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2008 Yingjiang Earthquakes
The 2008 Yingjiang earthquakes were a series of major earthquakes ranging from surface wave magnitude (Ms) 4.1 to 5.9 that struck Yingjiang County, Yunnan province, China between August 19 (in UTC; August 20 local time) and September 3. It caused 5 deaths, 130 injuries (21 of which were serious), and RMB 2.7 billion in direct economic damage. USGS put the magnitude of the strongest one to Mw 6.0. Earthquake According to the China Earthquake Administration (CEA) and its subordinatChina Earthquake Network Center(CENC), a Ms 5.0 earthquake struck Yingjiang County, Yunnan province, China on August 20, 2008 at 05:35:09 China Standard Time (CST – 2135 UTC, August 19, 2008). A CEA report published on September 17 described two additional strong quakes of Ms 4.9 and Ms 5.9 in the same area the following day; CENC's data base, on the other hand, did not include the earthquake of Ms 4.9 at 20:20 CST on August 21 as the CEA report described, but reveals additi ... [...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] |
Modified Mercalli Intensity Scale
The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the effects of an earthquake at a given location, distinguished from the earthquake's inherent force or strength as measured by seismic magnitude scales (such as the "" magnitude usually reported for an earthquake). While shaking is caused by the seismic energy released by an earthquake, earthquakes differ in how much of their energy is radiated as seismic waves. Deeper earthquakes also have less interaction with the surface, and their energy is spread out across a larger volume. Shaking intensity is localized, generally diminishing with distance from the earthquake's epicenter, but can be amplified in sedimentary basins and certain kinds of unconsolidated soils. Intensity scales empirically categorize the intensity of shaking based on the effect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August 2008 Events In China
August is the eighth month of the year in the Julian and Gregorian calendars, and the fifth of seven months to have a length of 31 days. Its zodiac sign is Leo and was originally named ''Sextilis'' in Latin because it was the 6th month in the original ten-month Roman calendar under Romulus in 753 BC, with March being the first month of the year. About 700 BC, it became the eighth month when January and February were added to the year before March by King Numa Pompilius, who also gave it 29 days. Julius Caesar added two days when he created the Julian calendar in 46 BC (708 AUC), giving it its modern length of 31 days. In 8 BC, it was renamed in honor of Emperor Augustus. According to a Senatus consultum quoted by Macrobius, he chose this month because it was the time of several of his great triumphs, including the conquest of Egypt. Commonly repeated lore has it that August has 31 days because Augustus wanted his month to match the length of Julius Caesar's July, but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 Earthquakes
Earthquakes in 2008 resulted in about 88,011 fatalities. The 2008 Sichuan earthquake was the deadliest with 87,587 fatalities, and also the largest at 8.0 on the moment magnitude scale. Other significant earthquakes struck Pakistan, Kyrgyzstan, the Democratic Republic of Congo, Russia, Japan, Colombia, and other parts of China. Compared to other years Overall By death toll * Note: At least 10 dead By magnitude * Note: At least 7.0 Magnitude By month January * A magnitude 6.3 earthquake struck Papua New Guinea on January 1. * A magnitude 6.0 earthquake struck Sumatra, Indonesia on January 4. * A magnitude 6.6 earthquake struck Haida Gwaii, Canada on January 5. * A magnitude 6.4 earthquake struck Haida Gwaii, Canada on January 5. * A magnitude 6.2 earthquake struck Greece on January 6. * A magnitude 5.9 earthquake struck Papua, Indonesia on January 7. Six people were injured and 22 homes were damaged. * A magnitude 6.4 earthquake struck Tibet, China on January 9. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 Disasters In China
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed division algebra. * the first numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Myanmar
Myanmar (also known as Burma) is the northwesternmost country of mainland Southeast Asia located on the Indochinese peninsula. With an area of 261,228 sq mi (676,578 sq km), it is the second largest country in Southeast Asia and the largest on mainland Southeast Asia. The kite-shaped country stretches from 10'N to 20'N for 1,275 miles (2,050 km) with a long tail running along the western coast of the Malay Peninsula. Myanmar lies along the Indian and Eurasian Plates, to the southeast of the Tibetan Plateau. To its west is the Bay of Bengal and to its south is the Andaman Sea. The country is nestled between several mountain ranges with the Arakan Mountains on the west and the Shan Plateau dominating the east. The central valley follows the Irrawaddy River, the most economically important river to the country with 39.5 million people, including the largest city Yangon, living within its basin. The country is home to many diverse ethnic groups, with 135 officially recognize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Yunnan
An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from those that are so weak that they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time period. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. The word ''tremor'' is also used for non-earthquake seismic rumbling. At the Earth's surface, earthquakes manifest themselves by shaking and displacing or disrupting the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes c ... [...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 Myanmar
Myanmar is one of the most seismically active regions in the world. Oblique subduction, block rotation, and a transform margin has been responsible for the seismic activities of the country. The Sagaing Fault is one of the largest sources of earthquakes in the country, having produced deadly quakes in the past centuries. Along the western coast, offshore Rahkine State, the Sunda Megathrust, where the Indian Plate dives beneath the Burma Plate is capable of producing large events and tsunamis like the 2004 earthquake. Intermediate depth earthquakes east of the Chin Range also pose a risk to people. The Shan Plateau is another source of earthquakes, hosting many active strike-slip faults that accommodate block rotation of the Sunda Plate. Notable earthquakes in the history of Myanmar include the following: Earthquakes Tsunamis affecting Myanmar * 1881 Nicobar Islands earthquake * 1941 Andaman Islands earthquake * 2004 Indian Ocean earthquake See also *Geology of Myanmar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In 2008
Earthquakes in 2008 resulted in about 88,011 fatalities. The 2008 Sichuan earthquake was the deadliest with 87,587 fatalities, and also the largest at 8.0 on the moment magnitude scale. Other significant earthquakes struck Pakistan, Kyrgyzstan, the Democratic Republic of Congo, Russia, Japan, Colombia, and other parts of China. Compared to other years Overall By death toll * Note: At least 10 dead By magnitude * Note: At least 7.0 Magnitude By month January * A magnitude 6.3 earthquake struck Papua New Guinea on January 1. * A magnitude 6.0 earthquake struck Sumatra, Indonesia on January 4. * A magnitude 6.6 earthquake struck Haida Gwaii, Canada on January 5. * A magnitude 6.4 earthquake struck Haida Gwaii, Canada on January 5. * A magnitude 6.2 earthquake struck Greece on January 6. * A magnitude 5.9 earthquake struck Papua (province), Papua, Indonesia on January 7. Six people were injured and 22 homes were damaged. * A magnitude 6.4 earthquake struck Tibet, Chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Seismic Intensity Scale
The China seismic intensity scale (CSIS) is a national standard in the People's Republic of China used to measure seismic intensity. Similar to EMS-92 on which CSIS drew reference, seismic impacts are classified into 12 degrees of intensity, or ''liedu'' (, literally "degrees of violence") in Roman numerals from I for insensible to XII for landscape reshaping. The scale was initially formalized by the China Earthquake Administration (CEA) in 1980, therefore often referred to by its original title as "China Seismic Intensity Scale (1980)". It was later revised, and adopted as a national standard, or Guobiao, series GB/T 17742-1999 by then National Quality and Technology Supervision Administration (noGeneral Administration of Quality Supervision, Inspection, and Quarantine of P.R.C. AQSIQ) in 1999. The standard was set for revision not long before the 2008 Sichuan earthquake. ''Liedu'' scale Unlike the magnitude scales that objectively estimate the released seismic energy, ''l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
