M 6.6 Off-shore on 16 Apr 2025 01:42 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: 6.6M
Depth: 10 Km
Event Date: 16 Apr 2025 01:42 UTC
16 Apr 2025 08:42 Local
Exposed Population:
Source: NEIC us6000q6cs
Inserted at: 16 Apr 2025 01:59 UTC
INFORM Coping capacity of the alert score:
1.1 ()

GDACS Score

For more info on GDACS score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us6000q6cs 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.
Click on images to zoom it.

Episode Timeline

IDLevelScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1633901 0 16 Apr 2025 01:42 6.6M, 10km 7.76 N/A (in MMI>=VII) 0m (at 00:00) 00:16 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

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

See full locations list (RSS)


Initial conditions

Title: ""southeast Indian Ridge""

Fault parameters

  • Latitude: -47.843
  • Longitude: 99.758
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 278 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): 98.258, -49.343, 101.258, -46.343
  • 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.