Plate Boundaries
What type of boundary is the Mid-Atlantic Ridge?
Divergent
Where do earthquakes happen?
At plate boundaries; faults
What is the biggest tectonic plate?
Pacific Plate
Which wave arrives first: P or S waves
P waves
What is the pressure between the mantle and outer core?
1.5 million atmospheres
This type of boundary is located between the Nazca Plate and the South American Plate.
Convergent
What type of boundary has the most dangerous earthquakes?
Convergent
What is the smallest tectonic plate?
Sandwich Plate
Which type of wave does not travel through liquid?
S waves
What is the temperature at the boundary between the outer and inner core?
6100 Celsius
Transform
Where are the two types of places where volcanoes occur?
Hotspots, plate boundaries
On which tectonic plate is the Canary Islands hotspot?
African
4 minutes
Which layer of the Earth is liquid?
The outer core
What are the coordinates for the Easter Island hotspot?
25 degrees S
130 degrees W
The Tonga eruption happened near the Tonga Trench. What process is occurring in the Tonga Trench that causes volcanism?
Subduction
Which two tectonic plates create the Mariana Trench?
Philippine and Pacific
A seismometer 2000 away from an earthquake registered a P wave at 10:04. What time did the earthquake happen?
10:00
In which layer of the Earth are the convection currents located?
Asthenosphere
Which tectonic plates does the equator cross?
African, Indian-Australian, Nazca, South American
What is the word for giant wave caused by an earthquake? (Correct spelling)
Tsunami
Which is on the subducting plate: Indian-Australian Plate or Eurasian plate?
Indian-Australian
A seismometer that is 5000 km from an earthquake registered a P wave at 10:08:20. What time did the S wave arrive?
10:15:00
How do we know that the outer core is liquid?
S waves don't travel through liquid