M 6.5 in Cayman Islands from 28 Jan 2020 21:55 UTC to 21:55

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: 6.5M
Depth: 10 Km
Event Date: 28 Jan 2020 21:55 UTC
28 Jan 2020 16:55 Local
Exposed Population: About 54000 people within 100km
Source: PTWC pt20028002
Inserted at: 28 Jan 2020 22:02 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0.1 0 0.1
pt20028002 Scaled population (vector) 4.32 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
1293059 0 28 Jan 2020 21:55 6.3M, 21km N/A 50 thousand (in 100km) 0m (at 00:00) 00:06 NTWC
1293061 0.1 28 Jan 2020 21:55 6.5M, 10km N/A 50 thousand (in 100km) 0m (at 00:00) 00:07 PTWC
1293063 0 28 Jan 2020 21:55 6.1M, 10km 4.9 N/A (in MMI>=VII) 02:05 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: ""53km SE of East End""

Fault parameters

  • Latitude: 18.923
  • Longitude: -80.803
  • Length: 28 km
  • Width: 7 km
  • Magnitude: 6.5 M

Okada parameters:

  • Slip: .8 m
  • Strike: 258 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): -82.303, 17.423, -79.303, 20.423
  • 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.