M 6.3 in New Zealand on 06 Mar 2021 00:16 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: 6.3M
Depth: 11.57 Km
Event Date: 06 Mar 2021 00:16 UTC
06 Mar 2021 12:16 Local
Exposed Population: About 100 people within 100km
Source: NEIC us7000dg8x
Inserted at: 06 Mar 2021 01:02 UTC
INFORM Coping capacity of the alert score:
2 (New Zealand)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 0 0
us7000dg8x Scaled population (raster) 1.04 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  Country Vulnerability -0.33      
  INFORM_normalised 0.63      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1362699 0 06 Mar 2021 00:16 6.4M, 9.2km 5.33 N/A (in MMI>=VII) 0.1m (at 00:52) 00:22 NEIC
1362705 0 06 Mar 2021 00:16 6.3M, 11.57km 5.33 N/A (in MMI>=VII) 0m (at 00:00) 00:46 NEIC
1362708 0 06 Mar 2021 00:16 6.3M, 8.99km 4.97 N/A (in MMI>=VII) 0.1m (at 00:52) 00:57 NEIC
1363418 0.1 06 Mar 2021 00:16 6.3M, 13km 5.02 N/A (in MMI>=VII) 0.1m (at 00:00) 1d 22:32 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 6.3, off the east coast of the North Island of New Zealand""

Fault parameters

  • Latitude: -37.602
  • Longitude: 179.6
  • Length: 22 km
  • Width: 6 km
  • Magnitude: 6.3 M

Okada parameters:

  • Slip: .6 m
  • Strike: 202 (geogr angle: north=0, south=180)
  • Dip: 17 degree
  • Rake: 90 degree
  • Depth: 12 km

Calculation parameters

  • Calculation space (lon/lat): 178.1, -39.102, 181.1, -36.102
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

For a full list of available products related to this event, please refer to the GDACS Resources page.