M 6.7 in Tonga from 01 Oct 2020 01:13 UTC to 01:13

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: 6.7M
Depth: 10 Km
Lat/Lon: -19.1 , -173.6
Event Date: 01 Oct 2020 01:13 UTC
30 Sep 2020 13:13 Local
Exposed Population: About 16000 people within 100km
Source: NTWC at00qhi0qn
Inserted at: 01 Oct 2020 01:23 UTC
INFORM Coping capacity of the alert score
4.6 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC 0 0 0
at00qhi0qn Scaled population (vector) 3.89 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  Country Vulnerability 0      
  INFORM_normalised 0.94      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1335549 0 01 Oct 2020 01:13 6.7M, 10km N/A 20 thousand (in 100km) 0m (at 00:00) 00:08 PTWC
1335550 0 01 Oct 2020 01:13 6.7M, 10km N/A 20 thousand (in 100km) 0m (at 00:00) 00:09 NTWC
1335555 0 01 Oct 2020 01:13 6.4M, 35km 5.85 N/A (in MMI>=VII) 0m (at 00:00) 01:01 NEIC
1335735 0 01 Oct 2020 01:13 6.4M, 28km 5.85 N/A (in MMI>=VII) 0m (at 00:00) 1d 00:04 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) . The nearest places are and Neiafu.

Radius Population
100 km 16000 people
75 km 15000 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
Niue Niue 2000 people

Affected populated places

Name Region Province Country City class Population Distance
Neiafu Tonga Village 4300 people 64 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Vavau International VAV 72 Civ. Unpaved Yes 5500 69 km

Ports

Name LOCODE Country Distance
Neiafu TONEI Tonga 63 km

More information

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