M 5.5 in Madagascar on 11 Jan 2017 22:06 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: 5.5M
Depth: 8.7 Km
Lat/Lon: -20.1581 , 46.6332
Event Date: 11 Jan 2017 22:06 UTC
12 Jan 2017 01:06 Local
Exposed Population: About 27000 people in MMI
2350000 people within 100km
Source: NEIC us10007snb
Inserted at: 11 Jan 2017 23:06 UTC
INFORM Coping capacity of the alert score
7.6 (Madagascar)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
us10007snb Scaled population (vector) 0  
  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
1153694 1 11 Jan 2017 22:07 5.4M, 14.61km N/A 2.4 million (in 100km) 00:20 NEIC
1153698 0.5 11 Jan 2017 22:06 5.5M, 8.7km N/A N/A (in MMI>=VII) 00:59 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 Madagascar , Province of Antananarivo (population 4,345,103) . The nearest places are Antananolofotsy, Ambalafeno, Ambohitsara, Vatogana, Ampano, Amboniandrefana, Landraina, Vohitrakanga, Marotsingala, Antsangandrano, and Amparihimanga.

Radius Population
100 km 2.4 million people
75 km 1.2 million people
50 km 270000 people
20 km 25000 people
10 km 7700 people
5 km 2600 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Antananarivo Madagascar 4.3 million people
Fianarantsoa Madagascar 2.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Antananolofotsy Antananarivo Madagascar Village - 2 km
Ambalafeno Antananarivo Madagascar Village - 6 km
Ambohitsara Antananarivo Madagascar Village - 7 km
Vatogana Antananarivo Madagascar Village - 9 km
Ampano Antananarivo Madagascar Village - 11 km
Amboniandrefana Antananarivo Madagascar Village - 11 km
Landraina Antananarivo Madagascar Village - 13 km
Vohitrakanga Antananarivo Madagascar Village - 13 km
Marotsingala Antananarivo Madagascar Village - 15 km
Antsangandrano Fianarantsoa Madagascar Village - 17 km
Andranovory Fianarantsoa Madagascar Village - 21 km
Ampopo Antananarivo Madagascar Village - 21 km
Lazarivo Antananarivo Madagascar Village - 22 km
Malo Antananarivo Madagascar Village - 23 km
Anjanina Fianarantsoa Madagascar Village - 23 km
Lavidrano Antananarivo Madagascar Village - 25 km
Ambalavato Antananarivo Madagascar Village - 26 km
Antanimasaka Antananarivo Madagascar Village - 26 km
Mandrohimanga Fianarantsoa Madagascar Village - 26 km
Atsimondraiketa Antananarivo Madagascar Village - 26 km
Mamiasa Fianarantsoa Madagascar Village - 27 km
Miarinatsima Antananarivo Madagascar Village - 27 km
Ambohidaza Fianarantsoa Madagascar Village - 29 km
Mahazoarivo Antananarivo Madagascar Village - 31 km
Marinkimbizo Antananarivo Madagascar Village - 32 km
Ambatomifanongoa Fianarantsoa Madagascar Village - 32 km
Ivato Antananarivo Madagascar Village - 32 km
Vatolahy Antananarivo Madagascar Village - 33 km
Ranofotsy Fianarantsoa Madagascar Village - 33 km
Mahaiza Antananarivo Madagascar Village - 33 km
Betaimboraka Fianarantsoa Madagascar Village - 34 km
Ampopoha Antananarivo Madagascar Village - 35 km
Moronarivo Antananarivo Madagascar Village - 36 km
Ambohimahatsinjo Fianarantsoa Madagascar Village - 36 km
Antsaminjaza Antananarivo Madagascar Village - 36 km
Maharivo Fianarantsoa Madagascar Village - 36 km
Miarinavaratra Antananarivo Madagascar Village - 37 km
Firavahana Antananarivo Madagascar Village - 38 km
Manimroa Fianarantsoa Madagascar Village - 38 km
