M 5.5 in Japan on 22 Nov 2020 10:05 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: 5.5M
Depth: 34.64 Km
Lat/Lon: 36.5831 , 141.0639
Event Date: 22 Nov 2020 10:05 UTC
22 Nov 2020 19:05 Local
Exposed Population: 3020000 people within 100km
Source: NEIC us6000crfr
Inserted at: 22 Nov 2020 10:26 UTC
INFORM Coping capacity of the alert score: 1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000crfr Scaled population (raster) 0  
  C1 shakemap -0.59  
  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
1344373 0 22 Nov 2020 10:05 5.5M, 34.64km 3.9 N/A (in MMI>=VII) 00:20 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 ,of Kanto (population 2,336,666) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1344373 36.583/141.064 5.5 34.6 3.767 22 Nov 2020 10:29 00:23 (new episode)
2 0 1344373 36.583/141.064 5.5 34.6 3.936 22 Nov 2020 11:31 01:25 (upd of #1)
3 0 1344373 36.583/141.064 5.5 34.6 3.884 22 Nov 2020 12:10 02:04 (upd of #2)
4 0 1344373 36.583/141.064 5.5 34.6 3.895 23 Nov 2020 10:11 1d 00:05 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Kanto Japan 2.3 million people
Tohoku Japan 300000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Kawaziri Ibaraki Japan Village - 34 km
Kitakubo Ibaraki Japan Village - 36 km
Hitachi Ibaraki Japan City 180000 people 36 km
Isohara Ibaraki Japan Village - 37 km
Kuji Ibaraki Japan City 35000 people 42 km
Ueda Fukushima Japan City - 43 km
Onahama Fukushima Japan City - 43 km
Ena Fukushima Japan Village - 44 km
Nakaminato Ibaraki Japan Village 31000 people 45 km
Otsu Fukushima Japan Village - 49 km
Taira Fukushima Japan City - 53 km
Sugaya Ibaraki Japan Village - 53 km
Uritsura Ibaraki Japan Village - 56 km
Iida Ibaraki Japan Village - 59 km

see full list


Critical infrastructure

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

Ports

Intensity Name LOCODE Country Distance
Hitachi JPHTC Japan 40 km
Onahama JPONA Japan 42 km

Dams

Intensity Reservoir Dam Name River Year Distance
Takashibako Takashiba Samekawa 1961 52 km

Nuclear plants

Intensity Name Country Reactors Distance
TOKAI JAPAN 3 43 km

More information

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