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During an earthquake, seismic waves propagates in all directions from the hypocenter. Seismic shadowing occurs on the opposite side of the Earth from the earthquake epicenter because the planet's liquid outer core refracts the longitudinal or compressional while it absorbs the transverse or shear waves . Outside the seismic shadow zone, both ...
Seismic base isolation, also known as base isolation, [ 3] or base isolation system, [ 4] is one of the most popular means of protecting a structure against earthquake forces. [ 5] It is a collection of structural elements which should substantially decouple a superstructure from its substructure that is in turn resting on the shaking ground ...
The Richter scale[ 1] ( / ˈrɪktər / ), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [ 2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude ...
Largest. 7.9 M w. 1802 Vrancea earthquake. Deadliest. 7.2 M w. 1977 Vrancea earthquake 1,578 killed. This is a list of earthquakes in Romania, including any notable historical earthquakes that have epicenters within the current boundaries of Romania, or which caused significant effects in this area.
Massage table. A massage table is used by massage therapists to position the client to receive a massage. Most are manufactured with client comfort and therapist ergonomics in mind. A typical table has an easily cleaned, heavily padded surface, and a face cradle that allows the client to breathe easily while lying face down.
Earthquake preparedness. Preparations for earthquakes can consist of survival measures, preparation that will improve survival in the event of an earthquake, or mitigating measures, that seek to minimise the effect of an earthquake.Common survival measures include storing food and water for an emergency, and educating individuals what to do ...
Earthquake insurance is available as an endorsement or a stand-alone policy. Due to the possibility of aftershocks, insurance companies may impose a waiting period anywhere from ...
Seismic microzonation is defined as the process of subdividing a potential seismic or earthquake prone area into zones with respect to some geological and geophysical characteristics of the sites such as ground shaking, liquefaction susceptibility, landslide and rock fall hazard, earthquake-related flooding, so that seismic hazards at different locations within the area can correctly be ...