M 5.5 in Tonga Islands on 19 Jun 2022 11:49 UTC

Hazard models

Rapid Impact
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: 5.5M
Depth: 39.12 Km
Lat/Lon: -20.3489 , -174.8098
Event Date: 19 Jun 2022 11:49 UTC
20 Jun 2022 00:49 Local
Exposed Population: Less then 100 people in MMI V
2 thousand in MMI IV
Source: NEIC us7000hiiy
Inserted at: 19 Jun 2022 12:21 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000hiiy 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.

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
1449356 0 19 Jun 2022 11:49 5.3M, 40.63km 3.8 50 thousand (in 100km) 00:23 NEIC
1449358 0 19 Jun 2022 11:49 5.5M, 39.12km 4.8 N/A (in MMI>=VII) 00:32 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 37,389) . 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 1449358 -20.349/-174.81 5.5 39.1 4.17 19 Jun 2022 12:22 00:32 (new episode)
2 0 1449358 -20.349/-174.81 5.5 39.1 4.17 19 Jun 2022 13:52 02:02 (upd of #1)
3 0 1449358 -20.349/-174.81 5.5 39.1 4.17 20 Jun 2022 12:40 1d 00:50 (upd of #2)
4 0 1449358 -20.349/-174.81 5.5 39.1 4.796 27 Jun 2022 06:52 7d 19:02 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Tonga Tonga 37000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Pangai Tonga Village 1700 people 76 km
Kolonga Tonga Village - 92 km
Niutoua Tonga Village - 92 km
Nuku'alofa Tonga Capital 24000 people 97 km
Mua Tonga Village - 98 km
Fatumu Tonga Village - 100 km
Nukunuku Tonga Village - 101 km
Foui Tonga Village - 101 km
Pea Tonga Village - 101 km
Houma Tonga Village - 104 km
Fuaamotu Tonga Village - 107 km
Ohonua Tonga Village 1200 people 111 km

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Haapai HPA 12 Civ. Unpaved Yes 3900 80 km
Fua'amotu International TBU 38 Civ. Paved Yes 8700 105 km
Eua Kaufana EUA unknown 0 115 km

Ports

Intensity Name LOCODE Country Distance
Pangai TOPAN Tonga 77 km
Nuku'alofa TOTBU Tonga 96 km
Eua Island Tonga 113 km

More information

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