M 6.6 in Vanuatu on 02 Mar 2023 18:04 UTC

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: 02 Mar 2023 18:04 UTC
03 Mar 2023 05:04 Local
Exposed Population: 20 thousand in MMI&>=V
Source: NEIC usd000j5jt
Inserted at: 02 Mar 2023 18:37 UTC
INFORM Coping capacity of the alert score:
1.1 (Vanuatu)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
Tsunami GDACS score
NEIC 0 0.3 0.3
usd000j5jt Scaled population (raster) 0 Max wave alert 0.37m  
  C1 shakemap 0 Max wave realtime 0.37m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
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  0.4m in Pualapa, Vanuatu. This height is estimated for 2-Mar-2023 18:11:16.

Alert Date (UTC) Name Country Wave height (m)
2-Mar-2023 18:11:16 Pualapa Vanuatu  0.4
2-Mar-2023 18:09:87 Tasmate Vanuatu  0.3
2-Mar-2023 18:09:84 Wousi Vanuatu  0.3
2-Mar-2023 18:24:25 Losoue Vanuatu  0.3
2-Mar-2023 18:16:69 Nogugu Vanuatu  0.2
2-Mar-2023 18:16:69 Papoulassemouli Vanuatu  0.2
2-Mar-2023 18:08:36 Vesalia Vanuatu  0.2
2-Mar-2023 18:09:87 Wonisule Vanuatu  0.2
2-Mar-2023 18:26:58 Tasiriki Vanuatu  0.1
2-Mar-2023 18:29:32 Wowo Vanuatu  0.1
2-Mar-2023 18:28:81 Olo Olo Vanuatu  0.1
2-Mar-2023 18:17:91 Lolominiou Vanuatu  0.1
2-Mar-2023 18:19:62 Wunpuku Vanuatu  0.1
2-Mar-2023 18:19:62 Walpey Vanuatu  0.1
2-Mar-2023 18:19:62 Hokua Vanuatu  0.1
2-Mar-2023 18:27:34 Tenmaru Vanuatu  0.1
2-Mar-2023 18:36:18 Asavagas Vanuatu  0.1
2-Mar-2023 18:47:47 Laruru Vanuatu  0.1
2-Mar-2023 18:47:47 Vao Vanuatu  0.1
2-Mar-2023 18:09:87 Menogoro Vanuatu  0.1
2-Mar-2023 18:54:97 Abnetare Vanuatu  0.1
2-Mar-2023 18:44:17 Tolab Vanuatu  0.1

See full locations list (RSS)


Initial conditions

Title: ""80 km WSW of Port-Olry""

Fault parameters

  • Latitude: -15.293
  • Longitude: 166.366
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 365 (geogr angle: north=0, south=180)
  • Dip: 29 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): 164.866, -16.793, 167.866, -13.793
  • 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.