2011 Seoul floods
| Date | July 25 – 28, 2011 (KST) |
|---|---|
| Location |
 Republic of Korea Democratic People's Republic of Korea
|
| Deaths | At least 69 (8 missing) |
| Property damage | Several hundred million USD |
The 2011 Seoul floods were a series of floods in late July 2011 caused by heavy rainfall around Seoul, South Korea. The intense rain triggered a series of flash floods and landslides that killed at least 49 people by July 27, leaving a total of more than 77 dead or missing. On July 27, the number of killed rose further to 69. The floods occurred primarily around the national capital Seoul and nearby Siheung regions. At least 86 power outages followed the landslides, affecting 125,000 people by July 27. Over 11,000 South Koreans were forced to evacuate.
On July 25, rains and thunderstorms triggered by a trough hit the mountains of the Korean Peninsula, producing over 495 mm (19.5 in) of rain in the Seoul region during a two-day span, the heaviest such event in July since 1907. 587 mm (23.1 in) of rain was recorded in the area after three days.
On July 26, a landslide buried three hotels in Chuncheon, east of Seoul, killing 13 people from Inha University. A landslide in Umyeon-dong killed 18 residents in an apartment block. Floodwaters inundated highways and tracks of the Seoul Metropolitan Subway, while bridges over the Han River were closed off. Damages are likely to be in the hundreds of millions USD. Motor vehicle damages reached $38 million on July 28. Close to 978 ha (2,420 acres) of agricultural land and more than 10,000 homes were flooded.
Rail infrastructure in South Korea was impacted, while a South Korean investment analyst expected economic inflation to reach 4.6%.
An editorial from Kyunghyang Shinmun sought Mayor of Seoul Oh Se-hoon as the main culprit of the worsened flood crisis; as both of his Hangang Renaissance project and his Design Seoul project (redesigned some streets in Seoul) had further increased the overall damage of the flooding.
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