M 5.9 in China on 18 Dec 2023 15:59 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

This earthquake is expected to have a high humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 5.9M
Glide number: EQ-2023-000252-CHN
Depth: 10 Km
Lat/Lon: 35.7432 , 102.8272
Event Date: 18 Dec 2023 15:59 UTC
18 Dec 2023 23:59 Local
Exposed Population: 100 thousand (in MMI>=VII)
Source: NEIC us7000ljvg
Inserted at: 18 Dec 2023 16:41 UTC
INFORM Coping capacity of the alert score: 3.6 (China)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 1.9 1.9
us7000ljvg Scaled population (raster) 3.59  
  C1 rapid impact -0.37  
  C2 rapid impact 0.76  
  Country Vulnerability 0  
  INFORM_normalised 0.82  
Maximum expected impact using different data sources.

The green area correspond to areas affected by strong shaking (MMI VI or higher) according to the simulation.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1543047 2 18 Dec 2023 15:59 6M, 10km 7.06 90 thousand (in MMI>=VII) N/A 00:19 NEIC
1543048 1.9 18 Dec 2023 15:59 5.9M, 10km 6.94 60 thousand (in MMI>=VII) N/A 00:42 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.

Rapid Impact

The results presented below are calculated with the ShakeMap open source software (USGS) using only earthquake hypocenter information to provide a rapid estimation of the ground motion and shaking intensity without taking into account any instrumental observations or earthquake source scaling laws.

Exposed population

The earthquake happened in China ,of Qinghai (population 4,938,862) . The alertlevel for this event is ORANGE

Intensity Population
61000 people
180000 people
850000 people

Affected Provinces

Intensity Region Province Country Population
Qinghai China 15000 people
Gansu China 66000 people
Qinghai China 89000 people
Gansu China 83000 people
Qinghai China 180000 people
Gansu China 640000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Ching-shui-kung Qinghai China Village - 28 km
Linxia Gansu China City 200000 people 38 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Dams

Intensity Reservoir Dam Name River Year Distance
Jishixia Yellow 2011 14 km

More information

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