tectonics unit summary

Page 1

Features of volcanoes

- composite vs shield volcano (its shape and the material it emits)

- viscosity of magma (thickness affects how fast it flows)

- magma chamber, crater, vents

lol thats it

Page 2

Features of earthquakes

- focus, epicentre, seismic waves

- Richter scale (magnitude)

mou la

Page 3

Causes

1. convection currents: plate movement

- constructive (apart) *volcano & earthquake

- destructive (together) *earthquake

- conservative (past) *volcano

2. plate types

- oceanic plate

- continental plate

- KEYWORDS: friction, pressure, dense, subduct, dense, lines of weakness

Page 4

Impacts

- primary / secondary

- long / short term

- scale

Page 5

Vulnerability

- how susceptible they are to death / injury

- likelihood of being impacted

- high vulnerability:

- LEDCs

- time of day

- lack of 3Ps (Predict Prepare Protect eg. infrastructure, earthquake proofing, warning systems etc)

- weather conditions

- population density

Page 6

Hazard management

3Ps

- lower injury / death/ economic loss

- increase preparedness / recovery rate