido Japan Village - 62 km
Ombetsu Hokkaido Japan Village - 62 km
Kami-toyoni Hokkaido Japan Village - 63 km
Komahata Hokkaido Japan Village - 63 km
Chipira Hokkaido Japan Village - 63 km
Naka-tokomuro Hokkaido Japan Village - 63 km
Shakubetsu Hokkaido Japan Village - 64 km
Oda Hokkaido Japan Village - 64 km
Kami-noyaushi Hokkaido Japan Village - 67 km
Rushin Hokkaido Japan Village - 69 km
Panke Hokkaido Japan Village - 69 km
Moiwa Hokkaido Japan Village - 70 km
Shiranuka Hokkaido Japan City - 70 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
Obihiro OBO 149 Civ. Paved Yes 8200 73 km
Kushiro KUH 95 Civ. Paved Yes 7500 82 km
Tokachi 84 Civ. Paved Yes 4900 88 km

Ports

Name LOCODE Country Distance
Otsu JPOTU Japan 46 km
Tokachi JPTOK Japan 50 km
Kushiro JPKUH Japan 80 km
Samani JPSAM Japan 86 km

Dams

Reservoir Dam Name River Year Distance
Horomanko Horomangawadaisan Horomangawa 1954 73 km
Samaniko Samani Samanigawa 1974 81 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 95 km

More information

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