Related questions. 1  Swelling in one foot/ankle significantly more than the other during pregnancy. 2  Just had C-section few days ago. 3  I gave birth a week ago and got an epidural.  I gave birth 8 weeks ago and i still have slight swelling in my right ankle.
An earthquake (also known as a quake, tremor or temblor) is the perceptible shaking of the surface of the Earth, which can be violent enough to destroy major buildings and kill thousands of people.The severity of the shaking can range from barely felt to violent enough to toss people around.n its most general sense, the word earthquake is used to describe any seismic event â whether natural or caused by humans â that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests.
Ground-shaking research: How humans trigger earthquakes. A number of earthquakes occurred during the 1930s while Lake Mead was being impounded behind Hoover Dam (shown here in May 1935), including a magnitude-5 event in 1939. Filling reservoirs is one of the ways humans can trigger earthquakes. Credit: U.S. Bureau of Reclamation.