M 6.2 in Tonga on 27 Jan 2022 06:40 UTC

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: 4.17 Km
Lat/Lon: -19.0681 , -176.3494
Event Date: 27 Jan 2022 06:40 UTC
26 Jan 2022 18:40 Local
Exposed Population: No people affected in 100km
Source: NEIC us7000gfhb
Inserted at: 27 Jan 2022 07:27 UTC
INFORM Coping capacity of the alert score: 1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us7000gfhb Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  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
1423415 0 27 Jan 2022 06:40 6.2M, 14.5km 3.64 N/A (in MMI>=VII) 0m (at 00:00) 00:21 NEIC
1423417 0 27 Jan 2022 06:40 6.2M, 4.17km 3.62 N/A (in MMI>=VII) 0m (at 00:00) 00:47 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 1423417 -19.142/-176.322 6.2 14.5 3.639 27 Jan 2022 07:04 00:24 (new episode)
2 0 1423417 -19.068/-176.349 6.2 4.2 3.623 27 Jan 2022 07:31 00:51 (upd of #1)
3 0 1423417 -19.068/-176.349 6.2 4.2 3.62 27 Jan 2022 08:45 02:04 (upd of #2)
4 0 1423417 -19.068/-176.349 6.2 4.2 3.62 28 Jan 2022 07:40 1d 01:00 (upd of #3)

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.