M 6.3 in Southeast Of Honshu, Japan on 16 Jan 2023 04:49 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: 6.3M
Depth: 409.088 Km
Lat/Lon: 29.0005 , 139.3466
Event Date: 16 Jan 2023 04:49 UTC
16 Jan 2023 13:49 Local
Exposed Population:
Source: NEIC us7000j4mj
Inserted at: 16 Jan 2023 05:04 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us7000j4mj Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap 0 Max wave realtime 0m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
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
1483838 0 16 Jan 2023 04:49 6.3M, 409.088km 3.1 N/A (in MMI>=VII) 0m (at 00:00) 00:14 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 1483838 139.347/29 6.3 409.1 2.778 16 Jan 2023 05:09 00:19 (new episode)
2 0 1483838 139.361/28.987 6.3 405 2.795 16 Jan 2023 06:43 01:54 (upd of #1)
3 0 1483838 139.361/28.987 6.3 405 2.795 16 Jan 2023 06:55 02:05 (upd of #2)
4 0 1483838 139.361/28.987 6.3 405 2.795 17 Jan 2023 05:40 1d 00:50 (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.