Earthquake and Faults Flashcards

(32 cards)

1
Q

the outer most layer of the earth

A

Crust

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2
Q

this can be (35 - 70 km) thick

A

Continental crust (crust)

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3
Q

is thinner with thickness of about (5 to 10 km)

A

Oceanic crust (crust)

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4
Q

this is what the crust and the uppermost part of mantle form that is solid rocky sphere

A

lithosphere

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5
Q

this is what lithosphere thats brocken into segments callled

A

Lithosphere plates / tectonic plates

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6
Q

This theory is that these plates are moved by the hot plastic mantle beneath the lithosphere

A

Plate tectonics

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7
Q

2nd layer, its is the dense layer of hot semi solid and solit rock and mostly made up of ferromagnesium. (2900 km)

A

Mantle

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8
Q

3rd layer of the earth and the hottest part

A

Core

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9
Q

is a liquid layer about (2200 km) in thickness and made up of “dense iron”

A

outer core

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10
Q

is a solid layer 1250 km thickness and it is made of “iron and nickel”

A

inner core

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11
Q

is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.

A

Pacific ring of fire

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12
Q

a fracture or zone of fractures between two blocks of rock that moves with respect to another

A

Faults

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13
Q

3 types of Faults

A

Dip-slip fault/normal fault - Reverse fault - Transform fault

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14
Q

Origin of the earthquake

A

Focus/hypocenter

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15
Q

The point on earths surface, about the focus

A

Epicenter

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16
Q

pertains to the size and strength of the earthquake

17
Q

is the observed effects of an earthquake

18
Q

numerals used to scale
1. Magnitude
2. Intensity

A
  1. Hindu-arabic numerals (1-9)
  2. roman numerals (I-X)
19
Q

an insturement used to detect and record eathquakes and seismic waves

20
Q

what is PHILVOLCS

A

Phillipine Institute of Volcanology and seismology

21
Q

series of huge waves caused by an earthquake

22
Q

Before an earthquake (5)

23
Q

During an earthquake (3)

24
Q

After an earthquake (4)

25
This is the fastest seismic wave and are high frequency seismic waves
P-wave (Primary wave)
26
Seismic wave that cannot travel in liquid and is slower than P-wave
S-waves (Secondary wave)
27
Seismic waves of low frequency and travel from focus to up to the epicenter
L-wave (Love wave)
28
The person L-wave was named after
Augustus Edward Hough Love
29
Travels the slowest among the seismic waves
R-wave (Rayleigh wave)
30
a person that can tell the location of the epicenter by measuring the time lag between the arrival of the P and S-wave
Siesmologist
31
Waves of energy caused by sudden breaking of rock within the earth or an explosion
Seismic wave
32
Process where the epicenter intersects in the 3 circles
Triangulation