Overall Green Earthquake alert in China on 21 May 2023 19:56 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 4.7 in China on 21 May 2023 19:56 UTC

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:	4.7M
Depth:	10 Km
Lat/Lon:	28.4543 , 104.8517
Event Date:	21 May 2023 19:56 UTC 22 May 2023 03:56 Local
Exposed Population:	90 thousand in MMI V
Source:	NEIC us6000kdqt
Inserted at:	21 May 2023 21:11 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)		GDACS score
NEIC	0		0
us6000kdqt	Scaled population (vector)	0
	C1 rapid impact	0
	C2 rapid impact	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1506916		0	21 May 2023 19:56	4.7M, 10km	5.19	90 thousand (in 100km)		01:14	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 Sichuan (population 678,769) . The nearest places are Chiu-chang-ning, Yangling, Gong Xian, Xunchang, Changning, Shaheyi, An-ning, Hongqiao, Didong, Ch'ing-fu, and Niubeishi.

Radius	Population
100 km	10.5 million people
75 km	6 million people
50 km	3.2 million people
20 km	510000 people
10 km	99000 people
5 km	18000 people
2 km	<1000 people

Affected Provinces

Region Province	Country	Population
Sichuan	China	680000 people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Chiu-chang-ning	Sichuan	China	City	-	9 km
Yangling	Sichuan	China	Village	-	11 km
Gong Xian	Sichuan	China	City	-	11 km
Xunchang	Sichuan	China	Village	64000 people	14 km
Changning	Sichuan	China	City	-	15 km
Shaheyi	Sichuan	China	Village	-	15 km
An-ning	Sichuan	China	Village	-	17 km
Hongqiao	Sichuan	China	Village	-	18 km
Didong	Sichuan	China	Village	-	19 km
Ch'ing-fu	Sichuan	China	Village	-	25 km
Gujiahe	Sichuan	China	Village	-	27 km
Hingwen	Sichuan	China	Village	-	27 km
Dipeng	Sichuan	China	Village	-	28 km
Gao Xian	Sichuan	China	City	-	29 km
Ch'ing-fu-hsien	Sichuan	China	Village	-	30 km
Qingfu	Sichuan	China	City	-	33 km
Li-chuang	Sichuan	China	Village	-	33 km
Shangluochang	Sichuan	China	Village	-	35 km
Jiangan	Sichuan	China	City	-	37 km
Jinshawan	Sichuan	China	Village	-	37 km
Ku-sung	Sichuan	China	Village	-	37 km
Nanguang	Sichuan	China	Village	-	39 km
Baixi	Sichuan	China	Village	-	39 km
Luochang	Sichuan	China	Village	-	40 km
Gusong	Sichuan	China	Village	-	41 km
Lo-lung	Sichuan	China	Village	-	41 km
Yibin	Sichuan	China	City	240000 people	41 km
I-pin	Sichuan	China	Village	-	43 km
Anbianzhen	Sichuan	China	City	-	43 km
Nanxi	Sichuan	China	Village	-	44 km
Hsü-chou	Sichuan	China	Village	-	44 km
Anbian	Sichuan	China	Village	-	45 km
Mu'ai	Sichuan	China	Village	-	46 km
Lo-piao	Sichuan	China	Village	-	46 km
Dadukou	Sichuan	China	Village	-	46 km
Daba	Sichuan	China	Village	-	46 km
Yunlian	Sichuan	China	City	-	46 km
Shangmachang	Sichuan	China	Village	-	47 km
Nan-ch'i	Sichuan	China	Village	-	47 km
Jiangmenchang	Sichuan	China	Village	-	47 km
Lo-hsing-tu	Sichuan	China	Village	-	48 km
Yongxing	Sichuan	China	Village	-	48 km
An-fu-chen	Sichuan	China	Village	-	49 km
Hsiang-pi-ch'ang	Sichuan	China	Village	-	49 km
Heng-chiang	Sichuan	China	Village	-	50 km
Anfu	Sichuan	China	Village	-	50 km
Chün-lien	Sichuan	China	Village	-	51 km
Maling	Sichuan	China	Village	-	51 km
Daguan	Sichuan	China	Village	-	51 km
Zhangguansi	Yunnan	China	Village	-	52 km
I-pu-t'an	Sichuan	China	Village	-	53 km
Hsun-ssu-ch'ang	Sichuan	China	Village	-	53 km
Ch'ang-hsing	Sichuan	China	Village	-	53 km
Huguochang	Sichuan	China	Village	-	54 km
T'ieh-ch'ing	Sichuan	China	Village	-	56 km
Fenshuiling	Sichuan	China	Village	-	57 km
Niuzhai	Yunnan	China	Village	-	59 km
Gaochang	Sichuan	China	Village	-	60 km
Tantou	Yunnan	China	Village	-	60 km
Naxi	Sichuan	China	City	-	62 km
Hsü-yung	Sichuan	China	Village	-	63 km
Gaotian	Yunnan	China	Village	-	63 km
Huiyi	Yunnan	China	Village	-	65 km
Taiping	Yunnan	China	Village	-	65 km
Huagu	Sichuan	China	Village	-	65 km
Shuang-tsao-fang	Sichuan	China	City	-	65 km
Lo-pa-ti	Sichuan	China	Village	-	66 km
Anfu	Sichuan	China	Village	-	66 km
Tongtan	Sichuan	China	Village	-	66 km
Li-ch'iao	Sichuan	China	Village	-	68 km
Shuiwei	Sichuan	China	Village	-	69 km
Niubeishi	Sichuan	China	Village	-	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
Yibin Heliport P		250				0	49 km
Luzhou	LZO	219				0	69 km

Dams

Dam Name	Year	Distance
Haojiacun	n/a	23 km
Mamiao	1959	53 km
Muqiaogou	1975	72 km

More information

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

Disclaimer
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