M 6.6 Off-shore from 17 Sep 2022 13:41 UTC to 13:41

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: 45 Km
Lat/Lon: 23 , 121.2
Event Date: 17 Sep 2022 13:41 UTC
17 Sep 2022 21:41 Local
Exposed Population: 250 thousand in MMI VI
Source: NTWC at00ricwoy
Inserted at: 17 Sep 2022 13:58 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)		 Tsunami GDACS score
NTWC 0 0 0
at00ricwoy Scaled population (vector) 2.21 Max wave alert 0m  
  C1 rapid impact -0.59 Max wave realtime 0m  
  C2 rapid impact 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 53,967) . The nearest places are A-hou-liao, Kuan-shan, Ch'ing-hsi, Shui-chui, Tu-ho, Yung-kang, Hsin-ch'ang-ts'un, Hsin-i, Ch'ih-shang, Fu-li, and Hsin-ying.

Radius Population
100 km 4.7 million people
75 km 450000 people
50 km 220000 people
20 km 39000 people
10 km 14000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Taiwan China 54000 people

Affected populated places

Name Region Province Country City class Population Distance
A-hou-liao T'ai-tung Taiwan Village - 7 km
Kuan-shan T'ai-tung Taiwan Village - 7 km
Ch'ing-hsi T'ai-tung Taiwan Village - 8 km
Shui-chui T'ai-tung Taiwan Village - 10 km
Tu-ho T'ai-tung Taiwan Village - 10 km
Yung-kang T'ai-tung Taiwan Village - 10 km
Hsin-ch'ang-ts'un T'ai-tung Taiwan Village - 12 km
Hsin-i T'ai-tung Taiwan Village - 13 km
Ch'ih-shang T'ai-tung Taiwan City - 13 km
Fu-li T'ai-tung Taiwan Village - 20 km
Ch'u-lu T'ai-tung Taiwan Village - 20 km
Cheng-kung T'ai-tung Taiwan City - 21 km
Hsia-ma T'ai-tung Taiwan Village - 22 km
Chi-hsing T'ai-tung Taiwan Village - 22 km
San Hsien Tai T'ai-tung Taiwan City - 26 km
Tai-tung T'ai-tung Taiwan City - 28 km
T'ao-lin T'ai-tung Taiwan Village - 30 km
Ta-nan T'ai-tung Taiwan Village - 31 km
Wu-shih Pi T'ai-tung Taiwan City - 33 km
Cho-ch'ing-ts'un Hua-lien Taiwan Village - 34 km
Chien-ho T'ai-tung Taiwan Village - 36 km
Yü-li Hua-lien Taiwan City - 39 km
Chia-tsou-wan Pi T'ai-tung Taiwan City - 43 km
Wu-ssu Hua-lien Taiwan Village - 44 km
T'ai-kao-li Hua-lien Taiwan Village - 45 km
Nan-liao T'ai-tung Taiwan Village - 45 km
La-chia T'ai-tung Taiwan Village - 47 km
Fu-hsing Kao-hsiung Taiwan Village - 48 km
Tai-ma T'ai-tung Taiwan Village - 48 km
Hai-shen-p'ing T'ai-tung Taiwan Village - 49 km
San-li Hua-lien Taiwan Village - 50 km
Ko-la Kao-hsiung Taiwan Village - 51 km
Sung-pu Hua-lien Taiwan Village - 51 km
Tun-na-tsun Kao-hsiung Taiwan Village - 52 km
Pao-shan-ts'un Kao-hsiung Taiwan Village - 52 km
Chang-yüan Hua-lien Taiwan Village - 54 km
Lieh-k'o-ni Hua-lien Taiwan Village - 54 km
Yüan-t'un Kao-hsiung Taiwan Village - 54 km
Ch'ü-nu P'ing-tung Taiwan Village - 55 km
Lao-nung Kao-hsiung Taiwan Village - 56 km
P'ai-wan-she P'ing-tung Taiwan Village - 58 km
Chin-lun T'ai-tung Taiwan Village - 58 km
Ta-lo-ma Hua-lien Taiwan Village - 58 km
Chieh-ta-ts'un T'ai-tung Taiwan Village - 58 km
Pa-t'ung-kuan Nan-t'ou Taiwan Village - 58 km
Ta-chiang-k'ou Hua-lien Taiwan Village - 58 km
Min-sheng-ts'un Kao-hsiung Taiwan Village - 59 km
Shih-ti-ping Hua-lien Taiwan City - 61 km
K'o-la-p'a-yang T'ai-tung Taiwan Village - 62 km
Shao-t'an-k'eng Kao-hsiung Taiwan Village - 63 km
Fu-min Hua-lien Taiwan Village - 64 km
Chia-hsien-pu Kao-hsiung Taiwan Village - 65 km
Kuei-ts'ang Kao-hsiung Taiwan Village - 65 km
Hsia-ta-chi T'ai-tung Taiwan Village - 65 km
San-ti P'ing-tung Taiwan Village - 66 km
Ch'ang-jung-ts'un P'ing-tung Taiwan Village - 66 km
Chia-jui-pu P'ing-tung Taiwan Village - 66 km
Tung-pu Nan-t'ou Taiwan Village - 68 km
Shang-fan T'ai-tung Taiwan Village - 69 km
Chia-p'ing P'ing-tung Taiwan Village - 69 km
Hsin-liao Kao-hsiung Taiwan Village - 69 km
Ta-pang Chia-i Taiwan Village - 69 km
Mei-nung Kao-hsiung Taiwan Village - 70 km
Ping-tung P'ing-tung Taiwan Major city - 83 km
Feng-shan Kao-hsiung Taiwan Major city - 96 km
Hsin-ying T'ai-nan Taiwan Major city - 97 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 23 km
Feng Nin 42 Civ. Paved Yes 7900 29 km
Green Island GNI 8 Civ. Paved No 3300 45 km
Pingtung North 29 Mil. Paved No 8000 81 km
Pingtung South 24 Mil. Paved Yes 7800 84 km
Kuei Jen 30 0 94 km
Highway Strip 331 334 11 0 97 km
Chiayi CYI 25 Civ. Paved Yes 10000 97 km
Kaohsiung International KHH 9 Civ. Paved Yes 10300 99 km
Kangshan 10 Mil. Paved No 7500 99 km
Tso Ying 9 0 100 km

Ports

Name LOCODE Country Distance
Tai Tung Taiwan 31 km
Tai Nan Taiwan 89 km

Dams

Reservoir Dam Name River Year Distance
Tsengwen Tsengwen 1973 73 km
Wushantou Offstream Kuantien 1930 88 km

More information

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