M 4.7 in Laos on 31 Dec 2021 14:53 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: 4.7M
Depth: 10 Km
Lat/Lon: 22.2358 , 101.7114
Event Date: 31 Dec 2021 14:53 UTC
31 Dec 2021 21:53 Local
Exposed Population:
1.2 million in 100km
Source: NEIC us7000g86b
Inserted at: 01 Jan 2022 05:32 UTC
INFORM Coping capacity of the alert score
6.4 (Myanmar)
INFORM Coping capacity of the affected contries: Myanmar= 6.4; Laos= 6.2; Vietnam= 4.2; China= 3.6

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000g86b Scaled population (vector) 5.83  
  C1 earthquake 0.89  
  C2 earthquake -0.28  
  Country Vulnerability -0.47  
  INFORM_normalised 1.15  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1419023 0 31 Dec 2021 14:53 4.7M, 10km N/A 1.2 million (in 100km) 14:39 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 Laos , Province of Phongsali (population 160,823) . The nearest places are Ban Khasela, Phou Neua, Ban Hoi Va, Ban Kheu, Ou Neua, Moung Ou Tai, Sin Chai, Ban Sinan, Lo Pou Ho, Lan Toui, and Giang Muang Pho.

Radius Population
100 km 1.2 million people
75 km 430000 people
50 km 170000 people
20 km 16000 people
10 km 2100 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Phongsali Laos 160000 people
Yunnan China 41 million people

Affected populated places

Name Region Province Country City class Population Distance
Ban Khasela Phongsaly Laos Village - 7 km
Phou Neua Phongsaly Laos Village - 9 km
Ban Hoi Va Phongsaly Laos Village - 9 km
Ban Kheu Phongsaly Laos Village - 10 km
Ou Neua Phongsaly Laos Village - 12 km
Moung Ou Tai Phongsaly Laos Village - 15 km
Sin Chai Phongsaly Laos Village - 21 km
Ban Sinan Phongsaly Laos Village - 22 km
Lo Pou Ho Phongsaly Laos Village - 23 km
Lan Toui Phongsaly Laos Village - 23 km
La Mouay Sang Phongsaly Laos Village - 24 km
Cheng-t'ung Yunnan China Village - 25 km
Lao Sa Chaï Phongsaly Laos Village - 31 km
Ta Fou San Phongsaly Laos Village - 31 km
Bo Ké Phongsaly Laos Village - 31 km
I-pang Yunnan China Village - 33 km
Chen-yüeh Yunnan China Village - 33 km
A Kha Poun Pong Phongsaly Laos Village - 33 km
Chu-peng-chai Yunnan China Village - 34 km
Ya Kao Chai Phongsaly Laos Village - 34 km
Chen-yüeh-hsien Yunnan China Village - 38 km
Sop Pong Phongsaly Laos Village - 39 km
Chiang-cheng Yunnan China City - 40 km
Hoang Lao Sene Phongsaly Laos Village - 43 km
Ban Khapousa Phongsaly Laos Village - 43 km
Ban Kha Pou Phongsaly Laos Village - 46 km
Qiaotouhe Yunnan China Village - 48 km
Meng-wang Yunnan China City - 49 km
Po Khoa Chay Phongsaly Laos Village - 50 km
Ngay Nua Phongsaly Laos Village - 50 km
Ban Tang Phongsaly Laos Village - 53 km
Chang Tong Phongsaly Laos Village - 54 km
Meng-Him Yunnan China Village - 55 km
Á Pà Chai Lai Chau Vietnam Village - 55 km
Meng-pan Yunnan China Village - 56 km
Lo-sa Yunnan China Village - 56 km
Huangcaoba Yunnan China Village - 58 km
Yaoqu Yunnan China Village - 58 km
Hsiao-meng-lun Yunnan China Village - 59 km
Wang-chieh Yunnan China Village - 61 km
Muang Hat Hin Phongsaly Laos Village - 61 km
Pay Chô Phongsaly Laos Village - 61 km
Mengyuan Yunnan China Village - 62 km
Man-ya Yunnan China Village - 63 km
Cha Kham Sen Phongsaly Laos Village - 63 km
Chiang-hsi Yunnan China Village - 66 km
Banpo Yunnan China Village - 68 km
Boun Neua Phongsaly Laos Village - 69 km
Lao-ma-chai Yunnan China Village - 70 km
Giang Muang Pho Lai Chau Vietnam Village - 70 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
Boun Neua 925 0 70 km
Mengla 701 0 88 km
Zheli Airfield P 60 0 96 km
Simao North 1303 0 99 km
Simao SYM unknown 0 99 km

More information

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