M 5.4 in Tonga on 29 Jul 2026 00:47 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 1554764
Earthquake Magnitude: 5.4M
Depth: 10 Km
Lat/Lon: -17.8256 , -172.8179
Event Date: 29 Jul 2026 00:47 UTC
28 Jul 2026 12:47 Local
Exposed Population: 10 thousand in MMI III
Inserted at: 29 Jul 2026 01:11 UTC
INFORM Coping capacity:
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000tgje Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2026. 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

5.4-magnitude quake hits South of Tonga Islands -- GFZ 7/29/2026 9:36:00 PM.

BEIJING, July 30 (Xinhua) -- An earthquake with a magnitude of 5.4 jolted South of Tonga Islands at 2052 GMT on Wednesday, the GFZ German Research Centre for Geosciences said. The epicenter, with a depth of 10 km, was initially determined t
...(more)
5.4 magnitude quake hits South of Tonga Islands GFZ 7/29/2026 9:33:00 PM.

BEIJING, July 30 (Xinhua) -- An earthquake with a magnitude of 5.4 jolted South of Tonga Islands at 2052 GMT on Wednesday, the GFZ German Research Centre for Geosciences said. The epicenter, with a depth of 10 km, was initially determined t
...(more)
5.4-magnitude quake hits South of Tonga Islands -- GFZ 7/29/2026 9:22:00 PM.

BEIJING, July 30 (Xinhua) -- An earthquake with a magnitude of 5.4 jolted South of Tonga Islands at 2052 GMT on Wednesday, the GFZ German Research Centre for Geosciences said. The epicenter, with a depth of 10 km, was initially determined t
...(more)
5.4-magnitude quake hits South of Tonga Islands -- GFZ 7/29/2026 9:21:00 PM.

BEIJING, July 30 (Xinhua) -- An earthquake with a magnitude of 5.4 jolted South of Tonga Islands at 2052 GMT on Wednesday, the GFZ German Research Centre for Geosciences said. The epicenter, with a depth of 10 km, was initially determined t
...(more)

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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 (48), NEIC (4), OCHA (1), WMO (1), USGS (5), (2), INFORM (2),