M 4.5 in Japan on 10 Jan 2021 06:38 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: 4.5M
Depth: 46.68 Km
Lat/Lon: 37.7534 , 141.7386
Event Date: 10 Jan 2021 06:38 UTC
10 Jan 2021 15:38 Local
Exposed Population:
1620000 people within 100km
Source: NEIC us6000d75y
Inserted at: 10 Jan 2021 07:54 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
us6000d75y Scaled population (vector) 5.32  
  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
1352135 0 10 Jan 2021 06:38 4.5M, 46.68km N/A 1.6 million (in 100km) 01:16 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 Tohoku (population 9,984,608) . The nearest places are Futawatashi, Aji, Ikenohama, Oshika, Ayukawahama, Minami-Ibi, Kayahama, Kukunari, Niiyama, Isobe, and Sendai.

Radius Population
100 km 1.6 million people
75 km 120000 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
Hokkaido Japan 5.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Futawatashi Miyagi Japan Village - 60 km
Aji Miyagi Japan Village - 61 km
Ikenohama Miyagi Japan Village - 63 km
Oshika Miyagi Japan Village - 63 km
Ayukawahama Miyagi Japan Village - 64 km
Minami-Ibi Fukushima Japan Village - 64 km
Kayahama Fukushima Japan Village - 65 km
Kukunari Miyagi Japan Village - 65 km
Niiyama Miyagi Japan Village - 65 km
Isobe Fukushima Japan Village - 66 km
Oharahama Miyagi Japan Village - 67 km
Takahira Fukushima Japan Village - 67 km
Nitoda Miyagi Japan Village - 67 km
Kobuchi Miyagi Japan Village - 67 km
Odomari Miyagi Japan Village - 67 km
Umekawa Fukushima Japan Village - 68 km
Onaba Fukushima Japan Village - 68 km
Kashima Fukushima Japan Village - 68 km
Haragama Fukushima Japan Village - 69 km
Odaka Fukushima Japan Village - 69 km
Kiyohashi Fukushima Japan Village - 70 km
Tomari Miyagi Japan Village - 70 km
Tachiya Fukushima Japan Village - 70 km
Sendai Miyagi Japan Major city 1 million people 93 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
Sendai SDJ 5 Civ. Paved Yes 9800 84 km
Matsushima 2 Civ. Paved Yes 8800 86 km
Kasuminome 5 0 89 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 69 km
Onagawa JPONG Japan 80 km
Ishinomaki JPISM Japan 82 km
Shiogama JPSGM Japan 88 km

Dams

Reservoir Dam Name River Year Distance
Yokokawa Yokokawa Otagawa 1983 76 km
Takanokura Takanokura Mizunashigawa 1975 76 km
Ogaki Ogaki Ukedogawa 1985 80 km
Sakashita Sakashita Okawaragawa 1973 82 km
Tamanotameike Tamano Udagawa 1945 88 km
Tarumizuko Tarumizu Masudagawa 1976 92 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 73 km
ONAGAWA JAPAN 3 75 km
FUKUSHIMA-DAINI JAPAN 4 79 km

More information

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