M 4.5 in Japan on 17 Jul 2020 04:49 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: 50.38 Km
Lat/Lon: 37.5335 , 141.7454
Event Date: 17 Jul 2020 04:49 UTC
17 Jul 2020 13:49 Local
Exposed Population:
480000 people within 100km
Source: NEIC us7000aq5d
Inserted at: 17 Jul 2020 05:05 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
us7000aq5d Scaled population (vector) 4.89  
  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
1322104 0 17 Jul 2020 04:49 4.5M, 50.38km N/A 490 thousand (in 100km) 00:15 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 Kiyohashi, Onaba, Futaba, Kayahama, Oragahama, Namie, Odaka, Minami-Ibi, Takahira, Onoda, and Kariyado.

Radius Population
100 km 490000 people
75 km 72000 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
Kiyohashi Fukushima Japan Village - 64 km
Onaba Fukushima Japan Village - 65 km
Futaba Fukushima Japan Village - 65 km
Kayahama Fukushima Japan Village - 65 km
Oragahama Fukushima Japan Village - 66 km
Namie Fukushima Japan Village 22000 people 66 km
Odaka Fukushima Japan Village - 67 km
Minami-Ibi Fukushima Japan Village - 67 km
Takahira Fukushima Japan Village - 68 km
Onoda Fukushima Japan Village - 68 km
Tomioka Fukushima Japan Village - 69 km
Bogoya Fukushima Japan Village - 69 km
Kariyado Fukushima Japan Village - 69 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 99 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 77 km
Onahama JPONA Japan 99 km

Dams

Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 73 km
Yokokawa Yokokawa Otagawa 1983 75 km
Ogaki Ogaki Ukedogawa 1985 76 km
Takanokura Takanokura Mizunashigawa 1975 76 km
Tamanotameike Tamano Udagawa 1945 93 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 64 km
FUKUSHIMA-DAINI JAPAN 4 67 km
ONAGAWA JAPAN 3 99 km

More information

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