Overall Green Earthquake alert in Taiwan on 18 Apr 2021 14:14 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 5.8 in Taiwan on 18 Apr 2021 14:14 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:	5.8M
Depth:	10 Km
Lat/Lon:	23.87 , 121.535
Event Date:	18 Apr 2021 14:14 UTC 18 Apr 2021 22:14 Local
Exposed Population:	About 2000 people in MMI 3780000 people within 100km
Source:	NEIC us6000e2mv
Inserted at:	18 Apr 2021 15:41 UTC
INFORM Coping capacity of the alert score:	3.6 (Taiwan)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0.6		0.6
us6000e2mv	Scaled population (raster)	3.38
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.82

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1370805		0.4	18 Apr 2021 14:14	5.9M, 10km	7.1	20 thousand (in MMI>=VII)		00:17	NEIC
1370812		0.6	18 Apr 2021 14:14	5.8M, 10km	7.59	30 thousand (in MMI>=VII)		01:26	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 ,of Taiwan (population 21,300) . The alertlevel for this event is GREEN

Intensity	Population
	24000 people
	190000 people
	43000 people

Shakemaps Timeline

Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	0.6	1370805	23.896/121.504	5.9	10.0	7.279	18 Apr 2021 14:37	00:22	(new episode)
2	0.4	1370805	23.896/121.504	5.9	10.0	7.095	18 Apr 2021 15:14	00:59	(upd of #1)
3	0.5	1370812	23.87/121.535	5.8	10.0	7.197	18 Apr 2021 16:19	02:05	(new episode)
4	0.5	1370812	23.87/121.535	5.8	10.0	7.586	18 Apr 2021 16:35	02:20	(upd of #3)
5	0.6	1370812	23.87/121.535	5.8	10.0	7.59	19 Apr 2021 14:20	1d 00:06	(upd of #4)
6	0.6	1370812	23.872/121.534	5.8	10.0	7.589	19 Apr 2021 17:58	1d 03:44	(upd of #5)

