M 6.5 in Papua New Guinea from 25 Feb 2023 21:24 UTC to 21:24

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: 6.5M
Depth: 65 Km
Event Date: 25 Feb 2023 21:24 UTC
26 Feb 2023 07:24 Local
Exposed Population: 20 thousand in MMI VI
Source: NTWC at00rqnnhh
Inserted at: 25 Feb 2023 21:37 UTC
INFORM Coping capacity of the alert score:
1.1 (Papua New Guinea)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 Tsunami GDACS score
NTWC 0 0 0
at00rqnnhh Scaled population (vector) 0 Max wave alert 0m  
  C1 rapid impact -0.59 Max wave realtime 0m  
  C2 rapid impact 0.53      
  Country Vulnerability 0      
  INFORM_normalised 1.3      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1492162 0 25 Feb 2023 21:24 6.5M, 65.4km 6.15 20 thousand (in 100km) 0m (at 00:00) 00:09 PTWC
1492163 0 25 Feb 2023 21:24 6.5M, 65km 6.06 20 thousand (in 100km) 0m (at 00:00) 00:12 NTWC
1492165 0 25 Feb 2023 21:24 6.2M, 38.158km 5.54 N/A (in MMI>=VII) 0m (at 00:00) 00:18 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: ""58 km SE of Kandrian""

Fault parameters

  • Latitude: -6.6
  • Longitude: 149.9
  • Length: 28 km
  • Width: 7 km
  • Magnitude: 6.5 M

Okada parameters:

  • Slip: .8 m
  • Strike: 260 (geogr angle: north=0, south=180)
  • Dip: 13 degree
  • Rake: 90 degree
  • Depth: 65 km

Calculation parameters

  • Calculation space (lon/lat): 148.4, -8.1, 151.4, -5.1
  • 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.