M 6.2 in Samoa from 15 May 2020 14:49 UTC to 14:49

Hazard models

EQ parameters
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: 6.2M
Depth: 41.5 Km
Event Date: 15 May 2020 14:49 UTC
15 May 2020 02:49 Local
Exposed Population: About 800 people within 100km
Source: PTWC pt20136001
Inserted at: 15 May 2020 15:01 UTC
INFORM Coping capacity of the alert score:
1.1 (Samoa)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0 0 0
pt20136001 Scaled population (vector) 1.93 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  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
1310528 0 15 May 2020 14:49 6.2M, 41.5km N/A Few people (in 100km) 0m (at 00:00) 00:12 PTWC
1310529 0 15 May 2020 14:49 5.8M, 15.88km 3.77 N/A (in MMI>=VII) 00:22 NEIC
1310762 0 15 May 2020 14:49 5.7M, 12.6km 3.77 N/A (in MMI>=VII) 1d 00:57 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: ""91km ESE of Hihifo""

Fault parameters

  • Latitude: -16.229
  • Longitude: -172.942
  • Length: 19 km
  • Width: 5 km
  • Magnitude: 6.2 M

Okada parameters:

  • Slip: .6 m
  • Strike: 182 (geogr angle: north=0, south=180)
  • Dip: 10 degree
  • Rake: 90 degree
  • Depth: 42 km

Calculation parameters

  • Calculation space (lon/lat): -174.442, -17.729, -171.442, -14.729
  • 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.