Affected Provinces

Region Province	Country	Population
Taiwan	China	21000 people
Taiwan	China	170000 people
Taiwan	China	30000 people
Taiwan	China	10.9 million people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Feng-shan	Hua-lien	Taiwan	Village	-	5 km
Ch'u-yin	Hua-lien	Taiwan	Village	-	8 km
Shui-lien	Hua-lien	Taiwan	Village	-	9 km
Jung-shu	Hua-lien	Taiwan	Village	-	11 km
Feng-lin	Hua-lien	Taiwan	Village	-	12 km
Hua-lien	Hua-lien	Taiwan	Major city	-	14 km
Feng-kuang	Hua-lien	Taiwan	Village	-	17 km
Ta-shan	Hua-lien	Taiwan	Village	-	19 km
Chia-lu-lan	Hua-lien	Taiwan	Village	-	18 km
Sha-lao	Hua-lien	Taiwan	Village	-	26 km
Hsin-ch'eng	Hua-lien	Taiwan	City	-	30 km
Feng-pin	Hua-lien	Taiwan	Village	-	30 km
T'ieh-chia-lung-she	Hua-lien	Taiwan	City	-	33 km
Fu-min	Hua-lien	Taiwan	Village	-	38 km
Lo-shao	Hua-lien	Taiwan	Village	-	39 km
Shih-ti-ping	Hua-lien	Taiwan	City	-	44 km
Ta-lo-ma	Hua-lien	Taiwan	Village	-	44 km
Ta-chiang-k'ou	Hua-lien	Taiwan	Village	-	46 km
Chang-yüan	Hua-lien	Taiwan	Village	-	51 km
Sung-pu	Hua-lien	Taiwan	Village	-	51 km
Sung-pai	T'ai-chung	Taiwan	Village	-	51 km
San-li	Hua-lien	Taiwan	Village	-	52 km
Ao-hua	I-lan	Taiwan	Village	-	55 km
Tao-k'eng	Nan-t'ou	Taiwan	Village	-	56 km
T'ai-kao-li	Hua-lien	Taiwan	Village	-	57 km
Pu-li	Nan-t'ou	Taiwan	Village	-	60 km
Chia-tsou-wan Pi	T'ai-tung	Taiwan	City	-	62 km
Yu-chih	Nan-t'ou	Taiwan	Village	-	62 km
Shih-tzu-t'ou	T'ai-chung	Taiwan	Village	-	63 km
Pa-she-pu	Nan-t'ou	Taiwan	Village	-	63 km
Yü-li	Hua-lien	Taiwan	City	-	64 km
Mi-lo	Hsin-chu	Taiwan	Village	-	65 km
Ha-lung-t'ai	T'ai-chung	Taiwan	Village	-	67 km
Cho-ch'ing-ts'un	Hua-lien	Taiwan	Village	-	69 km
Ch'e-ch'eng	Nan-t'ou	Taiwan	Village	-	69 km
Shui-li	Nan-t'ou	Taiwan	Village	-	71 km
Ta-p'ing	T'ai-chung	Taiwan	Village	-	72 km
Nan-ao	I-lan	Taiwan	City	-	72 km
Tung-pu	Nan-t'ou	Taiwan	Village	-	72 km
Wu-shih Pi	T'ai-tung	Taiwan	City	-	72 km
Ming-te	Nan-t'ou	Taiwan	Village	-	73 km
Hsin-i	Nan-t'ou	Taiwan	Village	-	73 km
Pei-shih-k'eng	Nan-t'ou	Taiwan	Village	-	78 km
Tu-chang	I-lan	Taiwan	Village	-	78 km
Lu-ku-hsiang	Nan-t'ou	Taiwan	Village	-	79 km
San Hsien Tai	T'ai-tung	Taiwan	City	-	81 km
Kuang-hsing-ts'un	Nan-t'ou	Taiwan	Village	-	81 km
Fu-li	T'ai-tung	Taiwan	Village	-	83 km
Shui-wei	Nan-t'ou	Taiwan	Village	-	83 km
Chung-hsing-hsin-ts'un	Nan-t'ou	Taiwan	City	-	85 km
Cheng-kung	T'ai-tung	Taiwan	City	-	86 km
Su-ao	I-lan	Taiwan	City	-	86 km
Nan-tou	Nan-t'ou	Taiwan	Major city	-	88 km
Ta-jen-tung	Nan-t'ou	Taiwan	Village	-	88 km
Ts'ao-t'un	Nan-t'ou	Taiwan	Village	-	88 km
Chu-wei-tzu	Nan-t'ou	Taiwan	Village	-	89 km
Shih-kang	T'ai-chung	Taiwan	City	-	90 km
Ch'ih-shang	T'ai-tung	Taiwan	City	-	90 km
Lu-hu	Miao-li	Taiwan	Village	-	91 km
Ha-li-wei	Chia-i	Taiwan	Village	-	92 km
Shui-chui	T'ai-tung	Taiwan	Village	-	93 km
Chu-kao-wu	Miao-li	Taiwan	Village	-	93 km
Fweng-yüan	T'ai-chung	Taiwan	Major city	-	93 km
