An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. The largest earthquakes in historic times have been of magnitude slightly over 9, although there is no limit to the possible magnitude. Th...
地震的英⽂介绍What is earthquake?An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves（地震波）. Earthquakes are recorded with a seismometer（地震检波器）, also known as a seismograph（地震仪）. The moment magnitude of an earthquake is ...
1 ❶AnearthquakeisthevibrationofEarthproducedbytherapidreleaseofenergy.Mostoften, earthquakesarecausedbyslippagealongafaultinEarth’scrust.Theenergyreleasedradiatesinall directionsfromitssource,calledthefocus,intheformofwaves.Thesewavesareanalogousto thoseproducedwhenastoneisdroppedintoacalmpond.Justastheimpact...
buildingsandotherstructurescansurvivestrongearthquakesiftheyarebuiltwithsomelevelof flexibility.Inotherwords,theyneedtobeabletobendandmoveastheearthshakes. “Weneedtoletbuildingsmoveandwecanactuallyunderstandwheretheymightfail,and thengoinanddesignbuildingswiththatinmind.” Onebuildingdesigniscalleda“specialmomentframe...
Most earthquakes are quite small so they are not readily felt. Larger and more violent earthquakes are those that occur in a release of energy as the plates slide past or run into one another. Large earthquakes can focus on the boundaries where two plates meet, but they are not limited...
❶Anearthquakeis thevibrationofEarthproduced by therapidreleaseofenergy.Mostoften,earthquakes arecaused byslippagealongafaultinEarth’scrust. Theenergyreleasedradiates in alldirectionsfromitssource,called thefocus, in theformofwaves.Thesewavesareanalogoustothoseproducedwhenastoneisdroppedintoacalmpond.Justas...
地震作文:What is earthquake? an earthquake is the result of a sudden release of energy in the earth's crust that creates seismic waves(地震波). earthquakes are recorded with a seismometer(地震检波器), also known as a seismograph(地震仪). the moment magnitude of an earthquake is conventionally...
Normally, natural disasters, such as earthquakes,flood, drought, tsunami and landslide, undoubtedly cause severe damage, which may exert an adverse impact on many people. The government and social organisations should actively organise timely rescue...
How do earthquakes happen? Earthquakes happen all the time, on land and in the ocean – but the majority are so small that people do not even feel them. "The surface of the earth is made of tectonic plates, which are about 100 kilometers thick, they move around together....
In its most generic sense, the word earthquake is used to describe any seismic event―whether a natural phenomenon or an event caused by humans―that generates seismic waves. Earthquakes are caused mostly by rupture(破裂, 裂开) of geological faults(断层), but also by volcanic activity, landslide...