An earthquake 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 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.
Seismic waves are waves of acoustic energy that travel through the Earth. They are a result of earthquakes,volcanic eruptions,magma movement,large landslides,and large man-made explosions that give out low-frequency acoustic energy. Seismic waves are studied by seismologists,who record the waves using seismometers,hydrophones,or accelerometers. Seismic waves are distinguished from seismic noise,which is persistent low-amplitude vibration arising from a variety of natural and anthropogenic sources.
The Washington Monument is an obelisk shaped building within the National Mall in Washington,D.C.,built to commemorate George Washington,once commander-in-chief of the Continental Army (1775–1784) in the American Revolutionary War and the first President of the United States (1789–1797). Located almost due east of the Reflecting Pool and the Lincoln Memorial,the monument,made of marble,granite,and bluestone gneiss,is both the world's tallest predominantly stone structure and the world's tallest obelisk,standing 554 feet 7+11⁄32 inches (169.046 m) tall according to the U.S. National Geodetic Survey or 555 feet 5+1⁄8 inches (169.294 m) tall,according to the National Park Service. It is the tallest monumental column in the world if all are measured above their pedestrian entrances. Overtaking the Cologne Cathedral,it was the tallest structure in the world between 1884 and 1889,after which it was overtaken by the Eiffel Tower in Paris.
Tangshan is a coastal,industrial prefecture-level city in the northeast of Hebei province. It is located in the eastern part of Hebei Province and the northeastern part of the North China Plain. It is located in the central area of the Bohai Rim and serves as the main traffic corridor to the Northeast. The city faces the Bohai Sea in the south,the Yan Mountains in the north,Qinhuangdao across the Luan River to the east,and Tianjin to the west.
North China University of Science and Technology is a university in Tangshan City,Hebei Province,People's Republic of China. North China University of Science and Technology is one of the ten key universities of Hebei Province,China. It is a comprehensive university taking engineering and medicine as the backbone and pursuing a harmonious development of engineering,medicine,sciences,economics,management,law and humanities. Education programs are provided for masters,bachelors,international students and adult students.
Beihai Park is a public park and former imperial garden located in the northwestern part of the Imperial City,Beijing. First built in the 11th century,it is among the largest of all Chinese gardens and contains numerous historically important structures,palaces,and temples. Since 1925,the place has been open to the public as a park. It is also connected at its northern end to the Shichahai.
The 1976 Tangshan earthquake was a 7.6 earthquake that hit the region around Tangshan,Hebei,China,at 3:42 a.m. on 28 July 1976. The maximum intensity of the earthquake was XI (Extreme) on the Mercalli scale. In minutes,85 percent of the buildings in Tangshan collapsed or were rendered unusable,all services failed,and most of the highway and railway bridges collapsed or were seriously damaged. The official report claimed 242,769 deaths and 164,851 serious injuries in Tangshan,but when taken into account the missing,the injured who later died and the deaths in nearby Beijing and Tianjin,scholars accepted at least 300,000 died,making it the deadliest earthquake in China and among the top disasters in China by death toll.
The Gate of China was a historical ceremonial gateway in Beijing,China,located near the center of latter-day Tiananmen Square. It was demolished in 1954. This gate formed the southern gate of the Imperial City during the Ming and Qing dynasties. It was situated on the central axis of Beijing,to the north of Zhengyang Gate,and south of Tiananmen. Unlike these two defensive gates,the Gate of China was a purely ceremonial gateway,with no ramparts,but was a brick-stone structure with three gateways.
The 1976 Guatemala earthquake struck on February 4 at with a moment magnitude of 7.5. The shock was centered on the Motagua Fault,about 160 km northeast of Guatemala City at a depth of 5 kilometers (3.1 mi) near the town of Los Amates in the department of Izabal.
The Temple of the Earth in Beijing,China,is located in the northern part of central Beijing,around the Andingmen area and just outside Beijing's second ring road. It is also located just a few hundred yards north of Yonghe Temple. At 42.7 hectares,it is the second largest of the four Temples of Beijing behind only the Temple of Heaven.
