M 4.7 in Mayotte on 18 Sep 2018 23:37 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: 4.7M
Depth: 10 Km
Lat/Lon: -12.7695 , 45.3734
Event Date: 18 Sep 2018 23:37 UTC
19 Sep 2018 02:37 Local
Exposed Population:
210000 people within 100km
Source: NEIC us2000hgw5
Inserted at: 18 Sep 2018 23:55 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us2000hgw5 Scaled population (vector) 6.06  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1228852 0 18 Sep 2018 23:37 4.7M, 10km N/A 220 thousand (in 100km) 00:18 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 Mayotte , of Mayotte. The nearest places are Dzaoudzi, Mamoudzou, Longoni, Dembeni, Bandele, Chingoni, Dzoumogne, Sada, Moliha, Dapani, and Cani.

Radius Population
100 km 220000 people
75 km 220000 people
50 km 220000 people
20 km 90000 people
10 km 1100 people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Mayotte Mayotte -

Affected populated places

Name Region Province Country City class Population Distance
Dzaoudzi Mayotte Village 14000 people 10 km
Mamoudzou Mayotte Capital 55000 people 17 km
Longoni Mayotte Village - 20 km
Dembeni Mayotte Village 7300 people 22 km
Bandele Mayotte Village - 26 km
Chingoni Mayotte Village - 27 km
Dzoumogne Mayotte Village - 29 km
Sada Mayotte Village 9600 people 30 km
Moliha Mayotte Village - 31 km
Dapani Mayotte Village - 31 km
Accua Mayotte Village - 35 km
Cani Mayotte Village - 36 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
Dzaoudzi Pamanzi DZA 8 Civ. Paved Yes 6000 11 km

Ports

Name LOCODE Country Distance
Zaudzi Mayotte 12 km
Dzaoudzi YTDZA Mayotte 17 km

More information

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