M 5.7 in Japan on 16 May 2021 03:23 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: 5.7M
Depth: 16.85 Km
Lat/Lon: 42.0367 , 144.4743
Event Date: 16 May 2021 03:23 UTC
16 May 2021 13:23 Local
Exposed Population: About 3000 people within 100km
Source: NEIC us7000e3h1
Inserted at: 16 May 2021 03:44 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
us7000e3h1 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
1375388 0 16 May 2021 03:23 5.7M, 16.85km 3.68 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 unknowed a zone. 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 1375388 42.037/144.474 5.7 16.9 3.437 16 May 2021 03:49 00:25 (new episode)
2 0 1375388 42.037/144.474 5.7 16.9 3.677 16 May 2021 04:32 01:08 (upd of #1)
3 0 1375388 42.037/144.474 5.7 16.9 3.677 16 May 2021 05:29 02:05 (upd of #2)
4 0 1375388 42.037/144.474 5.7 16.9 3.677 17 May 2021 03:30 1d 00:06 (upd of #3)

Affected Provinces



Critical infrastructure

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

More information

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