M 6.8 in Vanuatu from 02 Mar 2023 18:04 UTC to 18:04

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: 6.8M
Depth: 33 Km
Event Date: 02 Mar 2023 18:04 UTC
03 Mar 2023 05:04 Local
Exposed Population: 10 thousand in MMI VI
Source: NTWC at00rqwnjj
Inserted at: 02 Mar 2023 18:15 UTC
INFORM Coping capacity of the alert score:
1.1 (Vanuatu)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 Tsunami GDACS score
NTWC 0 0.2 0.2
at00rqwnjj Scaled population (vector) 0 Max wave alert 0.2m  
  C1 rapid impact -0.59 Max wave realtime 0.2m  
  C2 rapid impact 0.53      
  Country Vulnerability 0      
  INFORM_normalised 1.12      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1493128 0.1 02 Mar 2023 18:04 6.8M, 33km N/A 10 thousand (in 100km) 0.2m (at 00:20) 00:10 PTWC
1493129 0.2 02 Mar 2023 18:04 6.8M, 33km N/A 10 thousand (in 100km) 0.2m (at 00:20) 00:10 NTWC
1493132 0.2 02 Mar 2023 18:04 6.5M, 10km 6.25 N/A (in MMI>=VII) 0.2m (at 00:05) 00:21 NEIC
1493136 0.3 02 Mar 2023 18:04 6.6M, 10km 6.05 N/A (in MMI>=VII) 0.4m (at 00:07) 00:33 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

The maximum Wave height is  0.2m in Tasiriki, Vanuatu. This height is estimated for 2-Mar-2023 18:24:74.

Alert Date (UTC) Name Country Wave height (m)
2-Mar-2023 18:24:74 Tasiriki Vanuatu  0.2
2-Mar-2023 18:51:14 Losoue Vanuatu  0.1
2-Mar-2023 18:10:18 Wousi Vanuatu  0.1
2-Mar-2023 18:10:18 Pualapa Vanuatu  0.1
2-Mar-2023 18:37:52 Laruru Vanuatu  0.1
2-Mar-2023 18:37:52 Vao Vanuatu  0.1
2-Mar-2023 18:54:15 Youelapa Vanuatu  0.1
2-Mar-2023 18:51:75 Abnetare Vanuatu  0.1
2-Mar-2023 18:10:12 Tasmate Vanuatu  0.1
2-Mar-2023 18:25:47 Nogugu Vanuatu  0.1
2-Mar-2023 18:25:47 Papoulassemouli Vanuatu  0.1
2-Mar-2023 19:11:75 Melip Vanuatu  0.1
2-Mar-2023 18:11:82 Wonisule Vanuatu  0.1
2-Mar-2023 18:32:22 Wowo Vanuatu  0.1

See full locations list (RSS)


Initial conditions

Title: ""92 km W of Luganville""

Fault parameters

  • Latitude: -15.5
  • Longitude: 166.3
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 334 (geogr angle: north=0, south=180)
  • Dip: 24 degree
  • Rake: 90 degree
  • Depth: 33 km

Calculation parameters

  • Calculation space (lon/lat): 163.3, -18.5, 169.3, -12.5
  • 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.