M 6.4 in Greece on 25 Oct 2018 22:54 UTC

Event summary

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

Earthquake Magnitude: 6.4M
Depth: 5 Km
Event Date: 25 Oct 2018 22:54 UTC
25 Oct 2018 23:54 Local
Exposed Population: 240000 people within 100km
Source: NOAIG 41F00955
Inserted at: 25 Oct 2018 23:31 UTC
INFORM Coping capacity of the alert score: 2.5 (Greece)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NOAIG 0.1 0 0.1
41F00955 Scaled population (vector) 5.05 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  Country Vulnerability -0.61      
  INFORM_normalised 0.69      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1232986 0.4 25 Oct 2018 22:54 6.5M, 10km N/A 220 thousand 0.4m (at 00:07) 00:04 NOAIG
1232990 0.2 25 Oct 2018 22:54 6.7M, 10km N/A 240 thousand 0.1m (at 01:10) 00:06 GEOFON
1232995 0.4 25 Oct 2018 22:54 6.5M, 10km N/A 220 thousand 0.4m (at 00:07) 00:07 EMSC
1233000 0.4 25 Oct 2018 22:54 6.8M, 16.55km 6.91 230 thousand 0.5m (at 00:06) 00:20 NEIC
1233011 0.1 25 Oct 2018 22:54 6.4M, 5km N/A 250 thousand 0m (at 00:00) 00:36 NOAIG
1233015 0.7 25 Oct 2018 22:54 6.8M, 10km N/A 250 thousand 0.7m (at 00:05) 00:39 EMSC
1233019 0.5 25 Oct 2018 22:54 6.8M, 14km 7 230 thousand 0.5m (at 00:06) 01:04 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Tsunami affected locations

The maximum Tsunami wave height is  0.4m in Kerion, Greece. This height is estimated for 25-Oct-2018 22:59:84.

Alert Date (UTC) Name Country Tsunami wave height (m)
25-Oct-2018 22:59:84 Kerion Greece  0.4
25-Oct-2018 23:00:01 Katastarion Greece  0.3
25-Oct-2018 23:15:88 Vasiliko Greece  0.2
25-Oct-2018 23:10:42 Volimais Greece  0.1
25-Oct-2018 23:08:43 Vartholomion Greece  0.1
25-Oct-2018 23:17:75 Katakolon Greece  0.1
25-Oct-2018 23:17:75 Katakolo Greece  0.1
25-Oct-2018 23:33:31 Filiatra Greece  0.1
25-Oct-2018 23:38:63 Douneika Greece  0.1

See full locations list (RSS)


Initial conditions

Title: "M6.4 44 Km SSW from Zande"

Fault parameters

  • Length: 25 km
  • Width: 7 km
  • Magnitude: 6.4 M

Okada parameters:

  • Slip: .6 m
  • Strike: 310 (geogr angle: north=0, south=180)
  • Dip: 18 degree
  • Rake: 118 degree
  • Depth: 5 km

Calculation parameters

  • Calculation space (lon/lat): 19.111, 35.916, 22.111, 38.916
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

For a full list of available products related to this event, please refer to the GDACS Resources page.