| A | B |
|---|
| WHAT ARE THE FACTORS THAT DAMAGE OF SEISMIC VIBRATIONS ARE BASED ON? | damage depends on the building design,intensity,and length of time |
| WHAT ARE SOME DANGERS ASSOCIATED WITH EARTHQUAKES? | these include tsunamis, landslides, and fire. |
| LIST 3 FACTORS THAT AFFECT THE DEGREE OF DAMAGE OCCURING TO STRUCTURES AS RESULT OF AN EARTHQUAKE | 1.intensity and duration of vibrations 2. nature of material on which structure is built 3. design of structure |
| NAME THE STRUCTURE LEAST LIKELY TO BE DAMAGED IN A MAJOR EARTHQUAKE | steel-frame building |
| describe LIQUIFACTION | during an earthquake, loosely consolidated sediments saturated with water can turn into a liquid that cannot support buildings, thus collapsing |
| DURING AN EARTHQUAKE, VIOLENT SHAKING CAN CAUSE SOIL AND ROCK ON SLOPES TO FAIL, RESULTING IN __________? | landslides |
| RADON GAS EMISSIONS | scientists use this to measure along faults or fractures when predicting future earthquakes |
| DEFINE GROUND SUBSIDENCE | the sinking of the ground caused by earthquake vibrations |
| HOW MANY METHODS ARE USED TODAY TO MAKE SHORT-RANGE EARTHQUAKE PREDICTIONS? | none |
| SEISMIC GAP | an area along a fault where no earthquake activity has occurred for a long time |
| AREA PROTECTED FROM TSUNAMIS BY WARNING SYSTEM | coastal areas of the Pacific |
| DEFINE TSUNAMIS | destructive seismic sea waves |
| NAME THE TWO CAUSES OF TSUNAMIS | 1. a slab of ocean floor is displaced vertically along a fault 2. vibrations of earthquakes set off underwater landslides |
