M 6.6 in Solomon Is. from 15 Oct 2021 02:44 UTC to 02:44

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: 6.6M
Depth: 33 Km
Event Date: 15 Oct 2021 02:44 UTC
15 Oct 2021 13:44 Local
Exposed Population: 30 thousand in 100km
Source: PTWC pt21288000
Inserted at: 18 Oct 2021 15:01 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 0.4 0 0.4
pt21288000 Scaled population (vector) 4.26 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
1402314 0.4 15 Oct 2021 02:44 6.6M, 33km N/A 30 thousand (in 100km) 0m (at 00:00) 3d 12:16 PTWC
1402316 0.4 15 Oct 2021 02:45 6.6M, 33km N/A 30 thousand (in 100km) 0m (at 00:00) 3d 12:15 NTWC
1402319 0 15 Oct 2021 02:44 6.4M, 22.55km 6.22 N/A (in MMI>=VII) 0m (at 00:00) 3d 12:14 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: ""151 km WSW of Buala""

Fault parameters

  • Latitude: -8.882
  • Longitude: 158.429
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 302 (geogr angle: north=0, south=180)
  • Dip: 21 degree
  • Rake: 90 degree
  • Depth: 33 km

Calculation parameters

  • Calculation space (lon/lat): 156.929, -10.382, 159.929, -7.382
  • 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.