Overall Orange Earthquake in Taiwan on 02 Apr 2024 23:58 UTC

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

M 7.4 in Taiwan on 02 Apr 2024 23:58 UTC

Hazard models

Rapid Impact

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:	7.4M
Depth:	34.8 Km
Lat/Lon:	23.819 , 121.5616
Event Date:	02 Apr 2024 23:58 UTC 03 Apr 2024 07:58 Local
Exposed Population:	2.9 million (in MMI>=VII)
Source:	NEIC us7000m9g4
Inserted at:	03 Apr 2024 00:14 UTC
INFORM Coping capacity of the alert score:	3.6 (Taiwan)

GDACS Score

For more info on GDACS score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	1.4		1		1.4
us7000m9g4	Scaled population (raster)	4.98	Max wave alert	0.51m
	C1 shakemap	-0.59	Max wave realtime	1m
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.82
	Score no CC	raster

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	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1562635	1.2	02 Apr 2024 23:58	7.5M, 11.4km	7.61	260 thousand (in 100km)	1.6m (at 00:08)	00:12	PTWC
1562636	1.2	02 Apr 2024 23:58	7.5M, 11km	N/A	260 thousand (in 100km)	1.6m (at 00:08)	00:14	NTWC
1562637	1.4	02 Apr 2024 23:58	7.4M, 34.8km	7.08	2.9 million (in MMI>=VII)	1m (at 00:15)	00:16	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 22,456,987) . The alertlevel for this event is ORANGE

Intensity	Population
	6900 people
	790000 people
	15 million people
	2.9 million people

Shakemaps Timeline

Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1.1	1562637	121.562/23.819	7.4	34.8	7.417	03 Apr 2024 00:19	00:20	(new episode)
2	1.1	1562637	121.562/23.819	7.4	34.8	7.427	03 Apr 2024 00:48	00:49	(upd of #1)
3	1.2	1562637	121.562/23.819	7.4	34.8	7.731	03 Apr 2024 01:49	01:51	(upd of #2)
4	1.3	1562637	121.562/23.819	7.4	34.8	7.825	03 Apr 2024 02:11	02:13	(upd of #3)
5	2.4	1562637	121.562/23.819	7.4	34.8	7.654	03 Apr 2024 21:40	21:42	(upd of #4)
6	1.2	1562637	121.562/23.819	7.4	34.8	7.654	04 Apr 2024 00:40	1d 00:42	(upd of #5)
7	1.4	1562637	121.562/23.819	7.4	34.8	7.869	04 Apr 2024 19:40	1d 19:42	(upd of #6)

Affected Provinces

Intensity	Region Province	Population
	Taiwan	4600 people
	Taiwan	620000 people
	Taiwan	15.9 million people
	Taiwan	2.5 million people
	Taiwan	4.1 million people
	Okinawa	33000 people
	Fujian	170000 people

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	23 km
		9				0	103 km
Lishan	LHN	unknown				0	59 km
Sun Moon Lake	SMT	unknown				0	64 km
Taichung	TXG	112	Mil.	Paved	Yes	5300	101 km
Ching Chuan Kang AB		203	Mil.	Paved	No	12000	108 km
Highway Strip 206		23				0	110 km
Lung Tan		241	Civ.	Paved	No	3200	119 km
Highway Strip 260		30				0	122 km
Pa Kuei		141				0	126 km
Hsinchu	HSZ	8	Civ.	Paved	Yes	12000	127 km
Ao Hu Kou		152				0	128 km
Highway Strip 58 60		120				0	132 km
Sungshan	TSA	6	Civ.	Paved	Yes	8500	139 km
Taoyuan		45	Mil.	Paved	No	10000	141 km
Chiang Kai Shek International	TPE	33	Civ.	Paved	Yes	12000	144 km
Chiayi	CYI	25	Civ.	Paved	Yes	10000	126 km
Green Island	GNI	8	Civ.	Paved	No	3300	127 km
Highway Strip 296 298		9				0	149 km
Kuei Jen		30				0	160 km
Yonaguni	OGN	21	Civ.	Paved	Yes	4900	161 km
Kangshan		10	Mil.	Paved	No	7500	176 km
Taitung	TTT	37	Mil.	Paved	No	11000	120 km
Feng Nin		42	Civ.	Paved	Yes	7900	127 km
Pingtung North		29	Mil.	Paved	No	8000	166 km
Highway Strip 331 334		11				0	166 km
Tainan	TNN	19	Mil.	Paved	Yes	10000	168 km
Pingtung South		24	Mil.	Paved	Yes	7800	170 km
Tso Ying		9				0	180 km
Kaohsiung International	KHH	9	Civ.	Paved	Yes	10300	185 km
Makung AB	MZG	31	Mil.	Paved	Yes	6500	199 km
P Eng Hu		21				0	204 km
Hengchun	HCN	13	Civ.	Paved	No	3500	215 km
Wang An		30				0	216 km
Hateruma	HTR	unknown				0	228 km
Iriomote Jima		12				0	240 km
Ishigaki	ISG	26	Civ.	Paved	Yes	4900	273 km

Ports

Name	LOCODE	Distance
Hualien	TWHUN	20 km
Suao	TWSUO	92 km
Taichung	TWTXG	117 km
Keelung (Chilung)	TWKEL	147 km
Tan Shui		152 km
Tai Nan		153 km
Tai Tung		129 km
An Ping Chiang		170 km
Kaohsiung	TWKHH	189 km
Peng Hu		211 km
Tai Chung		216 km
Irionote Island		231 km

Dams

Dam Name	River	Year	Distance
Guguan	Dajiaxi	1961	70 km
Mingteh	Houlung	1970	109 km
Shihmen	Tahan	1964	114 km
Tsengwen	Tsengwen	1973	122 km
Wushantou	Offstream Kuantien	1930	140 km

Nuclear Facilities

Type	Name	Distance
Research reactor	THOR	122 km
Nuclear Power Plant	Kuosheng-2	154 km
Nuclear Power Plant	Maanshan-1	221 km
Nuclear Power Plant	Maanshan-2	221 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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