Area not reached by seismic waves from an earthquake
For other uses, see Shadowzone (disambiguation).
Seismic shadow zone (from USGS)
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A seismic shadow zone is an area of the Earth's surface where seismographs cannot detect direct P waves and/or S waves from an earthquake. This is due to liquid layers or structures within the Earth's surface. The most recognized shadow zone is due to the core-mantle boundary where P waves are refracted and S waves are stopped at the liquid outer core; however, any liquid boundary or body can create a shadow zone. For example, magma reservoirs with a high enough percent melt can create seismic shadow zones.
A seismic shadowzone is an area of the Earth's surface where seismographs cannot detect direct P waves and/or S waves from an earthquake. This is due...
notions of radar shadow, the clutter zone, and the clear zone. Airborne objects can exploit the radar shadowzone and clutter zone to avoid radar detection...
semisolid mantle and the liquid outer core. As a result, there is a P wave "shadowzone" between 103° and 142° from the earthquake's focus, where the initial...
penumbras overlap, the shadows appear to attract and merge. This is known as the shadow blister effect. The outlines of the shadowzones can be found by tracing...
was bundled with the PSP's camera attachment on launch. Invizimals: ShadowZone is a PlayStation Portable augmented reality video game developed by Novarama...
minimum zone (OMZ), sometimes referred to as the shadowzone, is the zone in which oxygen saturation in seawater in the ocean is at its lowest. This zone occurs...
turned into a shadow person. An episode of the 1985 Twilight Zone series titled "The Shadow Man" dealt with a teenage boy who had a shadow person living...
Stargate SG-1 "Shadow Play" (The Twilight Zone, 1959), an episode of The Twilight Zone starring Dennis Weaver "Shadow Play" (The Twilight Zone, 1985), an...
"Valley of the Shadow" is a 51-minute episode of the American television anthology series The Twilight Zone. In this episode, a reporter is held captive...
absorbs the transverse or shear waves (S-waves). Outside the seismic shadowzone, both types of wave can be detected but, because of their different velocities...
Shadowzone or shadowzone may refer to: Shadowzone, an area in which a secondary seismic wave is not detected due to it not being able to pass through...
following is a list of episodes from the USA Network original series The Dead Zone. The series premiered on June 16, 2002, and ended on September 16, 2007,...
Show (1997) (TV) - Charlie The Paper Brigade (1997) - Charlie Parker ShadowZone: The Undead Express (1996) (TV movie) - Zach Virtual Oz (1996) (TV) -...
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