M 4.5 in Japan on 16 May 2021 06:41 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: 39.34 Km
Lat/Lon: 37.6362 , 141.5533
Event Date: 16 May 2021 06:41 UTC
16 May 2021 15:41 Local
Exposed Population:
2470000 people within 100km
Source: NEIC us7000e3hs
Inserted at: 16 May 2021 07:19 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
us7000e3hs Scaled population (vector) 5.51  
  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
1375411 0 16 May 2021 06:41 4.6M, 10km N/A 2.2 million (in 100km) 00:28 NEIC
1375412 0 16 May 2021 06:41 4.5M, 39.34km N/A 2.5 million (in 100km) 00:38 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 Kayahama, Minami-Ibi, Onaba, Kiyohashi, Takahira, Odaka, Namie, Isobe, Futaba, Kashima, and Sendai.

Radius Population
100 km 2.5 million people
75 km 150000 people
50 km 8200 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
Kayahama Fukushima Japan Village - 48 km
Minami-Ibi Fukushima Japan Village - 48 km
Onaba Fukushima Japan Village - 49 km
Kiyohashi Fukushima Japan Village - 50 km
Takahira Fukushima Japan Village - 50 km
Odaka Fukushima Japan Village - 50 km
Namie Fukushima Japan Village 22000 people 52 km
Isobe Fukushima Japan Village - 52 km
Futaba Fukushima Japan Village - 52 km
Kashima Fukushima Japan Village - 52 km
Onoda Fukushima Japan Village - 53 km
Kariyado Fukushima Japan Village - 54 km
Umekawa Fukushima Japan Village - 54 km
Kita-Nagano Fukushima Japan Village - 55 km
Oragahama Fukushima Japan Village - 55 km
Nakanouchi Fukushima Japan Village - 55 km
Haramachi Fukushima Japan Village 47000 people 55 km
Koyamada Fukushima Japan Village - 55 km
Tachiya Fukushima Japan Village - 55 km
Haragama Fukushima Japan Village - 56 km
Oyama Fukushima Japan Village - 57 km
Nakumura Fukushima Japan Village - 58 km
Okuma Fukushima Japan Village - 58 km
Bogoya Fukushima Japan Village - 58 km
Tomioka Fukushima Japan Village - 58 km
Takatsudo Fukushima Japan Village - 59 km
Tetsuzan Fukushima Japan Village - 59 km
Ogawara Fukushima Japan Village - 59 km
Sekimori Fukushima Japan Village - 60 km
Shajigami Fukushima Japan Village - 60 km
Komagamine Fukushima Japan Village - 60 km
Tsurishi Fukushima Japan Village - 61 km
Kuroki Fukushima Japan Village - 61 km
Otsubo Fukushima Japan Village - 62 km
Suketsune Fukushima Japan Village - 62 km
Kami-Shigeoka Fukushima Japan Village - 62 km
Hirusone Fukushima Japan Village - 62 km
Iso Miyagi Japan Village - 62 km
Ide Fukushima Japan Village - 63 km
Sugaya Fukushima Japan Village - 63 km
Kodeya Fukushima Japan Village - 63 km
Naraha Fukushima Japan Village - 63 km
Sakamoto Miyagi Japan Village - 64 km
Kunugidaira Fukushima Japan Village - 65 km
Gomaisawa Fukushima Japan Village - 66 km
Kashiwabara Fukushima Japan Village - 66 km
Hiso Fukushima Japan Village - 67 km
Shimo-Kitabo Fukushima Japan Village - 67 km
Ohana Fukushima Japan Village - 67 km
Hanagama Miyagi Japan Village - 67 km
Kasano Miyagi Japan Village - 68 km
Ashimata Fukushima Japan Village - 68 km
Jikenjo Fukushima Japan Village - 68 km
Kami-Asamigawa Fukushima Japan Village - 68 km
Ouchi Miyagi Japan Village - 69 km
Komiya Fukushima Japan Village - 69 km
Futawatashi Miyagi Japan Village - 69 km
Sendai Miyagi Japan Major city 1 million people 90 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 79 km
Kasuminome 5 0 86 km
Matsushima 2 Civ. Paved Yes 8800 90 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 56 km
Ishinomaki JPISM Japan 89 km
Shiogama JPSGM Japan 89 km
Onagawa JPONG Japan 90 km
Onahama JPONA Japan 96 km

Dams

Reservoir Dam Name River Year Distance
Yokokawa Yokokawa Otagawa 1983 57 km
Takanokura Takanokura Mizunashigawa 1975 59 km
Ogaki Ogaki Ukedogawa 1985 61 km
Sakashita Sakashita Okawaragawa 1973 61 km
Tamanotameike Tamano Udagawa 1945 73 km
Tarumizuko Tarumizu Masudagawa 1976 87 km
Kamafusako Kamafusa Goishigawa 1970 98 km
1991 99 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 52 km
FUKUSHIMA-DAINI JAPAN 4 58 km
ONAGAWA JAPAN 3 85 km

More information

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