M 5.5 Off-shore on 27 May 2023 15:21 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 1375954
Earthquake Magnitude: 5.5M
Depth: 52.948 Km
Lat/Lon: -57.9619 , -25.6537
Event Date: 27 May 2023 15:21 UTC
27 May 2023 13:21 Local
Exposed Population:
Inserted at: 29 May 2023 18:15 UTC
INFORM Coping capacity:
1.1 ()


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us7000k4gs 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.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2024. 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

Articles: 244 | About casualties: 1 | Last hour: 0

One of New Zealand’s biggest earthquakes of the year has struck the Bo ... 2023-05-31T14:25+0200.

– Gulf Hauraki weather (@GulfHauraki) May 31, 2023. In 2009, a magnitude 7.8 earthquake struck the Fjordland near the northern end of the trench, releasing 25,000 times more energy than the atomic bomb dropped on Nagasaki in 1945 and twisti
Magnitude 6.2 earthquake detected off New Zealand's south coast2023-05-31T14:14+0200.

There was no immediate tsunami warning and no reports of damage on the New Zealand mainland. The US Geological Survey on Wednesday reported a 6.2-magnitude earthquake off New Zealand's southern coast, near the mostly uninhabited Auckland
Magnitude 6.2 earthquake detected off N. Zealand’s south coast2023-05-31T13:32+0200.

by The Frontier Post AUCKLAND (AFP): The US Geological Survey on Wednesday reported a 6.2-magnitude earthquake off New Zealand’s southern coast, near the mostly uninhabited Auckland Islands. New Zealand’s GeoNet monitoring agency said th
Japon: le Parlement vote une loi prolongeant les réacteurs nucléaires ... 2023-05-31T13:26+0200.

Au Japon, le Parlement a approuvé définitivement, ce mercredi 31 mai, un projet de loi controversé étendant à plus de 60 ans la durée d'exploitation des centrales nucléaires – contre 40 années aujourd'hui. Ce projet, qui divisait le pays, a

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), USGS (5), (2), INFORM (1),