M 4.5 in Japan on 21 Jun 2024 05:23 UTC

Hazard models

Rapid Impact
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: 58.3 Km
Lat/Lon: 36.4853 , 141.0546
Event Date: 21 Jun 2024 05:23 UTC
21 Jun 2024 14:23 Local
Exposed Population:
7.4 million in MMI III
Source: NEIC us7000mtqy
Inserted at: 21 Jun 2024 06:42 UTC
INFORM Coping capacity of the alert score
1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us7000mtqy Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1577912 0 21 Jun 2024 05:23 4.5M, 58.3km 3.3 7.4 million (in 100km) 01:19 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 off shore.

Radius Population
100 km 3.2 million people
75 km 1.6 million people
50 km 510000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Affected populated places

Name Region Province Country City class Population Distance
Tajirihama Ibaraki Japan Village - 36 km
Hama Ibaraki Japan Village - 37 km
Kawajiri Ibaraki Japan Village - 37 km
Kawaziri Ibaraki Japan Village - 37 km
Hitachi Ibaraki Japan City 180000 people 37 km
Moto-Kawarago Ibaraki Japan Village - 37 km
Ogitsu Ibaraki Japan Village - 38 km
Mizuki Ibaraki Japan Village - 38 km
Tomobe Ibaraki Japan Village - 39 km
Narusawa Ibaraki Japan Village - 39 km
Kuji Ibaraki Japan City 35000 people 40 km
Toyooka Ibaraki Japan Village - 40 km
Nakaminato Ibaraki Japan Village 31000 people 40 km
Shirane Ibaraki Japan Village - 41 km
Yamabe Ibaraki Japan Village - 41 km
Kitakubo Ibaraki Japan Village - 41 km
Ono-Yasashi Ibaraki Japan Village - 41 km
Kitanosawa Ibaraki Japan Village - 42 km
Nagasuna Ibaraki Japan Village - 43 km
Kitakota Ibaraki Japan Village - 43 km
Shuku Ibaraki Japan Village - 43 km
Isohara Ibaraki Japan Village - 44 km
Suzudaira Ibaraki Japan Village - 44 km
Mayumi Ibaraki Japan Village - 45 km
Kezuruki-Yashiki Ibaraki Japan Village - 45 km
Irishiken Ibaraki Japan Village - 45 km
Takahara Ibaraki Japan Village - 45 km
Kisara Ibaraki Japan Village - 46 km
Kanari Ibaraki Japan Village - 46 km
Torizone Ibaraki Japan Village - 47 km
Satonomiya Ibaraki Japan Village - 47 km
Nakane Ibaraki Japan Village - 47 km
Hirakata Ibaraki Japan Village - 47 km
Yunami Ibaraki Japan Village - 47 km
Wabuchi Ibaraki Japan Village - 49 km
Tahiko Ibaraki Japan Village - 49 km
Machiya Ibaraki Japan Village - 49 km
Yonedaira Ibaraki Japan Village - 49 km
Uchino Ibaraki Japan Village - 49 km
Ogushi Ibaraki Japan Village - 49 km
Shinden Ibaraki Japan Village - 49 km
Wakaguri Ibaraki Japan Village - 49 km
Natsumi Ibaraki Japan Village - 50 km
Mazaka Ibaraki Japan Village - 50 km
Shimo-Okado Ibaraki Japan Village - 50 km
Terashita Fukushima Japan Village - 50 km
Yokokawa Ibaraki Japan Village - 50 km
Ohata Ibaraki Japan Village - 50 km
Sugaya Ibaraki Japan Village - 51 km
Kozura Ibaraki Japan Village - 51 km
Hosoda Ibaraki Japan Village - 51 km
Ota Ibaraki Japan Village - 51 km
Kamigama Ibaraki Japan Village - 51 km
Kume Ibaraki Japan Village - 52 km
Ueda Fukushima Japan City - 52 km
Morido Ibaraki Japan Village - 52 km
Obama Fukushima Japan Village - 52 km
Kubota Fukushima Japan Village - 52 km
Koshigoe Ibaraki Japan Village - 52 km
Idekura Fukushima Japan Village - 52 km
Oyagaw Ibaraki Japan Village - 53 km
Machida Ibaraki Japan Village - 53 km
Noda Ibaraki Japan Village - 53 km
Onahama Fukushima Japan City - 53 km
Shimo-Kimida Ibaraki Japan Village - 53 km
Nishitari Ibaraki Japan Village - 54 km
Ohahama Fukushima Japan Village - 54 km
Urizura Ibaraki Japan Village - 54 km
Uritsura Ibaraki Japan Village - 54 km
Katsuori Ibaraki Japan Village - 54 km
Nagasu Ibaraki Japan Village - 54 km
Okaneda Ibaraki Japan Village - 55 km
Mizunuma Ibaraki Japan Village - 55 km
Ogawa Fukushima Japan Village - 55 km
Ena Fukushima Japan Village - 55 km
Soeno Fukushima Japan Village - 55 km
Kegano Ibaraki Japan Village - 55 km
Orihashi Ibaraki Japan Village - 55 km
Asahi Ibaraki Japan Village - 55 km
Hokota Ibaraki Japan Village 28000 people 55 km
Iida Ibaraki Japan Village - 56 km
Yoshisawa Ibaraki Japan Village - 56 km
Otake Ibaraki Japan Village - 56 km
Tanebe Fukushima Japan Village - 56 km
Nakasai Ibaraki Japan Village - 56 km
Semba Ibaraki Japan Village - 56 km
Hatta Fukushima Japan Village - 56 km
Saimaru Ibaraki Japan Village - 56 km
Sumiyoshi Fukushima Japan Village - 57 km
Shimo-Miyagodo Ibaraki Japan Village - 57 km
Toyoma Fukushima Japan Village - 57 km
Dainigorisawa Ibaraki Japan Village - 57 km
Onida Ibaraki Japan Village - 57 km
O-Naka Ibaraki Japan Village - 57 km
Kamitsubo Ibaraki Japan Village - 58 km
Otsu Fukushima Japan Village - 58 km
Kami-Takakura Ibaraki Japan Village - 58 km
Kasaishi Ibaraki Japan Village - 58 km
Omiya Ibaraki Japan Village 27000 people 58 km
Ambo Ibaraki Japan Village - 58 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
Hyakuri 32 Mil. Paved Yes 8800 67 km
26 0 92 km
Ryugasaki 2 0 97 km
Fukushima FKS 372 Civ. Paved Yes 8200 100 km
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 100 km
Ryugasaki South 2 0 100 km

