M 6.9 in Tonga from 04 Nov 2019 22:43 UTC to 22:43

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: 6.9M
Depth: 10 Km
Lat/Lon: -18.4 , -175.2
Event Date: 04 Nov 2019 22:43 UTC
04 Nov 2019 10:43 Local
Exposed Population: Few people within 100km
Source: NTWC at00q0gv4p
Inserted at: 04 Nov 2019 22:55 UTC
INFORM Coping capacity of the alert score
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC 0 0.2 0.2
at00q0gv4p Scaled population (vector) 0.08 Max wave alert 0.22m  
  C1 earthquake 1 Max wave realtime 0.22m  
  C2 earthquake 0      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1277155 0.1 04 Nov 2019 22:43 6.9M, 10km N/A Few people (in 100km) 0.1m (at 01:06) 00:09 PTWC
1277157 0.2 04 Nov 2019 22:43 6.9M, 10km N/A Few people (in 100km) 0.2m (at 01:04) 00:11 NTWC
1277160 0 04 Nov 2019 22:43 6.6M, 13.37km 4.4 N/A (in MMI>=VII) 0m (at 00:00) 02:05 NEIC
1277208 0 04 Nov 2019 22:43 6.6M, 10km 4.31 N/A (in MMI>=VII) 0m (at 00:00) 07:41 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.