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Which type of tectonic plate boundary is located at mid-ocean ridges?
DIVERGENT
Where should people evacuate to during a tsunami?
2 MILES INLAND FROM COASTLINE
HIGH IN ELEVATION AS POSSIBLE
In which Earth layer does the pressure reach 1.5 million atmosphere?
STIFFER MANTLE
What is a rift zone?
LINEAR FEATURE OF EARTH WHERE NEW CRUST IS BEING CREATED
The first S-wave arrived at a seismograph station 11 minutes after an earthquake occurred.
How long after the arrival of the first P-wave did this first S-wave arrive?
4 MIN, 55 SECONDS
Two features that may occur at convergent plate boundaries
MOUNTAINS & SUBDUCTION ZONES/TRENCHES
List the 4 main layers of earth in order
CRUST> MANTLE >OUTER CORE>INNER CORE
The inferred temperature at the interface between the stiffer mantle and the outer core is closest to
5,000 DEGREES CELSIUS
The region in which earth’s crust is destroyed as it is pulled down into the mantle is known as the _______ zone
SUBDUDUCTION
Which is faster, a P-wave or S-wave?
P WAVE
CAN TRAVEL THROUGH SOLIDS & LIQUIDS
Why does Japan experience a large amount of tectonic activity while the east coast of the United States barely experiences anything?
JAPAN IS LOCATED ON A TECTONIC PLATE BOUNDARY SO IT EXPERIENCES MORE EARTHQUAKES THAN THE EAST COAST OF THE USA
What is the driving force for the movement of lithospheric plates in Earth’s mantle?
CONVECTION CURRENTS
What is the outer core made out of?
LIQUID IRON & NICKEL
True or False: S-waves can travel through a liquid such as earth’s outer core
FALSE
How long would it take for the first S-wave to arrive at a seismic station 4,000 kilometers away from the epicenter of an earthquake?
12 MINUTE, 40 SECONDS
Name the major active fault in the U.S.
San Andreas Fault
Explain the difference between continental and oceanic crust.
OCEANIC CRUST IS HEAVIER/DENSER
OCEANIC CRUST IS MAINLY BASALT/ CONTINENTAL IS MAINLY GRANITE
CONTINENTAL CRUST IS OLDER
What are 2 differences between the outer and inner core?
1. SOLID vs LIQUID
1. TEMPERATURE
Which type of boundaries are associated with rift valleys?
DIVERGENT
A P-wave takes 8 minutes and 20 seconds to travel from the epicenter of an earthquake to a seismic station.
Approximately how long will an S-wave take to travel from the epicenter of the same earthquake to this seismic station?
15 MINUTE, 0 SECONDS
Two features that may occur at divergent plate boundaries
VOLCANOES & RIDGES
What is a lateral fault?
KNOWN AS STRIKE-SLIP, A FRACTURE IN THE ROCKS OF EARTH'S CRUST IN WHICH THE ROCK MASSES SLIP PAST ONE ANOTHER PARALLEL TO THE STRIKE
What is the pressure, temperature AND melting point at 4000 km deep?
MELTING POINT: 5500 CELSIUS
TEMP: 5800 CELSIUS
PRESSURE: 2.2 MILLION ATMOSPHERE
List two main pieces of evidence that support the Theory of Continental Drift/Pangaea
LAND FITS LIKE A PUZZLE/ FOSSILS IN DIFFERENT CONTINENTS/ RESOURCES FOUND IN AREAS THAT SHOULDN'T EXIST/ MOUNTAINS ON OPPPOSITE SIDES ARE IDENTICAL
The epicenter of an earthquake is 6,000 kilometers from an observation point.
What is the difference in travel time for the P-waves and S-waves?
7 MINUTE, 35 SECONDS