- 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.
- Jefferson County — Thumbnail History (historylink.org)
Jefferson County, located on the Olympic Peninsula in northwestern Washington, was created by the Oregon Territorial Legislature on December 22, 1852 from a portion of Lewis County. It was named in honor of President Thomas Jefferson who, by commissioning the Lewis and Clark Expedition (1804-1806), was instrumental in the exploration of the Pacific Northwest…