M 4.5 in Australia on 29 Sep 2020 12:11 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.

Earthquake Magnitude: 4.5M
Depth: 10 Km
Lat/Lon: -21.0339 , 117.1499
Event Date: 29 Sep 2020 12:11 UTC
29 Sep 2020 20:11 Local
Exposed Population:
About 24000 people within 100km
Source: NEIC us6000c2il
Inserted at: 29 Sep 2020 13:30 UTC
INFORM Coping capacity of the alert score
2 (Australia)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000c2il Scaled population (vector) 4.64  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 0.63  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1335274 0 29 Sep 2020 12:11 4.5M, 10km N/A 20 thousand (in 100km) 01:18 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.

Exposed population

The earthquake happened in Australia , State of Western Australia (population 1,655,588) . The nearest places are Cooya Pooya, Woodbrook, Warrambie, Roebourne, Pyramid, Cherratta, Wickham, Cossack, Point Samson, Karratha, and East Lewis I.

Radius Population
100 km 25000 people
75 km 25000 people
50 km 21000 people
20 km <1000 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Western Australia Australia 1.7 million people

Affected populated places

Name Region Province Country City class Population Distance
Cooya Pooya Western Australia Australia Village - 1 km
Woodbrook Western Australia Australia Village - 14 km
Warrambie Western Australia Australia Village - 24 km
Roebourne Western Australia Australia Village 19000 people 29 km
Pyramid Western Australia Australia Village - 30 km
Cherratta Western Australia Australia Village - 36 km
Wickham Western Australia Australia Village - 39 km
Cossack Western Australia Australia Village - 40 km
Point Samson Western Australia Australia Village - 45 km
Karratha Western Australia Australia City 11000 people 46 km
Karratha Western Australia Australia Village - 53 km
Dampier Western Australia Australia City - 61 km
Millstream Western Australia Australia Village - 63 km
Croydon Western Australia Australia Village - 69 km
Sherlock Comstock Western Australia Australia Village - 70 km
East Lewis I Western Australia Australia Village - 70 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
Roebourne RBU unknown 0 30 km
Karratha KTA 9 Civ. Paved Yes 6000 53 km

Ports

Name LOCODE Country Distance
Port Walcott AUPWL Coral Sea Islands 37 km
Roebourne AURBU Coral Sea Islands 39 km
Point Samson AUPSM Coral Sea Islands 45 km
Withnell Bay Coral Sea Islands 60 km
Dampier AUDAM Coral Sea Islands 62 km

Dams

Reservoir Dam Name River Year Distance
Poongkaliyarra Harding Harding 1985 8 km

More information

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