M 7.3 in Macquarie Island Region on 19 May 2022 10:13 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: 7.3M
Depth: 29 Km
Event Date: 19 May 2022 10:13 UTC
19 May 2022 21:13 Local
Exposed Population: No people affected in 100km
Source: NTWC at00rc47gw
Inserted at: 19 May 2022 10:37 UTC
INFORM Coping capacity of the alert score:
1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)
Tsunami GDACS score
NTWC 0 0 0
at00rc47gw 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      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1444024 0 19 May 2022 10:13 7.3M, 29.3km N/A No people affected (in 100km) 0m (at 00:00) 00:16 PTWC
1444026 0 19 May 2022 10:13 7.3M, 29km 6.87 No people affected (in 100km) 0m (at 00:00) 00:24 NTWC
1444030 0 19 May 2022 10:13 6.7M, 10km 7.1 N/A (in MMI>=VII) 0m (at 00:00) 00:26 NEIC
1444033 0 19 May 2022 10:13 6.9M, 10km 5.52 N/A (in MMI>=VII) 0m (at 00:00) 00:49 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 7.3, Macquarie Island region""

Fault parameters

  • Latitude: -53.8
  • Longitude: 158.9
  • Length: 70 km
  • Width: 19 km
  • Magnitude: 7.3 M

Okada parameters:

  • Slip: 1.9 m
  • Strike: 225 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 29 km

Calculation parameters

  • Calculation space (lon/lat): 152.9, -59.8, 164.9, -47.8
  • Instead of Step -> use Cell size:1 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.