|
2021 Dali Earthquake
On May 21, 2021, a 6.1 magnitude earthquake strucked the Dali City, Yunnan, China, at a depth of 10.0 km. Three people died during the quake, while another 32 were injured. The earthquake was referred by the Chinese media as the 5.21 earthquake or 2021 Yangbi earthquake. Tectonic setting Yunnan lies at the southeastern boundary of the Tibetan Plateau where strike-slip faults accommodate crustal rotation resulting from deformation caused by the ongoing collision between the Indian Plate and the Eurasian Plate which formed the Himalayas and the Tibetan Plateau. The presence of active faults make the region prone to moderate to large earthquakes. Major events in Yunnan Province have occurred in 1833, 1974, 1976, 1988 and 2014. The nearest active faults in Dali City are the Xiaojiang Fault and Red River Fault. The Red River Fault caused two deadly earthquakes in 1925 near Dali and another in 1970 in Tonghai county. Earthquake The earthquake was the result of strike-slip faulting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Standard Time
The time in China follows a single standard time offset of UTC+08:00 (eight hours ahead of Coordinated Universal Time), even though the country spans almost five geographical time zones. The official national standard time is called ''Beijing Time'' (BJT, ) domestically and ''China Standard Time'' (CST) internationally. Daylight saving time has not been observed since 1991. China Standard Time (UTC+8) is consistent across Mainland China, Hong Kong, Macau, Taiwan, Philippines, Singapore, Brunei, Mongolia, etc. History In the 1870s, the Shanghai Xujiahui Observatory was constructed by a French Catholic missionary. In 1880s officials in Shanghai French Concession started to provide a time announcement service using the Shanghai Mean Solar Time provided by the aforementioned observatory for ships into and out of Shanghai. By the end of 19th century, the time standard provided by the observatory had been switched to GMT+08:00. The practice has spread to other coastal ports, and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2014 Ludian Earthquake
The 2014 Ludian earthquake struck Ludian County, Yunnan, China, with a moment magnitude of 6.1 on 3 August. The earthquake killed at least 617 people, injuring at least 2,400 others. , 112 people remain missing. Over 12,000 houses collapsed and 30,000 were damaged. According to the United States Geological Survey, the earthquake occurred WSW of Zhaotong city at 16:03 local time (08:03 UTC). Tectonic setting The Ludian earthquake occurred at 16:03, Beijing time (08:03 UTC), on 3 August 2014. American geological surveys indicated that the epicenter was WSW of Zhaotong city at a depth of , in the quake-prone province of Yunnan in southwestern China, about from Zhaotong. It was especially felt in the province of Yunnan, and less in the provinces of Guizhou and Sichuan. The magnitude of the earthquake was 6.1 on the moment magnitude scale, with an intensity of up to VII (''Very strong'') on the Mercalli intensity scale. The quake was the result of a strike-slip fault, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Disasters In China
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In Yunnan
This is a list of earthquakes that have occurred in or have affected Yunnan Province in China. Major earthquakes (≥Magnitude 7.0) Major earthquakes (Magnitude 6.0–6.9) Moderately large earthquakes (≤Magnitude 5.9) See also * List of earthquakes in China * List of earthquakes in Myanmar * List of earthquakes in Sichuan * Geology of China The geology of China (or the geological structure of the People's Republic of China) consists of three Precambrian cratons surrounded by a number of orogenic belts. The modern tectonic environment is dominated by the continued collision of India ... References {{Earthquakes in China Earthquakes in Yunnan Earthquakes in China Disasters in Yunnan Disasters in China ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In China
This is a List of earthquakes in China, part of the series of lists of disasters in China. China has been the location of some of the most deadly earthquakes in history. The deadliest was the 1976 Tangshan earthquake with 300,000+ deaths. Earthquakes in the loess plateau where residents lived in yaodong caves tended to have big casualties, including the 1303 Hongdong and 1920 Haiyuan earthquakes. The most recent earthquake with a death toll of more than a thousand was the 2010 Yushu earthquake, which killed 2,698. The collision of India with the rest of Asia has led to seismic activity throughout Western China, particularly in Tibet and the Yunnan, Xinjiang, Sichuan, Gansu and Qinghai provinces. However, these regions in comparison with Eastern China have a low population density. These areas also in general have poorer transport and building codes. Throughout China, poor building codes increases the damage and loss of life from earthquakes. The northern regions of Eastern Chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In 2021
{{Infobox earthquakes in year, year=2021, 9.0+=0, 4.0–4.9=14,643, 5.0–5.9=2,046, 6.0–6.9=141, 7.0–7.9=16, 8.0–8.9=3, strongest=8.2 {{M, w, link=y {{flagicon, United StatesUnited States, deadliest={{nowrap, 7.2 Mw {{flagicon, Haiti Haiti 2,248 deaths, location_map=Earth, fatalities=2,478, location_map_places= {{Location map~, Earth, mark = Green pog.svg, lat_deg = 28.232, lon_deg = 104.189 {{Location map~, Earth, mark = Green pog.svg, lat_deg = -2.757, lon_deg = 122.240 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 45.431, lon_deg = 16.244 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 40.116, lon_deg = 33.275 {{Location map~, Earth, mark = Green pog.svg, lat_deg = -2.981, lon_deg = 118.894 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 26.926, lon_deg = 55.186 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 26.926, lon_deg = 55.186 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 37.176, lon_deg = -3.744 {{Location map~, Earth, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangbi County