Tai-chung	T'ai-chung Shih	Taiwan	Major city	-	93 km
Ta-pang	Chia-i	Taiwan	Village	-	94 km
Tai-chung-hsien	T'ai-chung	Taiwan	City	-	94 km
T'ung-t'ou	Nan-t'ou	Taiwan	Village	-	94 km
Ta-pu	Chang-hua	Taiwan	Village	-	95 km
Hsia-wei-liao	Yun-lin	Taiwan	Village	-	96 km
Hsin-i	T'ai-tung	Taiwan	Village	-	96 km
Ch'ing-hsi	T'ai-tung	Taiwan	Village	-	98 km
Wei-she	T'ai-chung	Taiwan	Village	-	98 km
Tien-chung	Chang-hua	Taiwan	City	-	98 km
Kuan-shan	T'ai-tung	Taiwan	Village	-	99 km
Yuan Lin	Chang-hua	Taiwan	City	-	100 km
I-lan	I-lan	Taiwan	Major city	-	102 km
Pei-tou	Chang-hua	Taiwan	Village	-	103 km
Yün-lin	Yun-lin	Taiwan	City	-	104 km
Miao-li	Miao-li	Taiwan	Major city	-	104 km
Chang-hua	Chang-hua	Taiwan	Major city	-	104 km
Chih-chih-ya-she	Chia-i	Taiwan	Village	-	105 km
Tou-liu	Yun-lin	Taiwan	Major city	-	105 km
Ku-keng	Yun-lin	Taiwan	Village	-	105 km
San-pan-t'ou	Yun-lin	Taiwan	Village	-	105 km
Shiao-Mei	Yun-lin	Taiwan	Village	-	106 km
Hsi-chou	Chang-hua	Taiwan	Village	-	107 km
Ching-shui	T'ai-chung	Taiwan	City	-	108 km
Yüan-li	Miao-li	Taiwan	City	-	109 km
T'ien-liao	Chia-i	Taiwan	Village	-	109 km
Hai huang	T'ai-chung	Taiwan	Village	-	109 km
Ta-t'u-t'ou	Chang-hua	Taiwan	Village	-	109 km
Ho-mel	Chang-hua	Taiwan	City	-	110 km
Shih-pu	Chia-i	Taiwan	Village	-	111 km
Hsi-lo	Chang-hua	Taiwan	City	-	111 km
Ting-chuang	Chang-hua	Taiwan	Village	-	114 km
Hu-wei	Yun-lin	Taiwan	Village	-	115 km
Lu-kang	Chang-hua	Taiwan	City	-	115 km
Chia-i	Chia-i	Taiwan	Village	-	115 km
Chia-i	Chia-i	Taiwan	City	-	119 km
T'u-k'u-chuang	Yun-lin	Taiwan	Village	-	120 km
Ting-liao	Chia-i	Taiwan	Village	-	120 km
Erh-lin	Chang-hua	Taiwan	City	-	120 km
Hsin-ch'i-liao	Yun-lin	Taiwan	Village	-	122 km
Ma-kuang	Yun-lin	Taiwan	Village	-	123 km
Wang-kung	Chang-hua	Taiwan	Village	-	123 km
Shui-Shan	Chia-i	Taiwan	Village	-	127 km
T'an-tzu-ch'ien	Chia-i	Taiwan	Village	-	127 km
Pao-chung	Yun-lin	Taiwan	Village	-	127 km
Hsin-ts'o	T'ai-nan	Taiwan	Village	-	129 km
Taipei	T'ai-pei Chuan-Shih	Taiwan	Capital	2.5 million people	129 km
San-hsing	Chang-hua	Taiwan	Village	-	130 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	19 km
Lishan	LHN	unknown				0	53 km
Sun Moon Lake	SMT	unknown				0	61 km
Taichung	TXG	112	Mil.	Paved	Yes	5300	96 km
		9				0	98 km
Ching Chuan Kang AB		203	Mil.	Paved	No	12000	103 km
Highway Strip 206		23				0	107 km
Highway Strip 260		30				0	121 km
Chiayi	CYI	25	Civ.	Paved	Yes	10000	125 km
Sungshan	TSA	6	Civ.	Paved	Yes	8500	133 km
Highway Strip 296 298		9				0	149 km
Kuei Jen		30				0	162 km

Ports

Name	LOCODE	Country	Distance
Hualien	TWHUN	Taiwan	16 km
Suao	TWSUO	Taiwan	87 km
Taichung	TWTXG	Taiwan	112 km

Dams

Intensity	Reservoir	Dam Name	River	Year	Distance
		Guguan	Dajiaxi	1961	65 km

Nuclear plants

Intensity	Name	Country	Reactors	Distance
	LUNG-MEI	TAIWAN	2	63 km

More information

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

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