M 4.7 in Tonga on 17 May 2025 20:56 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 1482176
Earthquake Magnitude: 4.7M
Depth: 93.4 Km
Lat/Lon: -17.5867 , -174.3942
Event Date: 17 May 2025 20:56 UTC
17 May 2025 08:56 Local
Exposed Population:
Few people affected in MMI -
Inserted at: 17 May 2025 21:15 UTC
INFORM Coping capacity:
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us7000pzw8 Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 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, 2025. 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

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Moderate mag. 4.3 earthquake - 231 km W of Hihifo, Tonga, on Monday, M.. 5/19/2025 2:02:00 AM.

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Strong mag. 5.2 earthquake - 127 km north of Neiafu, Vava''u, Tonga, o.. 5/18/2025 8:25:00 AM.

An intermediate to deep magnitude 5.2 earthquake was reported in the evening near Neiafu, Vava''u, Tonga. According to the German Research Centre for Geosciences (GFZ), the quake hit on Sunday, May 18th, 2025, at 8:54 pm local time at an in
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Moderate mag. 4.7 earthquake - South Pacific Ocean, 126 km north of Ne.. 5/17/2025 9:37:00 PM.

Based on data from the past 25 years and our earthquake archive back to 1900, there are about 47 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi): Mag. 7 or higher: 0.02 quakes per year (or 1 qu
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View more news

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 (41), (3), NEIC (4), OCHA (1), INGV (1), WMO (1), INFORM (2), USGS (2),