M 6.6 in Greece on 12 Oct 2021 09:24 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: 6.6M
Depth: 10 Km
Event Date: 12 Oct 2021 09:24 UTC
12 Oct 2021 11:24 Local
Exposed Population: 90 thousand in 100km
Source: GEOFON gfz2021tzpm
Inserted at: 18 Oct 2021 15:18 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
GEOFON 0 0.3 0.3
gfz2021tzpm Scaled population (vector) 4.82 Max wave alert 0.31m  
  C1 earthquake 1 Max wave realtime 0.31m  
  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
1401763 0.3 12 Oct 2021 09:24 6.6M, 10km N/A 90 thousand (in 100km) 0.3m (at 00:12) 6d 05:54 GEOFON
1401766 0.8 12 Oct 2021 09:24 6.4M, 10km 8.28 20 thousand (in MMI>=VII) 0.1m (at 00:07) 6d 05:54 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 Wave height is  0.3m in Gaidhouras, Greece. This height is estimated for 12-Oct-2021 09:36:35.

Alert Date (UTC) Name Country Wave height (m)
12-Oct-2021 09:36:35 Gaidhouras Greece  0.3
12-Oct-2021 09:33:86 Kato Zakros Greece  0.2
12-Oct-2021 09:36:86 Makriyialos Greece  0.2
12-Oct-2021 09:39:16 Ayia Marina Greece  0.2
12-Oct-2021 09:47:43 Arkasa Greece  0.1
12-Oct-2021 09:41:27 Karpathos Greece  0.1
12-Oct-2021 10:02:05 Vai Greece  0.1
12-Oct-2021 09:38:35 Palaikastron Greece  0.1
12-Oct-2021 09:36:51 Koutsounara Greece  0.1
12-Oct-2021 10:13:02 Ayia Fotia Greece  0.1
12-Oct-2021 09:46:07 Myrtos Greece  0.1
12-Oct-2021 09:46:07 Ammoudharai Greece  0.1
12-Oct-2021 09:46:07 Ierapetra Greece  0.1
12-Oct-2021 09:54:76 Kato Vigles Greece  0.1
12-Oct-2021 10:00:32 Siteia Greece  0.1
12-Oct-2021 09:53:72 Skopi Greece  0.1
12-Oct-2021 09:57:15 Lakhania Greece  0.1

See full locations list (RSS)


Initial conditions

Title: ""M6.6 Crete, Greece""

Fault parameters

  • Latitude: 34.88
  • Longitude: 26.4
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 184 (geogr angle: north=0, south=180)
  • Dip: 25 degree
  • Rake: 262 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): 24.9, 33.38, 27.9, 36.38
  • 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.