0403 Hualien Earthquake

1st Impacts Assessment Reportat Central Emergency Operation Center

National Science and Technology Center for Disaster Reduction
2024.04.03 10:00

Geological profile (1) near the hypocenters

04/03_08:11
04/03_07:58 M 6.5, 5.5km
M 7.2, 15.5km

Geological profile (2) near the hypocenters

04/03_08:11
M 6.5, 5.5km

04/03_07:58
M 7.2, 15.5km

Till 10:00 am, 15 more aftershocks overmagnitude 4.0

Shake Map
Area
Area Intensity Intensity

PGA(gal)Hualien+

6+
1109

84.0

1109

Yilan +5+

49.21

418.64

Nantou-5-25.84

184.74

Hsinchu-5-

26.23

184.74

New Taipei

5-22.47172.76

Hualien-epicenter

NCDR

PGV(cm/S)

Source: CWA

Damaged building in Hualien0403 Damages after Hualien Earthquake (crowdsourcing)

08:25 Hualien Girls' High School
08:36 Hualien City

08:14 Hualien City

Damages in Tongmen Village, Xiulin Township, Hualien County.
Tongmen Elementary School

Damage to the elevated subway bridge in New Taipei City

Damage to HW#9 at Daqingshui TunnelFalling-rock damages in HW#8 and HW#14

台8台14甲Fault lines near the epicenter
Milun Fault
吉安鄉

Num.

Fault

1Lingding

2

Milun

3

Rueyshui秀林鄉

壽豐鄉

Lingding Fault
萬榮鄉
鳳林鎮

Fault Classifications
光復鄉

Rueyshui Fault
瑞穗鄉

豐濱鄉

Holocene Active Fault
Late Pleistocene Active Fault

Transportation systems under high shaking intensity
宜蘭縣臺中市花蓮縣

Highway

HW#8, HW#9. HW#9C,
HW#9D,HW#11

Railway

North Link Line
Hualien Taitung Line

Facilities under high shaking intensity
Facilities

YilanTaichung

Heping Industrial Park

Hualien
Hualien

Hualien Fuel Service Center (Beipu Depot)
Hualien Airport
Hualien Fuel Service Center (Hualien Depot)

Heping Industrial Park,
Hualien Airport,
Hualien Fuel ServiceCenter (Hualien Depot),
Hualien Fuel Service
Center (Beipu Depot)

Areas with a high risk of landslides• Landslide hotspots by county or city: Taichung City, Nantou County, Yilan County, HualienCounty• Landslide hotspots by highway: HW#8, HW#9, HW#9C, HW#9D, HW#11, HW#14, andsome rural roads
Yilan County

Taichung City

Nantou County

Hualien County

Aeras

HotspotsTaichung City

Heping District

NantouCountyRen'ai Township

Yilan County

Su'ao Town, Su'ao Town, Nan'aoTownship, Datong Township

HualienCountyWanrong Township, Ji'an Township,Guangfu Township, FengbinTownship, Hualien City, Shoufeng
Township, Xiulin Township

High-voltage power towers under high shaking intensity
南澳鄉
宜蘭縣

臺中市

秀林鄉

花蓮縣

新城鄉

吉安鄉
壽豐鄉

High-voltage
power towers

Recommendations


According to the Central Weather Administration report, strong shakings cover most areas ofTaiwan, and areas with high population density should prioritize safety inspections, especially ofadministrative units and schools.

Under the intense shaking, the functions and operation of essential utilities need safety
inspections.

Given the intense shaking in certain areas, verifying the operations of transportation systems isof utmost importance. This will not only facilitate subsequent rescue operations and supply
distribution but also reassure the public about the continuity of essential services.

Immediate action is required to verify the status of the water and electricity supply and theimpact on transportation in the earthquake-affected areas. This urgency underscores the needfor prompt and decisive measures.

The spatial community teams are advised to prioritize aerial photography planning for HualienCounty, Yilan County, and Nantou County to assist in subsequent disaster assessment.

Relevant earthquake disaster information should be provided promptly, reminding the public to
be cautious of aftershocks and to avoid entering dangerous buildings and areas.

Coordinating with relevant agencies to use parks and open spaces to support many people'semergency evacuation and shelter should be expedited.