Why is Quang Ninh still affected by floods?

Record rain in 50 years with landslides clogging the flow, so Quang Ninh was submerged in water, there are places nearly 2 m deep.

Explain the cause of the historic flood in Quang Ninh

In the afternoon of July 29, at the Central Hydrometeorological Center , meteorologists and geologists exchanged information with the media about the historical floods in Quang Ninh Province.

Video Scene boat boat ride on the street in Quang Ninh

Dr. Hoang Duc Cuong - Director of the Central Hydrometeorological Center, said that from 26-28 / 7 the extreme rainfall poured into Quang Ninh. The total amount of precipitation is approximately 1,000 mm in 3 days.

The main cause of the phenomenon is low pressure and strong convection in this area. The low pressure area is located in the Gulf of Tonkin, so the coastal area of ​​Quang Ninh is directly affected. "This is the biggest rain in Quang Ninh in the past 40-50 years," Cuong said.

High water of Lo Phong stream and Ha Phong ward (Ha Long city) caused many residential areas to sink into the sea.Fire police are mobilized to rescue people.(Photo: Quang Ninh Newspaper.)

Mr. Cuong said that the center has continuously issued warnings about the flood since July 23. However, the rain level is set from midnight to midnight, so the information comes to the preventive units with limited parts.

Dr. Le Quoc Hung - Deputy Director of the Institute of Mineral Geology, Ministry of Natural Resources and Environment, though Quang Ninh is not a province at risk of landslides as high as mountains, but with historical rainfall has causing soil to become saturated, causing landslides.

"The vegetation cover is thin, the ground is weak so the hillsides and slopes are difficult to survive when being hit by heavy rainfall for many days," said Dr Hung.

Hung noted that the areas at high risk of landslide are Ha Long and Cam Pha - where there are many residential areas on the hillside. "All mountainous areas of Quang Ninh warn of danger, " Hung warned.

Talking about the risk of landslides in Quang Ninh, Dr. Bui Minh Tang - former director of the Central Hydrometeorological Forecast Center, said that the rainfall in 3 days is from 500 to 800 mm, some places are close Slag 1,000 mm, exceeding all the monitoring data of Quang Ninh province so far.

According to Mr. Tang, Quang Ninh's terrain is quite complicated, especially large waste dumps of coal mines like artificial hills . Adhesion at waste dumps is very weak, when heavy rains occur, landslides are inevitable.

"The landslides at the disposal sites make the mud and sand mixed to block sewers and rivers, limiting the flow to the sea. Therefore, flooding in Quang Ninh is very heavy," Mr. Tang said.

Mr. Tang assessed the intensity of rainfall in Quang Ninh in the last days of July, which was bigger than the historical rain in Hanoi in November 2008.

Mr. Le Thanh Hai - Deputy General Director of National Center for Hydro-Meteorological Forecasting stated that 2015 is the year of many extreme weather events.(Photo: Cong Khanh.)

Dr. Le Thanh Hai said that in 2015, Vietnam has encountered many types of extreme weather. It was a very hot summer but unusually cold in Sa Pa, a historic thunderstorm in Hanoi, a record drought in South Central Vietnam and now rain in Quang Ninh.

"It is likely that in the future we will face another extreme weather phenomenon, " Hai noted.

Quang Ninh Provincial People's Committee said that after 3 days of flooding (July 26-28), the locality had lost over 1,000 billion VND, 23 people were killed and missing.