M 6.9 in China on 18 Sep 2022 06:44 UTC

Hazard models

EQ parameters
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: 6.9M
Glide number: EQ-2022-000313-CHN
Depth: 10 Km
Lat/Lon: 23.1589 , 121.316
Event Date: 18 Sep 2022 06:44 UTC
18 Sep 2022 14:44 Local
Exposed Population: About 54000 people in MMI
140 thousand (in MMI>=VII)
Source: NEIC us7000i90q
Inserted at: 18 Sep 2022 07:27 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 1 0.4 1
us7000i90q Scaled population (raster) 4.65 Max wave alert 0.41m  
  C1 shakemap -0.59 Max wave realtime 0.41m  
  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
1462665 0.1 18 Sep 2022 06:44 6.8M, 10km N/A 2.3 million (in 100km) 0.2m (at 00:00) 00:10 GEOFON
1462666 0.8 18 Sep 2022 06:44 7.2M, 10km N/A 1.8 million (in 100km) 0.9m (at 00:25) 00:12 NTWC
1462674 1 18 Sep 2022 06:44 7.2M, 10km 8.12 150 thousand (in MMI>=VII) 0.9m (at 00:19) 00:23 NEIC
1462682 1 18 Sep 2022 06:44 6.9M, 10km 8.24 140 thousand (in MMI>=VII) 0.4m (at 00:00) 00:43 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

The earthquake happened in China , Province of Taiwan (population 51,806) . The nearest places are San Hsien Tai, Cheng-kung, Fu-li, Wu-shih Pi, Shui-chui, Ch'ih-shang, Hsin-i, Ch'ing-hsi, Cho-ch'ing-ts'un, Yü-li, and Tou-liu.

Radius Population
100 km 1.9 million people
75 km 290000 people
50 km 200000 people
20 km 54000 people
10 km 19000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Taiwan China 52000 people

Affected populated places

Name Region Province Country City class Population Distance
San Hsien Tai T'ai-tung Taiwan City - 7 km
Cheng-kung T'ai-tung Taiwan City - 7 km
Fu-li T'ai-tung Taiwan Village - 8 km
Wu-shih Pi T'ai-tung Taiwan City - 12 km
Shui-chui T'ai-tung Taiwan Village - 13 km
Ch'ih-shang T'ai-tung Taiwan City - 13 km
Hsin-i T'ai-tung Taiwan Village - 15 km
Ch'ing-hsi T'ai-tung Taiwan Village - 16 km
Cho-ch'ing-ts'un Hua-lien Taiwan Village - 17 km
Yü-li Hua-lien Taiwan City - 20 km
Kuan-shan T'ai-tung Taiwan Village - 21 km
Tu-ho T'ai-tung Taiwan Village - 21 km
Chia-tsou-wan Pi T'ai-tung Taiwan City - 22 km
T'ai-kao-li Hua-lien Taiwan Village - 25 km
Hsia-ma T'ai-tung Taiwan Village - 26 km
A-hou-liao T'ai-tung Taiwan Village - 26 km
Hsin-ch'ang-ts'un T'ai-tung Taiwan Village - 30 km
San-li Hua-lien Taiwan Village - 30 km
Sung-pu Hua-lien Taiwan Village - 31 km
Yung-kang T'ai-tung Taiwan Village - 32 km
Chang-yüan Hua-lien Taiwan Village - 32 km
Wu-ssu Hua-lien Taiwan Village - 34 km
Lieh-k'o-ni Hua-lien Taiwan Village - 37 km
Ta-chiang-k'ou Hua-lien Taiwan Village - 37 km
Ta-lo-ma Hua-lien Taiwan Village - 38 km
Shih-ti-ping Hua-lien Taiwan City - 40 km
Ch'u-lu T'ai-tung Taiwan Village - 41 km
Chi-hsing T'ai-tung Taiwan Village - 42 km
Fu-min Hua-lien Taiwan Village - 45 km
Tai-tung T'ai-tung Taiwan City - 48 km
Pa-t'ung-kuan Nan-t'ou Taiwan Village - 49 km
T'ao-lin T'ai-tung Taiwan Village - 50 km
Ta-nan T'ai-tung Taiwan Village - 52 km
Feng-pin Hua-lien Taiwan Village - 53 km
Fu-hsing Kao-hsiung Taiwan Village - 53 km
Yüan-t'un Kao-hsiung Taiwan Village - 56 km
Nan-liao T'ai-tung Taiwan Village - 56 km
Sha-lao Hua-lien Taiwan Village - 56 km
Chien-ho T'ai-tung Taiwan Village - 57 km
Chung-hu Hua-lien Taiwan Village - 58 km
Hai-shen-p'ing T'ai-tung Taiwan Village - 59 km
Tung-pu Nan-t'ou Taiwan Village - 60 km
Ko-la Kao-hsiung Taiwan Village - 60 km
Min-sheng-ts'un Kao-hsiung Taiwan Village - 63 km
Chia-lu-lan Hua-lien Taiwan Village - 65 km
Pao-shan-ts'un Kao-hsiung Taiwan Village - 65 km
Feng-kuang Hua-lien Taiwan Village - 66 km
Lao-nung Kao-hsiung Taiwan Village - 67 km
Ta-pang Chia-i Taiwan Village - 68 km
La-chia T'ai-tung Taiwan Village - 68 km
Tun-na-tsun Kao-hsiung Taiwan Village - 69 km
Tai-ma T'ai-tung Taiwan Village - 69 km
Hsin-i Nan-t'ou Taiwan Village - 69 km
Hua-lien Hua-lien Taiwan Major city - 95 km
Tou-liu Yun-lin Taiwan Major city - 100 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 43 km
Feng Nin 42 Civ. Paved Yes 7900 50 km
Green Island GNI 8 Civ. Paved No 3300 56 km
Sun Moon Lake SMT unknown 0 89 km
Pingtung North 29 Mil. Paved No 8000 100 km

Ports

Name LOCODE Country Distance
Tai Tung Taiwan 52 km
Hualien TWHUN Taiwan 97 km

Dams

Reservoir Dam Name River Year Distance
Tsengwen Tsengwen 1973 80 km
Wushantou Offstream Kuantien 1930 97 km

More information

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