What are the catastrophic accidents in history, and which natural disasters in history have caused a

1 Avian influenza: 2004 outbreak again.

2 2003 natural gas blowout in Gaoqiao Town, Chongqing.

3 The incident of the Japanese army in Qiqihar abandoning poison and injuring people.

4 Liaoning Haicheng soybean milk poisoning incident.

5 2003 U.S. wildfires.

6 SARS incident in China.

7 Nanjing Tangshan 9· 14 Extraordinarily large poisoning case.

8 Guangdong Heyuan "Clenbuterol" poisoning incident.

9 United States 9.11 terrorist attacks.

10 Foot-and-mouth disease crisis in the UK.

11 Poisoning caused by Staphylococcus aureus contamination in snow mark milk in Japan12 Food poisoning incident with Listeria monocytogenes in France.

13 Dioxin poisoning in Belgium, the Netherlands, Germany, and France.14 The 1998 floods in China.

15 The 1996 "O157" infection incident in Japan.

16 "Mad cow disease" incident in the United Kingdom.

17 Arsenic poisoning in Bangladesh.

18 Suicide of a Sun Temple.

19 Tokyo subway "sarin" gas incident.

20 Los Angeles Alum, USA, 1994**.

21 Leakage at the Chernobyl Nuclear Power Plant**.

22 Toxic gas spill in Bhopal, India, 1984.

Tangshan Da**.

Lop Nur drought.

Chile 1960**: This was one of the largest on record**, with magnitude attained. This has led to at least 5,000 deaths and millions of homelessness.

2011 Tohoku Japan**: This is the largest earthquake in Japan's history**, with a magnitude of magnitude. The ** triggered a series of tsunamis and nuclear leaks that killed more than 10,000 people.

2004 Indian Ocean** and tsunami: This was one of the strongest in history, with a magnitude of to. ** triggered a series of tsunamis that killed at least 230,000 people.

1556 Hanzhong**: This ** is one of the worst** in Chinese history, with a magnitude of more than ever. **Caused a large number of people**, with an estimated 800,000 to 1 million deaths.

Haiti 2010**: This earthquake is one of the largest on record in Haiti. It has caused more than 220,000 shed deaths and millions of homelessness.

Legal analysis: Accidents and disasters occur in the process of people's production and life, are directly caused by people's production and life activities, violate people's will, force activities to stop temporarily or permanently, and cause a large number of people, economic losses or environmental pollution.

Legal basis: Article 3 of the Emergency Response Law of the People's Republic of China: "Emergencies" as used in this Law refers to natural disasters, accidents, public health incidents, and social security incidents that occur suddenly, cause or may cause serious social harm, and require emergency response measures to be taken.

According to factors such as the degree of social harm and the scope of impact, natural disasters, accident disasters, and public health incidents are divided into four levels: particularly significant, major, relatively large, and general. Where laws, administrative regulations, or *** provide otherwise, follow those provisions.

The grading standards for emergencies shall be formulated by the department determined by *** or ***.