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: 14 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 23:59 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 0.3 0.5 0.5
us1000hhb1 Scaled population (vector) 2.65 Max wave alert 0.12m  
  C1 shakemap -0.59 Max wave realtime 0.54m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  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  0.1m in Skinaria, Greece. This height is estimated for 25-Oct-2018 22:58:14.

Alert Date (UTC) Name Country Tsunami wave height (m)
25-Oct-2018 22:58:14 Skinaria Greece  0.1
25-Oct-2018 23:02:99 Loutraki Aitolia kai Acamania Greece  0.1
26-Oct-2018 00:05:86 Villaggio Turistico Alimini Italy  0.1
25-Oct-2018 22:57:14 Sakynthos Greece  0.1
26-Oct-2018 00:12:42 Levkas Greece  0.1
25-Oct-2018 23:57:75 Poros Greece  0.1
25-Oct-2018 23:00:23 Ayia Evfimia Greece  0.1
25-Oct-2018 23:08:56 Preveza Greece  0.1
25-Oct-2018 23:30:85 Argostoli Greece  0.1
25-Oct-2018 23:24:78 Asos Greece  0.1
25-Oct-2018 23:06:51 Kastrosikia Greece  0.1
25-Oct-2018 23:22:91 Koronisia Greece  0.1
25-Oct-2018 23:11:32 Elia Messinia Greece  0.1
25-Oct-2018 23:51:14 Fiskardhon Greece  0.1
26-Oct-2018 00:03:26 Roca Vecchia Italy  0.1
26-Oct-2018 00:11:27 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: 14 km

Calculation parameters

  • Calculation space (lon/lat): 17.563, 34.506, 23.563, 40.506
  • 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.