Overall Green Earthquake alert in Indonesia on 31 Dec 2021 03:55 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 4.5 in Indonesia on 31 Dec 2021 03:55 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:	-1.4937 , 127.362
Event Date:	31 Dec 2021 03:55 UTC 31 Dec 2021 12:55 Local
Exposed Population:	50 thousand in 100km
Source:	NEIC us7000g83x
Inserted at:	31 Dec 2021 04:13 UTC
INFORM Coping capacity of the alert score	4.8 (Indonesia)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us7000g83x	Scaled population (vector)	4.86
	C1 earthquake	1.54
	C2 earthquake	-0.64
	Country Vulnerability	0.09
	INFORM_normalised	0.96

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1418898		0	31 Dec 2021 03:55	4.5M, 10km	N/A	50 thousand (in 100km)		00:17	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 Indonesia , Province of Maluku (population 1,991,398) . The nearest places are Kawassi, Laiwui, Woi Lower, Kapala Bugja, Fluk, Sesepe, and Wui.

Radius	Population
100 km	53000 people
75 km	23000 people
50 km	21000 people
20 km	3400 people
10 km	<1000 people
5 km	<1000 people
2 km	<1000 people

Affected Provinces

Region Province	Country	Population
Maluku	Indonesia	2 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Kawassi	Maluku Utara	Indonesia	Village	-	10 km
Laiwui	Maluku Utara	Indonesia	Village	-	34 km
Woi Lower	Maluku Utara	Indonesia	Village	-	36 km
Kapala Bugja	Maluku Utara	Indonesia	Village	-	43 km
Fluk	Maluku Utara	Indonesia	Village	-	49 km
Sesepe	Maluku Utara	Indonesia	Village	-	68 km
Wui	Maluku Utara	Indonesia	Village	-	69 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
Labuha	LAH	unknown				0	98 km

Ports

Name	LOCODE	Country	Distance
Laiwui		Indonesia	35 km
Labuha	IDLAH	Indonesia	95 km

More information

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

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