Earthquake are natural phenomena albeit with huge destructive power. In the last 4,000 years, they have claimed around 13 million lives. So why do they occur? And can they be predicted? Read on to know more such fascinating facts about Earthquakes.
#1. What causes them?
By R.B. Colton [Public domain], via Wikimedia Commons
Majority of earthquakes are caused by collision of the earth’s plate. The earth’s surface consists of 20 moving plats and any pressure from these shifting plates comes out in the form of seismic waves that travel through the earth. Other natural events such as meteor impacts and volcanic eruptions can also cause earthquakes.
#2. The sun and the moon cause tremors
It is common knowledge that these bodies create tides in the Earth’s crust. Now researchers suggest that they are also responsible for causing tremors deep underground.
Every year roughly 8000 people are impacted due to earthquakes , however, it is not the shaking of ground responsible for destruction but rather the man made objects that collapse.
#4. Before the big tremor
Ponds and canals may start to release strange smells before an earthquake. This is because of releasing of underground gases. Groundwater may also experience an increase in temperature.