M 4.2 in Iceland on 20 Sep 2012 09:27 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

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

Updated: this report is based on episode 1.

Earthquake Magnitude: 4.2M
Depth: 1 Km
Lat/Lon: 66.46 , -18.82
Event Date: 20 Sep 2012 09:27 UTC
20 Sep 2012 08:27 Local
Exposed Population:
About 26000 people within 100km
Source: EMSC
Inserted at: 20 Sep 2012 14:26 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 0.5 0.5
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
119736 0.5 20 Sep 2012 09:27 4.3M, 8km N/A 20 thousand (in 100km) 00:06 EMSC
119737 0.5 20 Sep 2012 09:27 4.1M, 8km N/A 30 thousand (in 100km) 00:09 EMSC
119740 0.5 20 Sep 2012 09:27 4.2M, 1km N/A 30 thousand (in 100km) 04:59 EMSC
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.

Exposed population

The earthquake happened in Iceland , Region of Nordhurland Eystra (population 29,967) . The nearest places are Miðgarðar, Hvanneyri, Thönglabakki, Flatey, Vík, Siglufjordhur, Brettingsstadhir, Ólafsfjörður, Upsir, Kvíabekkur, and Bardh.

Radius Population
100 km 25000 people
75 km 6600 people
50 km <1000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Nordhurland Eystra Iceland 30000 people
Nordhurland Vestra Iceland 12000 people
Austurland Iceland 15000 people
Vestfirdhir Iceland 12000 people
Vesturland Iceland 17000 people
Sudhurland Iceland 23000 people
Reykjavik Iceland 160000 people
Ostgronland Greenland 2600 people

Affected populated places

Name Region Province Country City class Population Distance
Miðgarðar Iceland Village - 17 km
Hvanneyri Iceland Village - 46 km
Thönglabakki Iceland Village - 46 km
Flatey Iceland Village - 49 km
Vík Iceland Village - 49 km
Siglufjordhur Iceland City - 51 km
Brettingsstadhir Iceland Village - 53 km
Ólafsfjörður Iceland Village 1000 people 55 km
Upsir Iceland Village - 60 km
Kvíabekkur Iceland Village - 61 km
Haganes Iceland Village - 63 km
Hrisey Iceland Village - 64 km
Dalvík Iceland Village 1500 people 64 km
Hrappstadhakot Iceland Village - 67 km
Hallbjarnarstadhir Iceland Village - 67 km
Hallbjarnarstaðir Iceland Village - 68 km
Litli-Árskógssandur Iceland Village - 68 km
Grenivík Iceland Village - 68 km
Bardh Iceland Village - 69 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Grimsey GRY 25 0 16 km
Olafsfjordur OFJ unknown 0 51 km
Siglufjordhur SIJ 3 Civ. Unpaved Yes 3500 52 km
Husavik HZK 15 Civ. Unpaved Yes 5200 79 km
Kopasker OPA 6 0 90 km
Akureyri AEY 2 Civ. Paved Yes 6300 100 km

Ports

Name LOCODE Country Distance
Siglufjord ISSIG Iceland 48 km
Siglufjorhur ISSIG Iceland 52 km
Olafsfjorhur Iceland 53 km
Husavik Iceland 73 km
Hjalteyri Iceland 79 km
Kopasker Iceland 92 km
Akureyri ISAKU Iceland 98 km

More information

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