M 4.6 in Japan on 05 Mar 2021 06:14 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: 64.41 Km
Lat/Lon: 42.0397 , 142.4629
Event Date: 05 Mar 2021 06:14 UTC
05 Mar 2021 15:14 Local
Exposed Population:
240000 people within 100km
Source: NEIC us7000dfvm
Inserted at: 05 Mar 2021 06:32 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000dfvm Scaled population (vector) 5.13  
  C1 earthquake 0.73  
  C2 earthquake -0.22  
  Country Vulnerability -0.71  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1362396 0 05 Mar 2021 06:14 4.6M, 64.41km N/A 250 thousand (in 100km) 00:18 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 Ogifushi, Kerimabu, Urakawa, Utabue, Higashi-shizunai, Shizunai, Nishicha, Niikappu, Samani, Sariwarabe, and Chipira.

Radius Population
100 km 250000 people
75 km 80000 people
50 km 51000 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

Affected populated places

Name Region Province Country City class Population Distance
Ogifushi Hokkaido Japan Village - 25 km
Kerimabu Hokkaido Japan Village - 27 km
Urakawa Hokkaido Japan Village - 29 km
Utabue Hokkaido Japan Village - 32 km
Higashi-shizunai Hokkaido Japan Village - 32 km
Shizunai Hokkaido Japan Village 22000 people 34 km
Nishicha Hokkaido Japan Village - 35 km
Niikappu Hokkaido Japan Village - 38 km
Samani Hokkaido Japan Village - 38 km
Sariwarabe Hokkaido Japan Village - 40 km
Ichibu Hokkaido Japan Village - 43 km
Kami mitsuishi Hokkaido Japan Village - 44 km
Atsugacho Hokkaido Japan Village - 45 km
Kurambetsu Hokkaido Japan Village - 48 km
Panke Hokkaido Japan Village - 55 km
Showa Hokkaido Japan Village - 57 km
Horoizumi Hokkaido Japan Village - 57 km
Mombetsu Hokkaido Japan Village - 58 km
Kawamukai Hokkaido Japan Village - 64 km
Sarufuto Hokkaido Japan Village - 65 km
Erimo Hokkaido Japan Village - 65 km
Chipira Hokkaido Japan Village - 67 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 99 km

Ports

Name LOCODE Country Distance
Samani JPSAM Japan 39 km
Tokachi JPTOK Japan 74 km
Tomakomai JPTMK Japan 96 km

Dams

Reservoir Dam Name River Year Distance
Shizunaichoseichi Shizunai Shizunaigawa 1966 43 km
Mitsuishi Mitsuishi Mitsuishigawa 1991 43 km
Samaniko Samani Samanigawa 1974 44 km
Takamiko Takami Shizunaigawa 1983 49 km
Horomanko Horomangawadaisan Horomangawa 1954 51 km
Higashinosawachoseichi Higashinosawa Koikakushushibicharigawa 1987 55 km
Shimonikappu Shimonikappu Nikappugawa 1969 59 km
Niikappu Niikappu Niikappugawa 1974 64 km
Nibutaniko Nibutani Sarugawa n/a 71 km
Poroshiriko Okunikappu Nikappugawa 1963 73 km
Iwachishi Iwachishi Sarugawa 1958 85 km
Azuma Azuma Azumagawa 1969 91 km
Hobetsu Hobetsu Hobetsugawa 1984 97 km

More information

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