M 5.5 in Tonga on 17 Jul 2021 03:23 UTC

Event summary

This earthquake can have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID EQ 1277527
Earthquake Magnitude: 5.5M
Depth: 559.13 Km
Lat/Lon: -20.6238 , -178.3804
Event Date: 17 Jul 2021 03:23 UTC
16 Jul 2021 15:23 Local
Exposed Population:
About 900 people within 100km
Inserted at: 17 Jul 2021 03:42 UTC
INFORM Coping capacity : 1.1 (Tonga)


For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000emsw Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2021. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

No content available ..

Tonga: Magnitude-5.4 offshore earthquake strikes near Tonga July 182021-07-18T05:10+0200.

Event. A magnitude-5.4 offshore earthquake occurred near Tonga at 13:36 July 18. The epicenter was about 215 km (134 miles) north of Nuku'alofa. The tremor occurred at a depth of about 211 km (131 miles), and light shaking likely occurred i
Pacific Ocean: Magnitude-5.4 earthquake occurs northeast of Neiafu, To ... 2021-07-16T14:35+0200.

Event. A magnitude-5.4 earthquake occurred in the Pacific Ocean northeast of Vava'u Island, Tonga at 23:02 July 16. The epicenter was about 139 km (86 miles) northeast of Neiafu, Tonga. The tremor occurred at a depth of about 10 km (6 miles

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (39), (2), NEIC (4), OCHA (1), INGV (1), WMO (1), USGS (2), INFORM (2),