M 5.5 in China on 09 Oct 2025 05:17 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 5.5M
Glide number: EQ-2025-000188-CHN
Depth: 10 Km
Lat/Lon: 30.9113 , 99.92
Event Date: 09 Oct 2025 05:17 UTC
09 Oct 2025 13:17 Local
Exposed Population: 3 thousand (in MMI>=VII)
Source: NEIC us6000rfs1
Inserted at: 09 Oct 2025 08:01 UTC
INFORM Coping capacity of the alert score
3.6 (China)

GDACS Score

For more info on GDACS score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 1 1
us6000rfs1 Scaled population (raster) 2.17  
  C1 shakemap -0.37  
  C2 shakemap 0.76  
  Country Vulnerability 0  
  INFORM_normalised 0.82  
Maximum expected impact using different data sources.

Episode Timeline

IDLevelScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1664974 1.1 09 Oct 2025 05:17 5.6M, 10km 7.56 3 thousand (in MMI>=VII) 00:17 NEIC
1664983 1 09 Oct 2025 05:17 5.5M, 10km 7.41 3 thousand (in MMI>=VII) 02:43 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

Radius Population
100 km 190000 people
75 km 74000 people
50 km 49000 people
20 km 4400 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Critical infrastructure

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

More information

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