M 6.6 Off-shore on 17 Sep 2022 13:41 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: 6.6M
Depth: 10 Km
Lat/Lon: 23.029 , 121.3483
Event Date: 17 Sep 2022 13:41 UTC
17 Sep 2022 21:41 Local
Exposed Population: About 8000 people in MMI
60 thousand (in MMI>=VII)
Source: NEIC us7000i8ui
Inserted at: 17 Sep 2022 14:04 UTC
INFORM Coping capacity of the alert score
3.6 (Taiwan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0.8 0.2 0.8
us7000i8ui Scaled population (raster) 4.02 Max wave alert 0.23m  
  C1 shakemap -0.59 Max wave realtime 0.23m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.82      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1462503 0.7 17 Sep 2022 13:41 6.5M, 10km 7.49 50 thousand (in 100km) 0m (at 00:00) 00:10 GEOFON
1462504 0 17 Sep 2022 13:41 6.6M, 45km 6.34 250 thousand (in 100km) 0m (at 00:00) 00:14 PTWC
1462505 0 17 Sep 2022 13:41 6.6M, 45km N/A 250 thousand (in 100km) 0m (at 00:00) 00:16 NTWC
1462507 0.8 17 Sep 2022 13:41 6.6M, 10km 7.64 60 thousand (in MMI>=VII) 0.2m (at 00:01) 00:23 NEIC
1462511 0.3 17 Sep 2022 13:41 6.5M, 10km 6.79 20 thousand (in MMI>=VII) 0.3m (at 00:15) 00:52 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 , Province of Taiwan (population 34,266) . The nearest places are Hsin-i, Ch'ing-hsi, Tu-ho, Cheng-kung, San Hsien Tai, Shui-chui, Ch'ih-shang, Hsin-ch'ang-ts'un, Fu-li, Kuan-shan, and Ping-tung.

Radius Population
100 km 1 million people
75 km 260000 people
50 km 220000 people
20 km 36000 people
10 km 13000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Taiwan China 34000 people

Affected populated places

Name Region Province Country City class Population Distance
Hsin-i T'ai-tung Taiwan Village - 3 km
Ch'ing-hsi T'ai-tung Taiwan Village - 8 km
Tu-ho T'ai-tung Taiwan Village - 9 km
Cheng-kung T'ai-tung Taiwan City - 9 km
San Hsien Tai T'ai-tung Taiwan City - 14 km
Shui-chui T'ai-tung Taiwan Village - 15 km
Ch'ih-shang T'ai-tung Taiwan City - 18 km
Hsin-ch'ang-ts'un T'ai-tung Taiwan Village - 19 km
Fu-li T'ai-tung Taiwan Village - 19 km
Kuan-shan T'ai-tung Taiwan Village - 20 km
A-hou-liao T'ai-tung Taiwan Village - 23 km
Wu-shih Pi T'ai-tung Taiwan City - 23 km
Yung-kang T'ai-tung Taiwan Village - 25 km
Chi-hsing T'ai-tung Taiwan Village - 31 km
Cho-ch'ing-ts'un Hua-lien Taiwan Village - 31 km
Hsia-ma T'ai-tung Taiwan Village - 32 km
Ch'u-lu T'ai-tung Taiwan Village - 33 km
Chia-tsou-wan Pi T'ai-tung Taiwan City - 34 km
Yü-li Hua-lien Taiwan City - 34 km
Tai-tung T'ai-tung Taiwan City - 37 km
T'ai-kao-li Hua-lien Taiwan Village - 39 km
Nan-liao T'ai-tung Taiwan Village - 41 km
Ta-nan T'ai-tung Taiwan Village - 44 km
Hai-shen-p'ing T'ai-tung Taiwan Village - 44 km
Chang-yüan Hua-lien Taiwan Village - 45 km
San-li Hua-lien Taiwan Village - 45 km
Sung-pu Hua-lien Taiwan Village - 45 km
T'ao-lin T'ai-tung Taiwan Village - 46 km
Chien-ho T'ai-tung Taiwan Village - 47 km
Wu-ssu Hua-lien Taiwan Village - 48 km
Ta-chiang-k'ou Hua-lien Taiwan Village - 49 km
Ta-lo-ma Hua-lien Taiwan Village - 52 km
Lieh-k'o-ni Hua-lien Taiwan Village - 52 km
Shih-ti-ping Hua-lien Taiwan City - 52 km
Tai-ma T'ai-tung Taiwan Village - 59 km
Fu-min Hua-lien Taiwan Village - 59 km
Fu-hsing Kao-hsiung Taiwan Village - 60 km
La-chia T'ai-tung Taiwan Village - 61 km
Pa-t'ung-kuan Nan-t'ou Taiwan Village - 63 km
Ko-la Kao-hsiung Taiwan Village - 64 km
Yüan-t'un Kao-hsiung Taiwan Village - 65 km
Feng-pin Hua-lien Taiwan Village - 65 km
Pao-shan-ts'un Kao-hsiung Taiwan Village - 67 km
Tun-na-tsun Kao-hsiung Taiwan Village - 68 km
Chin-lun T'ai-tung Taiwan Village - 68 km
Sha-lao Hua-lien Taiwan Village - 70 km
Ping-tung P'ing-tung Taiwan Major city - 98 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
Taitung TTT 37 Mil. Paved No 11000 31 km
Feng Nin 42 Civ. Paved Yes 7900 40 km
Green Island GNI 8 Civ. Paved No 3300 41 km
Pingtung North 29 Mil. Paved No 8000 96 km
Pingtung South 24 Mil. Paved Yes 7800 99 km

Ports

Name LOCODE Country Distance
Tai Tung Taiwan 43 km

Dams

Reservoir Dam Name River Year Distance
Tsengwen Tsengwen 1973 87 km

More information

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