M 5.5 in Mid-Indian Ridge on 06 Dec 2022 09:34 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: 5.5M
Depth: 10 Km
Lat/Lon: -40.8149 , 78.6359
Event Date: 06 Dec 2022 09:34 UTC
06 Dec 2022 14:34 Local
Exposed Population:
Source: NEIC us6000j7at
Inserted at: 06 Dec 2022 21:06 UTC
INFORM Coping capacity of the alert score: 1.1 ()


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us6000j7at Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1477249 0 06 Dec 2022 09:34 5.1M, 10km 5.62 No people affected (in 100km) 00:26 NEIC
1477336 0 06 Dec 2022 09:34 5.5M, 10km N/A less than 100 (in MMI>=VII) 11:31 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.

Exposed population

The earthquake happened in unknowed a zone. The alertlevel for this event is GREEN

Intensity Population
no people

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1477336 78.636/-40.815 5.5 10 0 06 Dec 2022 21:09 11:34 (new episode)
2 0 1477336 78.636/-40.815 5.5 10 0 07 Dec 2022 09:40 1d 00:05 (upd of #1)

Affected Provinces

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.