Ports

Name LOCODE Country Distance
Hitachi JPHTC Japan 38 km
Onahama JPONA Japan 52 km
Kashima JPKSM Japan 72 km
Choshi JPCHO Japan 86 km

Dams

Reservoir Dam Name River Year Distance
Mizunuma Mizunuma Hanazonokawa 1966 53 km
Shitokiko Shitoki Shitokigawa 1983 56 km
Jajanboike Kozogawa Kozogawa 1985 59 km
Takashibako Takashiba Samekawa 1961 60 km
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 76 km
Bobatako Sengozawa Kitasugawa 1974 93 km

Nuclear power plants

Site Type Name Country
Site-Tōkai Nuclear Fuel Cycle Tokai II NPP Site SFSF Japan
Site-Tōkai Nuclear Power Plant Tokai-2 Japan
Site-Tōkai Nuclear Fuel Cycle JAEA Tokai (PFDF-MOX) Japan
Site-Tōkai Nuclear Fuel Cycle Tokai Works Japan
Site-Tokai Nuclear Power Plant Tokai-1
Site-Tokai-Mura Research Reactor STACY Japan
Site-Tokai-Naka Research Reactor TCA Tank Critical Assembly Japan
Site-Tokai-Naka Research Reactor TRACY Japan
Site-Tokai-Mura Research Reactor FCA Japan
Site-Tokai-Naka Research Reactor YAYOI Japan
Site-Tokai-Mura Research Reactor JRR-2 Japan
Site-Tokai-Mura Research Reactor JRR-4 Japan
Site-Tōkai Nuclear Fuel Cycle Plutonium Fuel Production Facility (PFPF-FBR) Japan
Site-Tōkai Nuclear Fuel Cycle MNF-Fuel Fabrication Facility Japan
Site-Tōkai Nuclear Fuel Cycle MNF-Reconversion facility Japan
Site-Pendang Research reactor NSRR Malaysia
Site-Pendang Research reactor JRR-3M Malaysia
Site-Pendang Research reactor JRR-3M Japan
Site-Pendang Research reactor NSRR Japan
Site-Tōkai Nuclear Fuel Cycle MitsubishiNuclear Fuels Ltd(MNF) - Okegawa Plant Japan
Site-Oarai-machi Research Reactor DCA Japan
Site-Oarai Research Reactor JOYO Japan
Site-Higashiibaraki-gun Research Reactor JMTR Japan
Site-Ōarai Research reactor HTTR Japan

More information

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