M 6.9 in Papua New Guinea on 23 Mar 2024 20:22 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

This earthquake is expected to have a high humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.9M
Depth: 40.2 Km
Event Date: 23 Mar 2024 20:22 UTC
24 Mar 2024 06:22 Local
Exposed Population: 180 thousand (in MMI>=VII)
Source: NEIC us6000mksx
Inserted at: 23 Mar 2024 21:58 UTC
INFORM Coping capacity of the alert score:
7.6 (Papua New Guinea)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 2.1 0 2.1
us6000mksx Scaled population (vector) 4.21 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 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
1560710 2 23 Mar 2024 20:22 7M, 63.5km 7.06 170 thousand (in 100km) 0m (at 00:00) 00:09 PTWC
1560712 1.9 23 Mar 2024 20:22 7M, 64km 7.06 160 thousand (in 100km) 0m (at 00:00) 00:10 NTWC
1560714 2 23 Mar 2024 20:22 6.9M, 35.4km 7.57 140 thousand (in MMI>=VII) 0m (at 00:00) 00:18 NEIC
1560728 2.1 23 Mar 2024 20:22 6.9M, 40.2km 7.56 180 thousand (in MMI>=VII) 0m (at 00:00) 01:36 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 6.9, 38 km ENE of Ambunti, Papua New Guinea""

Fault parameters

  • Latitude: -4.139
  • Longitude: 143.159
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 114 (geogr angle: north=0, south=180)
  • Dip: 28 degree
  • Rake: 90 degree
  • Depth: 40 km

Calculation parameters

  • Calculation space (lon/lat): 140.159, -7.139, 146.159, -1.139
  • Instead of Step -> use Cell size:.5 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.