M 5.6 in Tonga on 26 Dec 2018 14:11 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: 5.6M
Depth: 83.15 Km
Lat/Lon: -17.2871 , -174.091
Event Date: 26 Dec 2018 14:11 UTC
26 Dec 2018 02:11 Local
Exposed Population: Few people within 100km
Source: NEIC us2000ixpr
Inserted at: 26 Dec 2018 14:33 UTC
INFORM Coping capacity of the alert score
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us2000ixpr 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
1242658 0 26 Dec 2018 14:11 6M, 162.8km N/A No people affected (in 100km) 00:08 PTWC
1242663 0 26 Dec 2018 14:11 5.6M, 83.15km 3.36 N/A (in MMI>=VII) 00:22 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
Samoa Samoa 160000 people
American Samoa American Samoa 53000 people
Niue Niue 2000 people
Wallis & Futuna Wallis and Futuna 14000 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.