- Earthquake shakes Puget Sound on June 29, 1833. (historylink.org)
On June 29, 1833, an earthquake shakes the Puget Sound region. William Tolmie (1812-1886), the young Hudson’s Bay Company (HBC) doctor recently left temporarily in charge of Fort Nisqually, records the event in his journal. His journal entry is the first surviving eyewitness account of an earthquake in the region.
- Earthquake (Wikipedia)
An earthquake, also called a quake, tremor, or temblor, is the shaking of the Earth’s surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak 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. The seismicity at a particular location in the Earth is the average rate of seismic energy released per unit volume.
- Earthquake (en.wikiquote.org)
An Earthquake (also known as a quake, tremor or temblor) is motion of the Earth’s crust which occurs with a sudden release of energy that creates seismic waves. The seismicity, seismism or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time. Tectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane.Earthquake means the shaking of the Earth’s surface. It is a sudden trembling of the surface of the Earth. Earthquakes certainly are a terrible natural disaster. Furthermore, Earthquakes can cause huge damage to life and property. Some Earthquakes are weak in nature and probably go unnoticed. In contrast, some Earthquakes are major and violent. The major Earthquakes are almost always devastating in nature. Most noteworthy, the occurrence of an Earthquake is quite unpredictable. This is what makes them so dangerous.
- Earthquake safety (en.wikivoyage.org)
Earthquakes are some of the most serious natural disasters. Fortunately major earthquakes occur, even on a global scale, only a few times a year and hence short-term visitors are very unlikely to end up in one. Nevertheless, if you do end up in one, there is a serious risk to your life and health.