15Earthquakes Cause Lightning and Rainbows!Matt Weber: October 03, 2014 | 11,490 views
Earthquakes can trigger lightning and rainbows, known as gravity waves that radiate from the ground before an earthquake. People had reported this phenomenon for centuries, but geologists were unbelievers until the first photograph was taken in Nagano, Japan during the 1960s. The rainbows can be as long as 650 feet. It is possible that the earthquake lights are caused by the prisms of quartz rocks beneath the surface when the rock is stressed in the tectonic plate region. It could also be caused by interference in the Earth’s magnetic field that could also be affected by quartz. The lightning and rainbows do not appear before every major earthquake so theories are not all under investigation.
The ground beneath houses and roads can become like liquid as a result of an earthquake! When soil is already very wet and an earthquake strikes the area, the loosely packed dirt does not just shake, it turns into a type of quicksand that can cause structures to crumble and sink. The most devastating effects of soil liquefaction were seen in Niigata, Japan in 1964 when 16,534 homes were damaged or totally destroyed. This effect on the earth was also seen after the Christchurch earthquake in 2011. Christchurch’s roads turned into liquid and many cars were swallowed into the earth.