M 4.8 in Viet Nam on 27 Jul 2020 05:14 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: 4.8M
Depth: 10 Km
Lat/Lon: 20.8717 , 104.5406
Event Date: 27 Jul 2020 05:14 UTC
27 Jul 2020 12:14 Local
Exposed Population:
3550000 people within 100km
Source: NEIC us6000b4kv
Inserted at: 27 Jul 2020 05:34 UTC
INFORM Coping capacity of the alert score
6.2 (Laos)
INFORM Coping capacity of the affected contries: Laos= 6.2; Vietnam= 4.2

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.3 0.3
us6000b4kv Scaled population (vector) 6.41  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1.13  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1323541 0.3 27 Jul 2020 05:14 4.8M, 10km N/A 3.6 million (in 100km) 00:19 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 Viet Nam , Province of Son La (population 784,887) . The nearest places are Chiêng Pan, Nâ Phay, Ban Suoi Bao, Ba Kenn, Tú Nang, Ba Duoc, Ban Pa Khôm, Ban Cang, Ban Suoi O, Ban Nam Cao, and Muong Minh.

Radius Population
100 km 3.6 million people
75 km 1.3 million people
50 km 530000 people
20 km 120000 people
10 km 28000 people
5 km 9100 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Son La Viet Nam 780000 people
Houaphan Laos 280000 people

Affected populated places

Name Region Province Country City class Population Distance
Chiêng Pan Son La Vietnam Village - 5 km
Nâ Phay Son La Vietnam Village - 13 km
Ban Suoi Bao Houaphan Laos Village - 13 km
Ba Kenn Son La Vietnam Village - 13 km
Tú Nang Son La Vietnam Village - 16 km
Ba Duoc Son La Vietnam Village - 18 km
Ban Pa Khôm Son La Vietnam Village - 19 km
Ban Cang Son La Vietnam Village - 22 km
Ban Suoi O Son La Vietnam Village - 24 km
Ban Nam Cao Houaphan Laos Village - 25 km
Thâ Leinh Son La Vietnam Village - 26 km
Pa Lao Son La Vietnam Village - 26 km
Sôp Long Houaphan Laos Village - 26 km
Muang Hôm Houaphan Laos Village - 27 km
Ban Tian Son La Vietnam Village - 27 km
Ban Co Kien Houaphan Laos Village - 27 km
Van Yên Son La Vietnam Village - 28 km
Ban Nghè Son La Vietnam Village - 29 km
Ban Suoi Noi Son La Vietnam Village - 31 km
Ban Bua Trong Son La Vietnam Village - 33 km
Ban Lah Son La Vietnam Village - 33 km
Ban Hinh Son La Vietnam Village - 34 km
Ban Sapiet Son La Vietnam Village - 34 km
Ban Bau Houaphan Laos Village - 37 km
Muong Lat Thanh Hoa Vietnam Village - 37 km
Ban Bay Houaphan Laos Village - 39 km
Ban Ban Son La Vietnam Village - 40 km
Ban Tat Houaphan Laos Village - 40 km
Lang Moc Son La Vietnam Village - 40 km
Som Mong Son La Vietnam Village - 41 km
Ban Cho Lung Son La Vietnam Village - 41 km
Ban Na San Thanh Hoa Vietnam Village - 43 km
Ba Dao Son La Vietnam Village - 43 km
Muang Bang Hoa Binh Vietnam Village - 44 km
Ban Houei Nhien Son La Vietnam Village - 44 km
Ban Pho Son La Vietnam Village - 44 km
Muang Ly Thanh Hoa Vietnam Village - 45 km
Ban Chen Son La Vietnam Village - 45 km
Ban Suoi Yuc Hoa Binh Vietnam Village - 45 km
Ban Suoi Hang Son La Vietnam Village - 46 km
Ban Loup Houaphan Laos Village - 47 km
Ban Mat Son La Vietnam Village - 49 km
Quan Ha Hoa Binh Vietnam Village - 49 km
Ban Suoi Nhon Hoa Binh Vietnam Village - 50 km
Ban Ca Son La Vietnam Village - 51 km
Ban Co Cang Son La Vietnam Village - 51 km
Ban Poung Houaphan Laos Village - 51 km
Ban Na Ao Houaphan Laos Village - 51 km
Ban Poun Song Houaphan Laos Village - 51 km
Ban Bo Houaphan Laos Village - 53 km
Ban Lao Xan Son La Vietnam Village - 54 km
Muang Pan Houaphan Laos Village - 55 km
Ban Huon Hoa Binh Vietnam Village - 55 km
Ban Luoc Thanh Hoa Vietnam Village - 55 km
Ban Suoi Cha Phu Tho Vietnam Village - 56 km
Muong Het Houaphan Laos Village - 56 km
Suvui Son La Vietnam Village - 56 km
Xóm Tang Phu Tho Vietnam Village - 58 km
Ban Lót Son La Vietnam Village - 58 km
Ban Hang Thanh Hoa Vietnam Village - 58 km
Ban Ang Son La Vietnam Village - 60 km
Lao Phou Van Son La Vietnam Village - 60 km
Ban Bang Hoa Binh Vietnam Village - 61 km
Ky Nình Son La Vietnam Village - 61 km
Ban Nakay Teu Houaphan Laos Village - 61 km
Gieu Ca Hoa Binh Vietnam Village - 61 km
Ngòi Lao Yen Bai Vietnam Village - 61 km
Ban Tat Lo Houaphan Laos Village - 62 km
Ban Kho Houaphan Laos Village - 62 km
Na Khoang Houaphan Laos Village - 63 km
Hang Dam Phu Tho Vietnam Village - 63 km
Ban Bó Yen Bai Vietnam Village - 63 km
Ban Liu Yen Bai Vietnam Village - 63 km
Ban Bong Ngoi Yen Bai Vietnam Village - 64 km
Ban Na Mang Houaphan Laos Village - 64 km
Làng Giem Yen Bai Vietnam Village - 65 km
Xom Com Phu Tho Vietnam Village - 66 km
Làng Mát Hoa Binh Vietnam Village - 66 km
Lang Ke Man Thanh Hoa Vietnam Village - 66 km
Xóm Cua He Phu Tho Vietnam Village - 67 km
Xieng Mene Houaphan Laos Village - 67 km
Ban Nam Seu Houaphan Laos Village - 69 km
Ban Bo Thanh Hoa Vietnam Village - 69 km
Muong Minh Thanh Hoa 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
Na San SQH 625 Civ. Unpaved No 7800 65 km
Sam Neua NEU 1000 Civ. Unpaved No 3400 71 km
Houeisay HOE unknown 0 92 km

Dams

Reservoir Dam Name River Year Distance
Hoa Binh Da 1994 81 km

More information

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