On February 4,1975 at 19:36 CST,an earthquake of 7.5 and intensity (MMI) IX hit the city of Haicheng,Liaoning,China. Much of the city was evacuated before the earthquake,so few died from building collapse,however,many died from fire and hypothermia in the subsequent days. The evacuees lived during the deep winter in self-made tents made of tree branches,bed sheets,tarps and straw,372 froze to death and 6,578 suffered frostbite,while a fire burned 341 to death and 980 suffered non-fatal burns. The fire was one of the most notable earthquake-induced fires in China,triggered from a combination of cooking,winter heating and lighting.
The Kraton Ngayogyakarta Hadiningrat is a palace complex in the city of Yogyakarta,Yogyakarta Special Region,Indonesia. It is the seat of the reigning Sultan of Yogyakarta and his family. The complex is a center of Javanese culture,and contains a museum displaying royal artifacts. It is guarded by the Yogyakarta Kraton Guards.
Tiananmen Square or Tian'anmen Square is a city square in the city center of Beijing,China,named after the eponymous Tiananmen located to its north,which separates it from the Forbidden City. The square contains the Monument to the People's Heroes,the Great Hall of the People,the National Museum of China,and the Mausoleum of Mao Zedong. Mao Zedong proclaimed the founding of the People's Republic of China in the square on October 1,1949;the anniversary of this event is still observed there. The size of Tiananmen Square is 765 x 282 meters. It has great cultural significance as it was the site of several important events in Chinese history.
The China Millennium Monument is a monumental complex centered around a structure that evokes both a monumental Chinese altar and a sundial. Associated with Jiang Zemin,it was championed from 1994 by CCP official Zhu Xiangyuan. It was completed in 1999 ahead of the Millennium celebrations,for which it was the principal Chinese venue. Since 2006,it has housed the Beijing World Art Museum.
The Circular Mound Altar is an outdoor empty circular platform on three levels of marble stones,located in Beijing,China. It is part of the Temple of Heaven.
Edificio Miguel E Abed,located on Eje Central Lázaro Cárdenas #13 in the Historic Center of Mexico City,opposite the Torre Latinoamericana. It was built by Mexican-Lebanese businessman Miguel E. Abed who was also one of the founders of the Centro Libanes in Mexico City along with former president Miguel Avila Camacho. The building is equipped with three high-speed elevators (lifts) which move at 6.0 meters per second. In the building are offices of various companies,that are installed since the early 1960s. In 1952,the building exceeded the Tower Anahuac for four years,to become the tallest building in Mexico until 1956 - the year in which construction was completed on the tallest building in Latin America for its time,the Torre Latinoamericana.
The Bến Dược Memorial Temple is a cultural history project of the Communist Party Committee and people of Ho Chi Minh City,Vietnam. It was built to memorialize the significant contributions of the soldiers and people who were killed in the Saigon-Gia Định region during the anti-American and anti-French fighting. The temple is sited at the Bến Dược hamlet,PhúMỹHưng village,end of the CủChi tunnels.
The 1902 Turkestan earthquake devastated Xinjiang,China,near the Kyrgyzstan border. It occurred on August 22,1902,at about 8:00 or 9:00 am local time with an epicenter near the Tien Shan mountains. The thrust earthquake measured 7.7 on the moment magnitude scale (Mw ) and initiated at a depth of 18 km (11 mi). The Tien Shan mountains is situated in a zone of complex convergence caused by the Indian–Eurasian plate interaction. This zone is actively deforming—accommodated by active thrust faults responsible for seismic activity. The mainshock was preceeded by an intense series of foreshocks in the years prior. Many aftershocks followed,several were larger than magnitude 6.0 and one measured magnitude 6.8–7.3. These aftershocks were recorded for three years. Additional shocks were recorded over a decade after the mainshock. An estimated 5,650–10,000 people were killed in the mainshock. Widespread destruction occurred—at least 30,000 homes were destroyed. Shaking was felt across an area of 927,000 km2 (358,000 sq mi). The effects of the earthquake led government officials to relieve victims of taxes and provide compensation.
The region of Zhili was struck by a major earthquake with an estimated magnitude of 7.5 or 7.4 on June 12,1830. The epicentre was close to Cixian,which suffered the most severe damage. A total of 7,477 people died as a result of the earthquake.
