Overall Green Earthquake alert in Tonga on 23 Dec 2018 23:08 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.4 in Tonga on 23 Dec 2018 23:08 UTC

The list of all calculations completed triggered by the system and users referred to event
M6.4 in Tonga, on 23 Dec 2018 23:08 UTC

Type	Delay	Mag	Depth (km)	Lat	Lon
realtime	8 m	6.5	105.9	-20.456	-174.88
realtime	8 m	6.5	105.9	-20.456	-174.88
realtime	11 m	6.5	100	-20.5	-174.9
realtime	11 m	6.5	100	-20.5	-174.9
realtime	18 m	6.4	100.17	-20.3749	-175.0925
realtime	18 m	6.4	100.17	-20.3749	-175.0925

Tsunami affected locations

Initial conditions

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