Earthquake Hazard Map Flashcards
(19 cards)
Could experience shaking of moderate intensity
Gray (B) - Moderate Shaking; felt by all, many frightened; some heavy furniture moved; a few instances of fallen plaster. Damage slight
They are typically created for
natural hazards, such as
earthquakes, volcanoes,
landslides, flooding, and tsunamis.
Hazard maps help prevent
serious damage and deaths.
These are
intersecting lines to help
locate specific places on the
map. In some maps, it is also
called “______.”
Grid Reference; border
This will
give you the proper direction.
This is also called
“_______.”
Compass rose; orientation
It explains
the meaning of symbols and
colour.
Legend or Key
Near major active faults capable of producing the most intense shaking
Red (E) - Strongest shaking; damage considerable in specially designed structures; frame structures thrown out of plumb; damage great in substantial building, with partial collapse; buildings shifted of foundations
highlights areas that are affected by or are vulnerable
to a particular hazard.
Hazard Map
It shows the
proportion of the map to real
life.
Scale
7 Components of a Map
Compass rose
Title
Symbols
Legend or Key
Colour
Scale
Grid Reference
Could experience very strong shaking (the darker the color, the stronger the shaking)
Light Brown, Darker Brown, Darkest Brown (D0-D2) - Very strong shaking; damage slight in specially designed structures; considerable damage in ordinary substantial building with partial collapse; damage great in poorly built structures
These are
pictures instead of symbols.
Symbols
The colors in the maps
denote “seismic design
categories” (SDCs), which
reflect the
likelihood of
experiencing earthquake
shaking of various
intensities.
Hazard maps provide important information to
help people
understand the risks of natural
hazards and to help mitigate disasters.
Could experience strong shaking;
Yellow (C) - Strong shaking; damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poor built structures.
It highlights the
important information to help
interpret maps.
Colour
Very small probability of experiencing damaging earthquake effects
White (A)
It tells what the map
is about.
Title
A _______ will help us in
interpreting an
earthquake map.
Seismic Design
Category (SDC)
