M 6.6 in Solomon Islands from 12 May 2020 22:41 UTC to 22:41

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: 119.1 Km
Event Date: 12 May 2020 22:41 UTC
13 May 2020 09:41 Local
Exposed Population: About 3000 people within 100km
Source: PTWC pt20133000
Inserted at: 12 May 2020 22:49 UTC
INFORM Coping capacity of the alert score:
6.6 (Solomon Is.)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0 0 0
pt20133000 Scaled population (vector) 3.07 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  Country Vulnerability 0.44      
  INFORM_normalised 1.18      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1310031 0 12 May 2020 22:41 6.6M, 119.1km N/A 4 thousand (in 100km) 0m (at 00:00) 00:08 PTWC
1310032 0 12 May 2020 22:41 6.6M, 125km N/A 4 thousand (in 100km) 0m (at 00:00) 00:10 NTWC
1310033 0 12 May 2020 22:41 6.6M, 112.36km 5.45 N/A (in MMI>=VII) 0m (at 00:00) 1d 00:04 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: ""172km SSE of Lata""

Fault parameters

  • Latitude: -12.12
  • Longitude: 166.516
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 342 (geogr angle: north=0, south=180)
  • Dip: 48 degree
  • Rake: 90 degree
  • Depth: 119 km

Calculation parameters

  • Calculation space (lon/lat): 165.016, -13.62, 168.016, -10.62
  • 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.