M 6.3 in Japan on 17 Apr 2024 14:14 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: 25.7 Km
Event Date: 17 Apr 2024 14:14 UTC
17 Apr 2024 23:14 Local
Exposed Population: 110 thousand (in MMI>=VII)
Source: NEIC us7000mcpi
Inserted at: 17 Apr 2024 14:32 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 0.4 0 0.4
us7000mcpi Scaled population (raster) 4.42 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
1565505 0.4 17 Apr 2024 14:14 6.3M, 25.7km 7.85 110 thousand (in MMI>=VII) 0m (at 00:00) 00:17 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: ""17 km WSW of Uwajima""

Fault parameters

  • Latitude: 33.162
  • Longitude: 132.387
  • 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: 26 km

Calculation parameters

  • Calculation space (lon/lat): 130.887, 31.662, 133.887, 34.662
  • 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.