M 5.5 in Tonga on 06 Nov 2018 16:11 UTC
EQ parameters

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: -22.1823 , -174.4488
Event Date: 06 Nov 2018 16:11 UTC
06 Nov 2018 04:11 Local
Exposed Population: No people affected in MMI IV
About 100 people within 100km
Source: NEIC us2000i7iz
Inserted at: 06 Nov 2018 16:43 UTC
INFORM Coping capacity of the alert score: 1.1 (Tonga)


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us2000i7iz 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.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1235614 0 06 Nov 2018 16:11 5.8M, 10km 3.44 Few people 00:25 NEIC
1235629 0 06 Nov 2018 16:11 5.5M, 10km 3.3 Few people 00:32 NEIC
1235640 0 06 Nov 2018 16:11 5.6M, 10km 3.25 Few people 01:24 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 Tonga , of Tonga (population 98,000) .

Radius Population
100 km <1000 people
75 km no people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Tonga Tonga 98000 people

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.