M 6.3 in Japan on 04 Aug 2019 10:23 UTC

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: 6.3M
Depth: 38.56 Km
Lat/Lon: 37.7344 , 141.5361
Event Date: 04 Aug 2019 10:23 UTC
Exposed Population: 2570000 people within 100km
Source: NEIC us600050if
Inserted at: 05 Aug 2019 10:27 UTC
INFORM Coping capacity of the alert score: 1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
Tsunami GDACS score
NEIC 0 0 0
us600050if Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.57      
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1268212 0 04 Aug 2019 10:23 6.3M, 38.56km 4.917 2.6 million 0m (at 00:00) 1d 00:04 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
* 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 ,of Tohoku (population 9,984,608) . The alertlevel for this event is GREEN

Intensity Population
87000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1268212 37.734/141.536 6.3 38.6 4.831 04 Aug 2019 10:47 00:24 (new episode)
2 0 1268212 37.734/141.536 6.3 38.6 4.892 04 Aug 2019 11:01 00:38 (upd of #1)
3 0 1268212 37.734/141.536 6.3 38.6 4.838 04 Aug 2019 12:27 02:04 (upd of #2)
4 0 1268212 37.734/141.536 6.3 38.6 4.917 05 Aug 2019 10:27 1d 00:04 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Tohoku Japan 84000 people
Tohoku Japan 1.6 million people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Kashima Fukushima Japan Village5 - 51 km
Odaka Fukushima Japan Village5 - 52 km
Nakumura Fukushima Japan Village4 - 54 km
Namie Fukushima Japan Village4 21000 people 55 km
Haramachi Fukushima Japan Village5 46000 people 55 km
Sakamoto Miyagi Japan Village5 - 58 km
Aji Miyagi Japan Village5 - 59 km
Hanagama Miyagi Japan Village5 - 61 km
Oshika Miyagi Japan Village5 - 62 km
Nitoda Miyagi Japan Village5 - 64 km
Tomioka Fukushima Japan Village5 - 64 km
Yamashita Miyagi Japan Village5 - 64 km
Arahama Miyagi Japan Village5 - 64 km
Oharahama Miyagi Japan Village5 - 65 km
Niiyama Miyagi Japan Village5 - 65 km
Watari Miyagi Japan Village4 35000 people 68 km
Yagawa Miyagi Japan Village5 - 71 km
Marumori Miyagi Japan Village5 16000 people 71 km
Ido Miyagi Japan Village5 - 71 km
Kakuda Miyagi Japan Village5 33000 people 72 km
Iinosaka Miyagi Japan Village5 - 73 km
Watanoha Miyagi Japan Village4 - 78 km
Shiogama Miyagi Japan City 59000 people 78 km
Ogawara Miyagi Japan Village5 22000 people 79 km
Ishinomaki Miyagi Japan City 110000 people 80 km
Sendai Miyagi Japan Major city 1 million people 81 km
Yotsukura Fukushima Japan Village5 - 81 km
Schiogama Miyagi Japan Village5 - 81 km
Hosokura Miyagi Japan Village5 - 82 km
Takagi Miyagi Japan Village5 - 82 km
Takaki Miyagi Japan Village5 - 82 km
Murata Miyagi Japan Village5 - 83 km
Shiroishi Miyagi Japan Village5 39000 people 84 km
Shinden Miyagi Japan Village5 - 85 km
Kamata Miyagi Japan Village5 - 85 km
Nagano Miyagi Japan Village5 - 86 km
Hirawata Miyagi Japan Village5 - 90 km
Wabuchi Miyagi Japan Village5 - 90 km
Oyanagi Miyagi Japan Village5 - 92 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Sendai SDJ 5 Civ. Paved Yes 9800
Kasuminome 5 0
Matsushima 2 Civ. Paved Yes 8800

Ports

Intensity Name LOCODE Country
Soma JPSMA Japan
Ishinomaki JPISM Japan
Shiogama JPSGM Japan

Dams

Intensity Reservoir Dam Name River Year
Yokokawa Yokokawa Otagawa 1983
Tarumizuko Tarumizu Masudagawa 1976
Kamafusako Kamafusa Goishigawa 1970

More information

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