M 5.4 in Tonga on 20 Apr 2017 22:59 UTC

Event summary

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

GDACS ID EQ 1110762
Earthquake Magnitude: 5.4M
Depth: 10 Km
Lat/Lon: -20.5682 , -173.6444
Event Date: 20 Apr 2017 22:59 UTC
20 Apr 2017 10:59 Local
Exposed Population:
Few people within 100km
Inserted at: 20 Apr 2017 23:18 UTC
INFORM Coping capacity:
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us10008jeq Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 175 | About casualties: 4 | Last hour: 0

4:09 Chilenos monitoram atividade sísmicaMon, 24 Apr 2017 22:17:00 +0200.

24 de abril de 2017, 16:09 Santiago do Chile, 24 abr (Prensa Latina) O Centro Sismológico da Universidade do Chile monitora hoje a sequência de tremores que desde a noite do sábado mantém os habitantes de Valparaíso em alerta. Sergio Barri
...(more)
Warga Aceh Jangan Panik, 26 April akan Ada Tes Sirine TsunamiMon, 24 Apr 2017 21:29:00 +0200.

Banda Aceh - Badan Penanggulangan Bencana Aceh (BPBA) akan membunyikan sirine tsunami pada 26 April mendatang sebagai ujicoba. Masyarakat diimbau tidak panik dan tetap melakukan aktivitas seperti biasa. Ada enam sirine yang dibunyikan denga
...(more)
Expertos llaman a la precaución ante seguidilla de sismos en zona cent ... Mon, 24 Apr 2017 20:58:00 +0200.

Al ser consultado sobre si pueden ser precursores de un sismo mayor, el director del CSN, Sergio Barrientos , respondió que "es muy difícil responder a esa pregunta a ciencia cierta. Tenemos el caso, por ejemplo, con el terremoto de Iquique
...(more)
Onemi realizará prueba técnica de sirenas por tsunami en el borde cost ... Mon, 24 Apr 2017 20:49:00 +0200.

sirenas en el borde costero el próximo martes 2 de mayo. Una prueba técnica que consiste en sonido y voz del Sistema de Alarma de Tsunami se activará desde el Centro de Alerta Temprana (CAT) de la Dirección Regional de la Onemi el próximo m
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (41), (3), NEIC (4), OCHA (1), INGV (1), WMO (1), INFORM (2), USGS (2),