On July 9-10, the third typhoon, EWINIAR, was generated in the sea approximately 1,010 km southwest of Guam, the United States, and headed towards the southern part of Korea (Gyeongnam, Jeonnam, etc.), gathering force to become a strong mid-scale typhoon with a central air pressure of 985 hPa and a maximum wind speed of 31 mk, accompanied by strong winds and locally intensive rainfall. At that time, Namhae’s rainfall measured 401 mm, Geoje’s 373.5 mm, Sancheong’s 366.0 mm, Jinju’s 306.5 mm, Yeosu’s 296 mm, and Goheung’s 276 mm.
On July 11-29, but specifically on July 11, the fourth typhoon, Bilis, which eventually landed in China, caused a massive vapor to form in the atmosphere while the rainfront was moving up and down the middle part of the country after having stayed over the skies of North Korea. As a result, 500-900 mm of rainfall was reported in the Gangwon-Yeongseo region, which is a mountainous area, while the waterfront moved downward to the southern part of the country (the southern part of Gyeonggi-do) and locally intensive rains fell in Gyeonggi, Anseong, Yeoju, Jincheon in Chungbuk, Eumseong, Danyang, and others. On July 11 to 13, heavy rains fell in Seoul, Gyeonggi, and the northern part of Gangwon-do. On July 14-20, there were heavy rains in Hwoingseong (921 mm), Pyeongchang (870 mm), Hongcheon (851 mm), Donghae (729 mm), Jeongseon (716 mm), and Inje (679 mm). On July 25-29, heavy rains fell over Anseong in Gyeonggi-do, and again in Danyang, Chungbuk. Jecheon reported a 359 mm rainfall, Eunseong 383 mm, Jeocheon 359 mm, Suwon 337.5 mm, Yangpyeong 286 mm, and Chungju 228.5 mm.
Cause of the Disaster
Typhoon EWINIAR caused problems with the drainage at the major lower stream in Gimhae, Jinju, and seashore areas like Yeosu and Boseong, which consequently resulted in the inundation of streets. Meanwhile, mountain areas like Sancheong and Hapcheon suffered damages to their public facilities as a result of the heavy rainfall therein (exceeding 300 mm), but the damages were relatively smaller than those caused by previous typhoons, such as Maemi and Rusasi, because much reconstruction and restoration had been made. Many mudslide incidents were caused by the intensive rainfall because the earth’s foundation came to contain excessive water due to the long period of heavy rains (from July 11 to 29), which also aggravated the inundation that was caused by the typhoon in the basin of Nanhangang River in Yeongwol, Danyang, and Yeoju. Furthermore, the solifluction caused by the intensive rainfall and subsequent mudslide in the mountain areas aggravated the damage wrought by the typhoon, resulting in the loss and burial of the mountainous backwater area. Moreover, the solifluction clogged the river stream, flooded the bridges, inundated the river stream, and caused the collapse of embankments, wreaking havoc on houses and farmlands and wiping away roads. In the mountain area, national and local roads were destroyed due to the solifluction and mudslide in the valleys and road-cut slopes. In Pyeongchang, farmland soil was flown into the river stream, aggravating the inundation caused by the flood.
On July 9-10, the third typhoon, EWINIAR, was generated in the sea approximately 1,010 km southwest of Guam, the United States, and headed towards the southern part of Korea (Gyeongnam, Jeonnam, etc.), gathering enough force to become a strong mid-scale typhoon with a central air pressure of 985 hPa and a maximum wind speed of 31 mk, accompanied by strong winds and locally intensive rainfall. At that time, Namhae’s rainfall measured 401 mm, Geoje’s 373.5 mm, Sancheong’s 366.0 mm, Jinju’s 306.5 mm, Yeosu’s 296 mm, and Goheung’s 276 mm.
