M 6.3 in Japan on 21 Jan 2022 16:08 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: 6.3M
Depth: 39 Km
Event Date: 21 Jan 2022 16:08 UTC
22 Jan 2022 01:08 Local
Exposed Population: About 3000 people in MMI
4 thousand (in MMI>=VII)
Source: NEIC us7000gdwz
Inserted at: 22 Jan 2022 16:11 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
us7000gdwz Scaled population (raster) 3.3 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.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1422415 0.3 21 Jan 2022 16:08 6.6M, 51km N/A 1.7 million (in 100km) 0m (at 00:00) 00:09 NTWC
1422420 0 21 Jan 2022 16:08 6.3M, 41.82km 6.17 N/A (in MMI>=VII) 0m (at 00:00) 00:20 NEIC
1422634 0 21 Jan 2022 16:08 6.3M, 39km 6.53 4 thousand (in MMI>=VII) 0m (at 00:00) 1d 00:02 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.

Tsunami affected locations

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: ""M 6.3, 26 km SSE of Saiki, Japan""

Fault parameters

  • Latitude: 32.744
  • Longitude: 132.043
  • Length: 22 km
  • Width: 6 km
  • Magnitude: 6.3 M

Okada parameters:

  • Slip: .6 m
  • Strike: 220 (geogr angle: north=0, south=180)
  • Dip: 11 degree
  • Rake: 90 degree
  • Depth: 39 km

Calculation parameters

  • Calculation space (lon/lat): 130.543, 31.244, 133.543, 34.244
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

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