Earthquakes are distributed along the fault lines, which means at the edge of tectonic plates. On a map showing tectonic plates, earthquakes will be distributed along the lines on the map. ... Earthquakes occur most commonly where the gigantic tectonic plates that form the Earth's crust meet and rub together.
Volcanoes are not randomly distributed over the Earth's surface. Most are concentrated on the edges of continents, along island chains, or beneath the sea forming long mountain ranges. ... Major tectonic plates of the Earth. Only a few of the Earth's active volcanoes are shown.
Volcanoes and earthquakes are both produced from the divergent and convergent movement of the tectonic plate boundaries. The best association to this is the pacific ring of fire wherein, most of the earthquake epicenters are located on the pacific plate on the ring of volcanoes.
As populations increase, areas near volcanoes are being developed and aviation routes are increasing. As a result, more people and property are at risk from volcanic activity. Volcanic eruptions are one of Earth's most dramatic and violent agents of change.The main importance in determining the epicentre is so that the fault that ruptured causing the earthquake can be identified. ... If the fault is previously unknown (such as the 2010 Canterbury earthquake), then it is important because it means that the hazard models for the area need improvement.
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