On July 11-29, but specifically on July 11, the fourth typhoon, Bilis, which eventually landed in China, caused a massive vapor to form in the atmosphere while the rainfront was moving up and down the middle part of the country and stayed over North Korea. As a result, 500-900 mm of rainfall was reported in the Gangwon-Yeongseo region, which is a mountainous area, while the waterfront moved downward to the southern part of the country (e.g., the southern part of Gyeonggi-do) and locally intensive rains fell in Gyeonggi, Anseong, Yeoju, Jincheon in Chungbuk, Eumseong, Danyang, and others. On July 11-13, heavy rains fell in Seoul, Gyeonggi, and the northern part of Gangwon-do. On July 14-20, heavy rains fell in Hwoingseong (921 mm), Pyeongchange (870 mm), Hongcheon (851 mm), Donghae (729 mm), Jeongseon (716 mm), and Inje (679 mm). On July 25 to 29, heavy rains fell over Anseong in Gyeonggi-do, and again in Danyang, Chungbuk. Jecheon reported a 359 mm rainfall, Eunseong 383 mm, Jeocheon 359 mm, Suwon 337.5 mm, Yangpyeong 286 mm, and Chungju 228.5 mm.
Typhoon EWINIAR caused problems with the drainage at the major lower stream in Gimhae, Jinju, and seashore areas like Yeosu and Boseong, which consequently resulted in the inundation of streets. Meanwhile, mountain areas like Sancheong and Hapcheon suffered damages to public facilities as a result of the intensive rainfall (exceeding 300 mm), but the damage was relatively smaller than that caused by the previous typhoons, such as Maemi and Rusasi, because much reconstruction and restoration had been made. Many mudslide incidents were caused by intensive rainfall because the earth’s foundation contained excessive water due to the long period of heavy rains (from July 11 to 29), which also aggravated the inundation caused by the typhoon in the basin of Nanhangang River in Yeongwol, Danyang, and Yeoju. Furthermore, the solifluction caused by the intensive rainfall and the subsequent mudslide in the mountain areas aggravated the damage, resulting in the loss and burial of the mountainous backwater area. Moreover, the solifluction clogged the river stream, flooded the bridges, inundated the river stream, and caused the collapse of embankments, wreaking havoc on houses and farmlands and wiping away roads. In the mountain area, national and local roads were destroyed due to the solifluction and mudslide in the valleys and road-cut slopes. In Pyeongchang, farmland soil was flown into the river stream, aggravating the inundation caused by the flood. Much of the damage caused by typhoon EWINIAR from July 9 to 10 consisted of the inundation of streets due to the problem with the drainage at the lower stream of the major rivers. On July 11-29, intensive rainfall was caused by the fourth typhoon, Billis, which hit China while the rainfront was moving up and down the middle part of the country and stayed in the northern side of the Korean peninsula on July 11.
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| Summary of the Damage to the Cities and Provinces (July 9-29) |
| Type |
Total Damage
(unit: 1 million won) |
Victims
(Persons) |
Lives Lost
(Persons) |
| Seoul |
5.734 |
73 |
- |
| Busan |
8.616 |
34 |
1 |
| Daegu |
737 |
5 |
- |
| Incheon |
713 |
21 |
- |
| Gwangju |
45 |
8 |
- |
| Daejeon |
68 |
8 |
- |
| Ulsan |
19.581 |
8 |
1 |
| Gyeonggi-do |
57.671 |
57 |
8 |
| Gangwon-do |
1,308,779 |
2,078 |
44 |
| Cheongcheongbuk-do |
94,883 |
105 |
3 |
| Cheongcheongnam-do |
14,879 |
55 |
- |
| Jeollabuk-do |
1,905 |
39 |
2 |
| Jeollanam-do |
43,425 |
93 |
- |
| Gyeongsangbuk-do |
52,337 |
118 |
3 |
|
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Home > Disaster Reports > Typhoons > Ewiniari
Information : Administrative Management Division / Hyun-jin Choi / 02-2100-5128