- The asthenosphere and convection currents are important because the movement caused by the asthenosphere set in motion by convection currents is what we use to determine the places of different plates and how they change and deform the earth’s lithosphere.
- Diverging plates make mid-ocean ridge// Converging plates make mountain belts on continents //Transforming plates are associated with the San Andreas fault
- It is better to live near a regularly active fault line. It is regularly giving out the pressure caused by the movement of plates rather than an inactive one which has its pressure built up until it gives out a massive amount of pressure all at once which is far more dangerous.
- Since the plates are sliding, it creates fault lines and earthquakes more than volcanoes. There is little uplift on either side, so there isn’t enough magma formation to lead to volcanoes.
Japan and Indonesia are very close to the edges where the tectonic plates (Pacific plate with Eurasian plate) (Indo-Australian plate with Eurasian plate) collide. It is also on The Ring of Fire which is the area around the Pacific Ocean that has 3/4 of the world’s most active and dormant volcanoes.
6. BC is along the Ring of Fire which means that there is bound to have an earthquake sooner or later. The Juan de Fuca plate is being subducted under the North American plate which is creating pressure that hasn’t been released in a long time. This means that the residents of BC could experience a devastating earthquake soon. Vancouver especially is near the juncture.
7. Volcanoes are usually found along converging plate boundaries where one plate is being subducted under the other, and diverging plate boundaries where plates are moving apart from each other. They are rarely found along fault lines. Fault lines are where plates are sliding past one another (transforming).
8. Countries that are at risk of earthquakes and volcanic activity are Japan, Italy, Indonesia, Philippines and countries in the Caribbean Sea. These countries are the most population dense ones also situated on the edges of tectonic plates.