M 6.8 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: 6.8M
Depth: 16.55 Km
Event Date: 25 Oct 2018 22:54 UTC
25 Oct 2018 23:54 Local
Exposed Population: 230000 people within 100km
Source: NEIC us1000hhb1
Inserted at: 25 Oct 2018 23:15 UTC
INFORM Coping capacity of the alert score: 2.5 (Greece)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
Tsunami GDACS score
NEIC 0.4 0.4 0.4
us1000hhb1 Scaled population (vector) 0 Max wave alert 0.11m  
  C1 shakemap 0 Max wave realtime 0.47m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 1      
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  0.1m in Skinaria, Greece. This height is estimated for 25-Oct-2018 22:58:64.

Alert Date (UTC) Name Country Tsunami wave height (m)
25-Oct-2018 22:58:64 Skinaria Greece  0.1
25-Oct-2018 23:03:19 Loutraki Aitolia kai Acamania Greece  0.1
25-Oct-2018 22:57:86 Sakynthos Greece  0.1
25-Oct-2018 23:00:25 Ayia Evfimia Greece  0.1
25-Oct-2018 23:32:33 Argostoli Greece  0.1
25-Oct-2018 23:11:69 Elia Messinia Greece  0.1
26-Oct-2018 00:16:32 Roca Vecchia Italy  0.1
25-Oct-2018 23:07:24 Kastrosikia Greece  0.1
25-Oct-2018 23:09:21 Preveza Greece  0.1
25-Oct-2018 23:12:75 Methoni Greece  0.1
26-Oct-2018 00:11:87 Otranto Italy  0.1

See full locations list (RSS)


Initial conditions

Title: ""35km SW of Lithakia""

Fault parameters

  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 310 (geogr angle: north=0, south=180)
  • Dip: 18 degree
  • Rake: 118 degree
  • Depth: 17 km

Calculation parameters

  • Calculation space (lon/lat): 17.56, 34.478, 23.56, 40.478
  • Instead of Step -> use Cell size:.5 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.