M 4.6 in China on 20 Sep 2014 21:14 UTC

Hazard models

EQ parameters
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: 4.6M
Depth: 30.14 Km
Lat/Lon: 23.53 , 121.58
Event Date: 20 Sep 2014 21:14 UTC
21 Sep 2014 05:14 Local
Exposed Population:
916699 people within 100km
Source: NEIC
Inserted at: 21 Sep 2014 00:48 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1060706 0 20 Sep 2014 21:14 4.6M, 30.14km N/A 920 thousand (in 100km) 03:34 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 22,456,987) . The nearest places are Feng-pin, Shih-ti-ping, Ta-chiang-k'ou, Chang-yüan, Sha-lao, Chia-lu-lan, Ta-lo-ma, Fu-min, Sung-pu, San-li, and T'ieh-chia-lung-she.

Radius Population
100 km 900000 people
75 km 430000 people
50 km 230000 people
20 km 15000 people
10 km 1600 people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Taiwan China 22.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Feng-pin Hua-lien Taiwan Village - 10 km
Shih-ti-ping Hua-lien Taiwan City - 11 km
Ta-chiang-k'ou Hua-lien Taiwan Village - 13 km
Chang-yüan Hua-lien Taiwan Village - 17 km
Sha-lao Hua-lien Taiwan Village - 19 km
Chia-lu-lan Hua-lien Taiwan Village - 20 km
Ta-lo-ma Hua-lien Taiwan Village - 21 km
Fu-min Hua-lien Taiwan Village - 22 km
Sung-pu Hua-lien Taiwan Village - 24 km
San-li Hua-lien Taiwan Village - 27 km
Chia-tsou-wan Pi T'ai-tung Taiwan City - 27 km
Feng-kuang Hua-lien Taiwan Village - 28 km
T'ai-kao-li Hua-lien Taiwan Village - 29 km
Shui-lien Hua-lien Taiwan Village - 29 km
Chung-hu Hua-lien Taiwan Village - 30 km
Feng-lin Hua-lien Taiwan Village - 33 km
Yü-li Hua-lien Taiwan City - 35 km
Lieh-k'o-ni Hua-lien Taiwan Village - 36 km
Feng-shan Hua-lien Taiwan Village - 37 km
Wu-shih Pi T'ai-tung Taiwan City - 38 km
Cho-ch'ing-ts'un Hua-lien Taiwan Village - 41 km
Chien-fan Hua-lien Taiwan Village - 41 km
San Hsien Tai T'ai-tung Taiwan City - 46 km
Ch'u-yin Hua-lien Taiwan Village - 46 km
Jung-shu Hua-lien Taiwan Village - 49 km
Hua-lien Hua-lien Taiwan Major city - 50 km
Cheng-kung T'ai-tung Taiwan City - 52 km
Fu-li T'ai-tung Taiwan Village - 53 km
Wu-ssu Hua-lien Taiwan Village - 53 km
Ta-shan Hua-lien Taiwan Village - 56 km
Ch'ih-shang T'ai-tung Taiwan City - 60 km
Wan-shan-t'ang Hua-lien Taiwan Village - 61 km
Pa-t'ung-kuan Nan-t'ou Taiwan Village - 61 km
Hsin-i T'ai-tung Taiwan Village - 62 km
Shui-chui T'ai-tung Taiwan Village - 62 km
Ka-sha Nan-t'ou Taiwan Village - 63 km
Ch'ing-hsi T'ai-tung Taiwan Village - 64 km
Hsin-ch'eng Hua-lien Taiwan City - 67 km
Hsia-ma T'ai-tung Taiwan Village - 67 km
Tung-pu Nan-t'ou Taiwan Village - 67 km
Tu-ho T'ai-tung Taiwan Village - 68 km
Kuan-shan T'ai-tung Taiwan Village - 69 km
T'ieh-chia-lung-she Hua-lien Taiwan City - 70 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
Hualien HUN 16 Civ. Paved Yes 9000 55 km
Sun Moon Lake SMT unknown 0 77 km
Lishan LHN unknown 0 88 km
Taitung TTT 37 Mil. Paved No 11000 91 km
Green Island GNI 8 Civ. Paved No 3300 96 km
Feng Nin 42 Civ. Paved Yes 7900 99 km

Ports

Name LOCODE Country Distance
Hualien TWHUN Taiwan 51 km

Dams

Reservoir Dam Name River Year Distance
Guguan Dajiaxi 1961 95 km

Nuclear plants

Name Country Reactors Distance
LUNG-MEI TAIWAN 2 99 km

More information

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