M 5.6 in Tonga on 30 Jul 2020 19:16 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: 10 Km
Lat/Lon: -18.9146 , -173.3568
Event Date: 30 Jul 2020 19:16 UTC
30 Jul 2020 07:16 Local
Exposed Population: About 15000 people within 100km
Source: NEIC us6000b72l
Inserted at: 30 Jul 2020 21:18 UTC
INFORM Coping capacity of the alert score: 4.6 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000b72l Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.94  
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
1324115 0 30 Jul 2020 19:16 5.6M, 10km 3.52 N/A (in MMI>=VII) 02:02 NEIC
1324126 0 30 Jul 2020 19:16 5.7M, 10km 3.57 N/A (in MMI>=VII) 1d 00:02 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 9,707) . 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 1324115 -18.915/-173.357 5.6 10.0 3.634 30 Jul 2020 19:33 00:16 (new episode)
2 0 1324115 -18.915/-173.357 5.6 10.0 3.519 30 Jul 2020 21:18 02:02 (upd of #1)
3 0 1324126 -19.032/-173.494 5.7 10.0 3.572 30 Jul 2020 21:51 02:34 (new episode)
4 0 1324126 -19.032/-173.494 5.7 10.0 3.572 31 Jul 2020 19:19 1d 00:02 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Tonga Tonga 9700 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Neiafu Tonga Village 4300 people 72 km

see full list


Critical infrastructure

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

Ports

Intensity Name LOCODE Country Distance
Neiafu TONEI Tonga 71 km

More information

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