Yangbi Yi Autonomous County () is a county of the Dali Bai Autonomous Prefecture located in the west of Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ... Province, China. Administrative divisions Yangbi Yi Autonomous County has 4 towns and 5 townships. ;4 towns ;5 townships Climate References External links Yangbi County Official Website County-level divisions of Dali Bai Autonomous Prefecture Yi autonomous counties {{Yunnan-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Maduo Earthquake
The 2021 Maduo earthquake, also known as the 5.22 earthquake struck Madoi County in Qinghai Province, China on 22 May at 02:04 local time. The earthquake had a moment magnitude and surface-wave magnitude of 7.4. Highway bridges, roads and walls collapsed as a result of the earthquake. According to an anonymous source, at least 20 people were killed, 300 were injured, and 13 were missing. Officials stated that there were no deaths but 19 people sustained minor injuries. It was the strongest in China since 2008. It was assigned a maximum intensity of X in Machali, Maduo County on the China seismic intensity scale and Modified Mercalli intensity scale. This earthquake was preceded by another unrelated earthquake that occurred 5 hours earlier in Yunnan. Tectonic setting Western Sichuan is situated at the edge of the Tibetan Plateau in a vast zone of complex continental deformation caused by the collision of the Indian Plate with the Eurasian Plate. As the thrusting of the Indian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-wave Magnitude
The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements of Rayleigh surface waves that travel along the uppermost layers of the Earth. This magnitude scale is related to the local magnitude scale proposed by Charles Francis Richter in 1935, with modifications from both Richter and Beno Gutenberg throughout the 1940s and 1950s. It is currently used in People's Republic of China as a national standard (GB 17740-1999) for categorising earthquakes. Recorded magnitudes of earthquakes through the mid 20th century, commonly attributed to Richter, could be either M_s or M_L. Definition The formula to calculate surface wave magnitude is: :M_s = \log_\left(\frac\right)_ + \sigma(\Delta)\,, where A is the maximum particle displacement in surface waves (vector sum of the two horizontal displacements) in μm, T is the corresponding period in s (usually 20 2 seconds), Δ is the epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Earthquake Administration
The China Earthquake Administration (CEA), () is mandated by the ''Law of the People's Republic of China on Protecting Against and Mitigating Earthquake Disasters of PRC'' to enforce the earthquake administration in the nation under the administration of State Council of the People's Republic of China. Some English text use the name Chinese Seismic Bureau (CSB). In older text, it was also referred to by its former name, National Earthquake Bureau (NEB) or National Seismic Bureau (NSB). Bureaus CEA presently has nine bureaus, two of which directly under the control of the Chinese Communist Party (CCP). * Administrative Office and Office of Policy Research () * Bureau of Development and Finance () * Bureau of Monitoring and Prediction () * Bureau of Earthquake Damage Protection () * Bureau of Earthquake Emergency Response and Relief () * Bureau of Personnel, Education, Science and Technology and Bureau of International Cooperation () * (Chinese Communist) Party Committee of Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Earthquake Networks Center
The China Earthquake Networks Center (CENC; ) is an institution under the China Earthquake Administration The China Earthquake Administration (CEA), () is mandated by the ''Law of the People's Republic of China on Protecting Against and Mitigating Earthquake Disasters of PRC'' to enforce the earthquake administration in the nation under the administrati .... Established on October 18, 2004. It is one of the most important hubs of China's earthquake disaster reduction network and the basis of information for the international community. It is responsible for the operational guidance and management of the national seismic network, short-term earthquake prediction, earthquake data collection, report processing, scientific journal management, seismological construction, technological research and operations for emergency response and relief including the State Council of the People's Republic of China's earthquake relief headquarters. References Earthquakes in China {{China- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moment Magnitude Scale
The moment magnitude scale (MMS; denoted explicitly with M or or Mwg, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude/Richter scale () defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often says "Richter scale" when referring to the moment magnitude scale. Das et al. (BSSA 2019) introduced the Das Magnitude Scale (Mwg) as an extension of the moment magnitude scale. This scale serves as a refinement in earthquake magnitude measurement, offering valuable insights into seismic characteristics. Like the original moment magnitude scale (Mw), Mwg employs a logarithmic scale, ensuring consistency in comparing earthquake magnitudes. Despite being a more rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
