M 6.8 in Greece on 25 Oct 2018 22:54 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 1159936
Earthquake Magnitude: 6.8M
Depth: 14 Km
Lat/Lon: 37.5055 , 20.5626
Event Date: 25 Oct 2018 22:54 UTC
25 Oct 2018 23:54 Local
Exposed Population: 230000 people within 100km
Inserted at: 25 Oct 2018 23:59 UTC
INFORM Coping capacity : 2.5 (Greece)


For more info on GDACS alert score click here.
Tsunami GDACS score
NEIC 0.3 0.5 0.5
us1000hhb1 Scaled population (vector) 2.65 Max wave alert 0.12m  
  C1 shakemap -0.59 Max wave realtime 0.12m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.69      
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Greece - 6.8 M Earthquake and Tsunami (ECHO 17 Apr 2019)Fri, 26 Oct 2018 13:01

  • An earthquake of 6.4 ML at the depth of 9.1 km according to the Institute of Geodynamics of Greece occurred in the Ionian Sea (western Greece) on 25 October at 22:54 UTC. The epicentre was located 45 km south-west of Zakynthos Town (Zakynthos Island). Shaking was estimated to be up to very strong for 5 000 people and strong for 52 000 people.
  • The earthquake triggered a small tsunami detected by several sea-level instruments in the area (0.09 m in Kyparissia and Crotone, 0.06 m in Le Castella). The European Commission's Joint Research Centre is closely monitoring the situation.
  • As of 26 October, there are no reports of casualties. Some minor damage was sustained to port infrastructure in Zakynthos, there have been problems in the electricity network and small localised landslides.
Detailed event map. European Union, 2015. 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.

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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: JRC (75), (3), NEIC (2), OCHA (1), INGV (1), WMO (2), USGS (4), INFORM (4), NOAA (1),