M 5.5 in China on 17 Sep 2022 14:45 UTC

Hazard models

Rapid Impact
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: 5.5M
Depth: 10 Km
Lat/Lon: 22.9716 , 121.2155
Event Date: 17 Sep 2022 14:45 UTC
17 Sep 2022 22:45 Local
Exposed Population: About 3000 people in MMI
3 thousand (in MMI>=VII)
Source: NEIC us7000i8v9
Inserted at: 17 Sep 2022 15:04 UTC
INFORM Coping capacity of the alert score: 3.6 (Taiwan)

GDACS Score

For more info on GDACS score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000i8v9 Scaled population (raster) 1.51  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.82  
  Score no CC 60  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDLevelScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1462519 0 17 Sep 2022 14:45 5.5M, 10km 6.8 3 thousand (in MMI>=VII) 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 China ,of Taiwan (population 16,587) . The alertlevel for this event is GREEN

Intensity Population
<1000 people
35000 people
140000 people


Shakemaps Timeline

LevelShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1462519 22.972/121.216 5.5 10.0 6.641 17 Sep 2022 15:04 00:19 (new episode)
2 0 1462519 22.972/121.216 5.5 10.0 6.641 17 Sep 2022 15:19 00:34 (upd of #1)
3 0 1462519 22.972/121.216 5.5 10.0 6.641 17 Sep 2022 16:51 02:05 (upd of #2)
4 0 1462519 22.962/121.193 5.5 10.0 6.798 17 Sep 2022 22:10 07:25 (upd of #3)
5 0 1462519 22.962/121.193 5.5 10.0 6.798 18 Sep 2022 15:40 1d 00:55 (upd of #4)

Affected Provinces

Intensity Region Province Country Population
Taiwan China 21000 people
Taiwan China 120000 people
Taiwan China 6.4 million people
Taiwan China 4.1 million people


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Taitung TTT 37 Mil. Paved No 11000 20 km
Feng Nin 42 Civ. Paved Yes 7900 27 km
Green Island GNI 8 Civ. Paved No 3300 42 km
Pingtung North 29 Mil. Paved No 8000 81 km
Pingtung South 24 Mil. Paved Yes 7800 84 km
Kuei Jen 30 0 96 km
Highway Strip 331 334 11 0 98 km
Kaohsiung International KHH 9 Civ. Paved Yes 10300 99 km
Kangshan 10 Mil. Paved No 7500 100 km
Chiayi CYI 25 Civ. Paved Yes 10000 100 km
Tso Ying 9 0 100 km
Highway Strip 296 298 9 0 103 km
Tainan TNN 19 Mil. Paved Yes 10000 103 km
Highway Strip 260 30 0 104 km
Sun Moon Lake SMT unknown 0 105 km
Orchid Island KYD 10 Civ. Paved No 4500 109 km
Hengchun HCN 13 Civ. Paved No 3500 115 km
Hualien HUN 16 Civ. Paved Yes 9000 124 km
Highway Strip 206 23 0 132 km
Taichung TXG 112 Mil. Paved Yes 5300 146 km

Ports

Intensity Name LOCODE Country Distance
Tai Tung Taiwan 29 km
Tai Nan Taiwan 91 km
An Ping Chiang Taiwan 109 km
Kaohsiung TWKHH Taiwan 106 km
Lan Yu Island Taiwan 108 km
Hualien TWHUN Taiwan 120 km
Taichung TWTXG Taiwan 157 km

Dams

Intensity Reservoir Dam Name River Year Distance
Tsengwen Tsengwen 1973 76 km
Wushantou Offstream Kuantien 1930 90 km

Nuclear plants

Intensity Name Country Reactors Distance
MAANSHAN TAIWAN 2 121 km

More information

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