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

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: PTWC pt22260001
Inserted at: 17 Sep 2022 13:55 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
PTWC 0 0 0
pt22260001 Scaled population (raster) 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.

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
1462503 0.7 17 Sep 2022 13:41 6.5M, 10km 7.49 50 thousand (in MMI>=VII) 0m (at 00:00) 00:10 GEOFON
1462504 0 17 Sep 2022 13:41 6.6M, 45km 6.34 N/A (in MMI>=VII) 0m (at 00:00) 00:14 PTWC
1462505 0 17 Sep 2022 13:41 6.6M, 45km 6.34 N/A (in MMI>=VII) 0m (at 00:00) 00:16 NTWC
1462507 0.6 17 Sep 2022 13:41 6.6M, 10km 7.2 50 thousand (in MMI>=VII) 0.2m (at 00:01) 00:23 NEIC
1462511 0.5 17 Sep 2022 13:41 6.5M, 10km 7.25 30 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.

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 Taiwan (population 22,456,987) . The alertlevel for this event is GREEN

Intensity Population
250000 people
6.9 million people

Affected Provinces

Intensity Region Province Population
Taiwan 73000 people
Taiwan 740000 people

Affected populated places. Areas of interest

Intensity Name Region Province City class Population Distance
A-hou-liao T'ai-tung Village - 7 km
Kuan-shan T'ai-tung Village - 7 km
Ch'ing-hsi T'ai-tung Village - 8 km
Shui-chui T'ai-tung Village - 10 km
Tu-ho T'ai-tung Village - 10 km
Yung-kang T'ai-tung Village - 10 km
Hsin-i T'ai-tung Village - 13 km
Ch'ih-shang T'ai-tung City - 13 km
Fu-li T'ai-tung Village - 20 km
Ch'u-lu T'ai-tung Village - 20 km
Cheng-kung T'ai-tung City - 21 km
Chi-hsing T'ai-tung Village - 22 km
San Hsien Tai T'ai-tung City - 26 km
Tai-tung T'ai-tung City - 28 km
Ta-nan T'ai-tung Village - 31 km
Wu-shih Pi T'ai-tung City - 33 km
Cho-ch'ing-ts'un Hua-lien Village - 34 km
Chien-ho T'ai-tung Village - 36 km
Yü-li Hua-lien City - 39 km
Chia-tsou-wan Pi T'ai-tung City - 43 km
T'ai-kao-li Hua-lien Village - 45 km
Nan-liao T'ai-tung Village - 45 km
La-chia T'ai-tung Village - 47 km
Fu-hsing Kao-hsiung Village - 48 km
Tai-ma T'ai-tung Village - 48 km
Hai-shen-p'ing T'ai-tung Village - 49 km
San-li Hua-lien Village - 50 km
Ko-la Kao-hsiung Village - 51 km
Sung-pu Hua-lien Village - 51 km
Tun-na-tsun Kao-hsiung Village - 52 km
Pao-shan-ts'un Kao-hsiung Village - 52 km
Chang-yüan Hua-lien Village - 54 km
Ch'ü-nu P'ing-tung Village - 55 km
Lao-nung Kao-hsiung Village - 56 km
P'ai-wan-she P'ing-tung Village - 58 km
Chin-lun T'ai-tung Village - 58 km
Ta-lo-ma Hua-lien Village - 58 km
Chieh-ta-ts'un T'ai-tung Village - 58 km
Ta-chiang-k'ou Hua-lien Village - 58 km
Min-sheng-ts'un Kao-hsiung Village - 59 km
Shih-ti-ping Hua-lien City - 61 km
K'o-la-p'a-yang T'ai-tung Village - 62 km
Shao-t'an-k'eng Kao-hsiung Village - 63 km
Fu-min Hua-lien Village - 64 km
Chia-hsien-pu Kao-hsiung Village - 65 km
Hsia-ta-chi T'ai-tung Village - 65 km
San-ti P'ing-tung Village - 66 km
Ch'ang-jung-ts'un P'ing-tung Village - 66 km
Chia-jui-pu P'ing-tung Village - 66 km
Tung-pu Nan-t'ou Village - 68 km
Ta-pang Chia-i Village - 69 km
Mei-nung Kao-hsiung Village - 70 km
Ta-pu Chia-i Village - 71 km
Chih-chih-ya-she Chia-i Village - 73 km
Hsiao-chung-lin P'ing-tung Village - 73 km
Kuo-chiang-tzu P'ing-tung Village - 77 km
Hsin-wu-hsia P'ing-tung Village - 79 km
Tung-ning P'ing-tung Village - 80 km
Ping-tung P'ing-tung Major city - 83 km
Chao-chou P'ing-tung City - 85 km
Wan-tan P'ing-tung Village - 87 km

see full list

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 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

Ports

Intensity Name LOCODE Distance
Tai Tung 31 km

More information

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