events
The 2001 Nisqually earthquake, having a moment magnitude of 6.8, with epicenter in the southern Puget Sound, damages Seattle metropolitan area.
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2001 Nisqually earthquake
Severe earthquake in Washington, US
The 2001 Nisqually earthquake occurred at 10:54:32 local time on February 28, 2001, and lasted nearly a minute. The intraslab earthquake had a moment magnitude of 6.8 and a maximum Mercalli intensity of VIII (Severe). The epicenter was in the southern Puget Sound, northeast of…Source: Wikipedia (CC BY-SA)
Moment magnitude scale
Measure of earthquake size, in terms of the energy released
The moment magnitude scale is a measure of an earthquake's magnitude based on its seismic moment. Mw was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude/Richter scale (ML ) defined by Charles Francis Richter in 1935, it uses a…Source: Wikipedia (CC BY-SA)
Epicenter
Point on the Earth's surface that is directly above the hypocentre or focus in an earthquake
The epicenter, epicentre, or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.Source: Wikipedia (CC BY-SA)
Puget Sound
Sound in Washington, United States
Puget Sound is a complex estuarine system of interconnected marine waterways and basins located on the northwest coast of the U.S. state of Washington. As a part of the Salish Sea, the sound has one major and two minor connections to the Strait of Juan de Fuca, which in turn…Source: Wikipedia (CC BY-SA)
Seattle metropolitan area
Metropolitan statistical area in Washington, United States
The Seattle metropolitan area is an urban conglomeration in the U.S. state of Washington that comprises Seattle, its surrounding satellites and suburbs. The United States Census Bureau defines the Seattle–Tacoma–Bellevue, WA metropolitan statistical area as the three most…Source: Wikipedia (CC BY-SA)
February 28
Day of the year
February 28 is the 59th day of the year in the Gregorian calendar; 306 days remain until the end of the year.Source: Wikipedia (CC BY-SA)