What is the difference between the Qinghai Yushu earthquake and the last Wenzhou earthquake?

I have collected and compiled 25 pieces of comparative information, hoping it can help you (please indicate the source for reprinting, thank you)

Comparison of the Yushu Earthquake and the Wenchuan Earthquake

1. Time

Yushu: April 14, 2010, 07:49

Wenchuan: May 12, 2008, 14:28

2. Location

Yushu: Yushu County, Yushu Tibetan Autonomous Prefecture, Qinghai Province (33.2N, 96.6E)

Wenchuan: Yingxiu Town, Wenchuan County, Sichuan Province (30.986N, 103.364E) )

3. Permanent population

Yushu: 252,700 (1999)

Wenchuan: 111,700 (before 2008)

Yushu: magnitude 7.1, preliminary estimate of rupture length is about 30 kilometers

Wenchuan: magnitude 8.0, rupture length 300 kilometers

5 , focal depth

Yushu: 14 kilometers

Wenchuan: 14 kilometers

6. Number of victims

Yushu: 2,064 ( As of 17:00 on April 20, 2010)

Wenchuan: 69,227 people (as of 10:00 on May 25, 2009)

7. Affected area

Yushu: 20,000 square kilometers

Wenchuan: 100,000 square kilometers

8. Disaster-affected population

Yushu: nearly 300,000

Wenchuan : More than 10 million

9. Aftershocks

Yushu: As of 15:36 on April 14, 2010, 18 aftershocks have occurred.

Wenchuan: As of 11:00 on May 20, 2008, more than 7,000 aftershocks had occurred in ***.

10. Direct economic losses

Yushu: unknown

Wenchuan: 845.1 billion yuan

11. Altitude

Yushu: generally above 4,000 meters

Wenchuan: between 1,300-1,500 meters

12. CCTV Donation Gala

Yushu: 2.175 billion yuan

Wenchuan: 1.514 billion yuan

13. National Mourning Day

Yushu: April 21, 2010 (one day)

Wenchuan: May 19 to 21, 2008 (three days)

14. Language

Yushu: Tibetan Autonomous Prefecture, the vast majority of people are Tibetans, language There is a huge inconvenience in communication.

Wenchuan: There are few problems in language communication between rescue workers and local people.

15. Earthquake Types

Yushu: Strike-slip earthquake, on relatively vertical faults, the damage will not last long, just like two cars rubbing against each other.

Wenchuan: Mainly thrust, the fault plane is like a slope, the damage is long and wide, like two cars colliding, with serious tearing.

16. Movement of plots

Yushu: The distance between the two plots has not changed, but has shifted left and right.

Wenchuan: The distance between the two land masses has been shortened, and it was squeezed out by force, probably pushing several meters towards the Qinghai-Tibet Plateau.

17. Movement speed

Yushu: Fault sliding is much faster than Wenchuan.

Wenchuan: The fault movement speed is relatively slow and the energy is slowly accumulated. The Wenchuan earthquake occurs once every few thousand or tens of thousands of years.

18. The plate it is located in

Yushu: The Garze-Yushu-Fenghuoshan fault zone belongs to the southern boundary of the Bayan Har massif.

Wenchuan: It is located in the north-south seismic zone, which is the dividing line between the Sichuan Basin and the Qinghai-Tibet Plateau. It is the Longmenshan fault zone and belongs to the southeastern boundary of the Bayan Har massif.

19. Foreshocks

Yushu: There was a foreshock, and a magnitude 4.7 earthquake occurred before the earthquake.

Wenchuan: Like the Tangshan earthquake, there was no foreshock.

20. Disaster-affected areas

Yushu: Yushu County, Yushu Tibetan Autonomous Prefecture, Qinghai Province, Chengduo County, Garze Prefecture, Sichuan.

Wenchuan: Sichuan Chengdu, Dujiangyan, Mianyang, Deyang, Guangyuan, Aba Prefecture, Beichuan, Mianzhu, Qingchuan County, and Wenchuan County are the main disaster-stricken areas. Earthquakes occurred in Tianshui, Longnan and other places in Gansu.

21. Scope of impact

Yushu: It has affected some areas of Sichuan. The earthquake was more obvious in Shiqu and Baiyu, Ganzi Prefecture, Sichuan.

Wenchuan: In addition to Sichuan, casualties occurred in four provinces and cities including Shaanxi, Henan, Hubei, and Chongqing. The earthquake was felt in most of China.

22. Climate

Yushu: It is expected that there will be no precipitation in the Yushu earthquake area in the next two days, and the weather situation is generally conducive to earthquake relief. On April 14, 2010, the weather in Yushu County, Yushu Prefecture, Qinghai Province was mainly cloudy, with the lowest temperature being minus 1.5°C. Winds of level 6 or 7 were blowing in the disaster area, making rescue difficult.

Wenchuan: After the Wenchuan earthquake, widespread rainfall and flash floods occurred in the disaster area, making rescue extremely difficult.

For example, on May 14, 2008, heavy rain fell in Mianzhu County, and Qingping Township, Tianchi Township, and Jinhua Town near the Longmen Mountains were in danger of flash floods at any time.

23. Buildings

Yushu: Most of the buildings are civil structures. After the strong earthquake in Yushu County, almost all the civil structure houses collapsed.

Wenchuan: Most of the buildings are masonry structures. The earthquake caused the collapse of 7 schools, including two kindergartens, in Mianzhu City, Sichuan, and 1,700 people were buried. A large number of schools collapsed in other disaster-stricken areas.

24. Transportation

Yushu: It is a high-altitude area with insufficient medical facilities. It is 800 kilometers away from the provincial capital and has inconvenient transportation. These will become great difficulties for rescue. . Fortunately, the newly opened Yushu Airport in 2008 has brought convenience to rapid air support.

Wenchuan: Most traffic in the disaster area has been interrupted. Due to heavy rainfall, landslides are everywhere.

Twenty-five. Communications

Yushu: As of 14:00 on April 14, 2010, mobile and fixed-line telephone communications in the Yushu earthquake area have been basically interrupted.

Wenchuan: Communications in the disaster area were completely interrupted, and communications in Chengdu, the provincial capital, were basically interrupted. After the earthquake, citizens called their mobile phones to find out the situation but were unable to get through.