Overall Green Earthquake alert in Indonesia on 31 Dec 2020 10:49 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 4.9 in Indonesia on 31 Dec 2020 10:49 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:	4.9M
Depth:	22.79 Km
Lat/Lon:	0.3009 , 97.5638
Event Date:	31 Dec 2020 10:49 UTC 31 Dec 2020 17:49 Local
Exposed Population:	660000 people within 100km
Source:	NEIC us6000d4j4
Inserted at:	31 Dec 2020 11:07 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
us6000d4j4	Scaled population (vector)	5.49
	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
1350681		0	31 Dec 2020 10:49	4.9M, 22.79km	N/A	670 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 Indonesia , Province of Sumatera Utara (population 9,319,344) . The nearest places are Telukdalam, Hilifalawo, Hilinamaniha, Hilihoja, Hiliobolata, Hinako, and Botohili.

Radius	Population
100 km	670000 people
75 km	370000 people
50 km	63000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Sumatera Utara	Indonesia	9.3 million people
Sumatera Barat	Indonesia	4.3 million people
Aceh	Indonesia	4.3 million people
Riau	Indonesia	3.5 million people
Jambi	Indonesia	2.2 million people
Bengkulu	Indonesia	1.3 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Telukdalam	Sumatera Utara	Indonesia	Village	-	40 km
Hilifalawo	Sumatera Utara	Indonesia	Village	-	46 km
Hilinamaniha	Sumatera Utara	Indonesia	Village	-	51 km
Hilihoja	Sumatera Utara	Indonesia	Village	-	58 km
Hiliobolata	Sumatera Utara	Indonesia	Village	-	61 km
Hinako	Sumatera Utara	Indonesia	Village	-	64 km
Botohili	Sumatera Utara	Indonesia	Village	-	66 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
Binaka		6				0	97 km

Ports

Name	LOCODE	Country	Distance
Telukdalem		Indonesia	39 km
Telo		Indonesia	88 km

More information

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

Disclaimer
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