2017 Jiuzhaigou earthquake

The 2017 Jiuzhaigou earthquake was an earthquake that happened on 8 August 2017, in Zhangzha Town, Jiuzhaigou County, Ngawa Prefecture, Sichuan Province, China. The earthquake was recorded at magnitude 7.0. It killed at least 24 people in the area.

Earthquake 

The earthquake started at 21:19:46 China Standard Time (CST, UTC+8) on 8 August 2017 in Zhangzha Town in Jiuzhaigou County (). It had magnitude 7.0. Cities as far away as Lanzhou, Chengdu and Xi'an felt the earthquake. The centre of the earthquake was 39 kilometres from the county seat of Jiuzhaigou County, 66 kilometres from Songpan County, 83 kilometres from Zhouqu County, 90 kilometres from Zoigê County, 105 kilometres from Longnan City, and 285 kilometres from Chengdu City.

Setting 
Northern Sichuan is in an area where there is a lot of earth movement.  In this area, the Tibetan Plateau is next to the Yangtze Plate with great pressure forming faults along the edges.  Jiuzhaigou County is in the Min Mountains, a range that was formed where these faults meet.  The disastrous 1879 Gansu earthquake had its earthquake centre about 65 kilometres to the east of where the 2017 Jiuzhaigou earthquake happened.  The places with lots of mountains to the south of Jiuzhaigou County were the earthquake centre of the 2008 Sichuan earthquake that resulted in tens of thousands of deaths.

Influence 
The China Earthquake Administration said that the graph showed that the strength of earthquake could be higher than level IX, and the earthquake centre in Zhangzha County could reach level VIII.

After the earthquake, all of the Jiuzhaigou County completely suffered a power failure. The people who saw the situation found that some buildings had fallen in Jiuzhaigou Valley Scenic and Historic Interest Area. The staff of the Jiuzhaigou Valley Scenic and Historic Interest Area told a reporter from Xinhua News Agency that in the fourth ditch of the Jiuzhaigou Valley Scenic and Historic Interest Area a house had fallen down and cracked, and the locals were stepping up to move people out.

Rescue 
The China Earthquake Administration put up a Level I reaction. It later changed to Level II. They sent the army to the earthquake area for rescue. At 21:26 CST (UTC+8), Health and Family Planning Commission of Sichuan Province  started an emergency plan. The medical rescue team was going to head to the earthquake area within one hour.
The Red Cross Society of China, Sichuan Branch was on emergency standby (ready to act immediately), preparing for rescue. Early the next day, China's State Council Earthquake food-supply headquarters started national level Ⅱ earthquake emergency response.

At 06:20 CST on 9 August, a Shuajingsi Town (刷经寺镇) militia vehicle had a traffic collision with a Sichuan F (Deyang) coach in Hongyuan County, Ngawa Prefecture. Three people from the coach were injured and were being medically treated.

Until 9 August 2017, there were 40 people seriously injured. Seven of them were moved to other hospitals, four to West China Hospital of Sichuan University, and the rest to Jiuzhaigou County Hospital and Zhongzang Hospital.

Deaths and injuries 
The Emergency Management Office of the Ngawa Prefecture, Sichuan Province said that until 13:10 CST on 9 August, the 7.0-magnitude earthquake in Zhangzha Town in Jiuzhaigou County killed 19 people and injured 247 people, including 40 people critically injured. The following day, the deaths rose to 20 with over 400 injured. Deaths and injuries mainly occurred in Zhangzha Town in Jiuzhaigou County.

Aftershocks 

As of 10 August 2017 10:00 CST (UTC+8), 1741 aftershocks had occurred. That included 30 major ones. Some experts said that the aftershocks might reach a magnitude of 6 after several days. The major aftershocks reported by China Earthquake Networks Center are listed below:

Notes

References

Other websites 
 

2017 earthquakes
2017 in Asia
2010s earthquakes in Asia
2010s in China
August 2017 events
Earthquakes in China
Gansu
Shaanxi
Sichuan