Ambahy Fianarantsoa Madagascar Village - 38 km
Ambohimanambola Antananarivo Madagascar Village - 39 km
Soavina Fianarantsoa Madagascar Village - 39 km
Riampotsy Fianarantsoa Madagascar Village - 39 km
Isaka Fianarantsoa Madagascar Village - 39 km
Soavina Antanety Antananarivo Madagascar Village - 41 km
Alakamisy Antananarivo Madagascar Village - 41 km
Manakambinany Fianarantsoa Madagascar Village - 41 km
Mangarano Antananarivo Madagascar Village - 42 km
Andranomafana Antananarivo Madagascar Village - 42 km
Tsitombonana Fianarantsoa Madagascar Village - 42 km
Ambalamarina Antananarivo Madagascar Village - 42 km
Andranjomanga Antananarivo Madagascar Village - 42 km
Betafo Antananarivo Madagascar Village 29000 people 43 km
Marosahona Fianarantsoa Madagascar Village - 43 km
Ambohimanatahotra Fianarantsoa Madagascar Village - 44 km
Ambola Antananarivo Madagascar Village - 44 km
Vohimena Fianarantsoa Madagascar Village - 44 km
Marerano Fianarantsoa Madagascar Village - 44 km
Manandona Antananarivo Madagascar Village - 45 km
Ambohimandroso Antananarivo Madagascar Village - 46 km
Ankazomainty Antananarivo Madagascar Village - 47 km
Ambatofinandrahana Fianarantsoa Madagascar Village 26000 people 47 km
Tsarafanary Fianarantsoa Madagascar Village - 48 km
Ambohidrano Antananarivo Madagascar Village - 48 km
Sambalahy Fianarantsoa Madagascar Village - 48 km
Amby Fianarantsoa Madagascar Village - 48 km
Malakialina Fianarantsoa Madagascar Village - 48 km
Vinanikarena Antananarivo Madagascar Village - 48 km
Vohipeno Nord Antananarivo Madagascar Village - 48 km
Ambohimanjaka Fianarantsoa Madagascar Village - 48 km
Mangataboahangy Fianarantsoa Madagascar Village - 48 km
Tsarahasina Antananarivo Madagascar Village - 48 km
Itremo Fianarantsoa Madagascar Village - 48 km
Androtrakely Antananarivo Madagascar Village - 49 km
Ambohimiarina Antananarivo Madagascar Village - 49 km
Ambalavabe Fianarantsoa Madagascar Village - 49 km
Maritampona Antananarivo Madagascar Village - 50 km
Antsahabe Antananarivo Madagascar Village - 50 km
Valona Antananarivo Madagascar Village - 51 km
Ankafotra Fianarantsoa Madagascar Village - 51 km
Mahazina Antananarivo Madagascar Village - 51 km
Andondona Fianarantsoa Madagascar Village - 52 km
Menavato Fianarantsoa Madagascar Village - 52 km
Mahatsanda Fianarantsoa Madagascar Village - 52 km
Ambohidramanalina Antananarivo Madagascar Village - 52 km
Antsirabe Antananarivo Madagascar City 150000 people 53 km
Amboditsiho Fianarantsoa Madagascar Village - 53 km
Ambatolahy Fianarantsoa Madagascar Village - 53 km
Betsipoy Antananarivo Madagascar Village - 53 km
Lavokobe Antananarivo Madagascar Village - 55 km
Tanetibe Fianarantsoa Madagascar Village - 55 km
Ambatofangehana Fianarantsoa Madagascar Village - 55 km
Tsiafahy Antananarivo Madagascar Village - 55 km
Tsiafamakamba Fianarantsoa Madagascar Village - 55 km
Anapina Fianarantsoa Madagascar Village - 56 km
Andohanankivoka Antananarivo Madagascar Village - 56 km
Manaovasoa Antananarivo Madagascar Village - 56 km
Antambiazona Antananarivo Madagascar Village - 56 km
Inanantonana Antananarivo Madagascar Village - 56 km
Tsarazaza Antananarivo Madagascar Village - 56 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
Antsirabe ATJ 1523 Civ. Unpaved No 4900 58 km

More information

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