Mexico earthquake triggers mysterious bright lights to flash across the country

Lightning - similar to thunder - lights the sky after tremor has hit Mexico City and other places. The earthquake was the strongest earthquake hit the country in 100 years. And it caused a tsunami warning and killed more than 30 people.

When people fled to the street to avoid danger, violent vibrations also caused a strange blue and green flash to light the night sky.

Even though it has been reported for many years ago, nobody fully recognizes why the bright lights occur. Some think that they are related to the energy released from the ground, others think that it is the result of a secondary effect such as a power plant or cable explosion.

The mystery of flash makes even people think they are supernatural. "We are studying perfectly reasonable physical explanation," In the past people used religious terms to explain [the light of an earthquake] and in modern times I thought about UFOs, "Friedman Freud says. It is a coauthor of researchers. Light conveys to National Geographic

Professor Freud says that light is generated by the electrical properties of terrestrial rocks. Energy from tremors releases charge from the rock and shows light blue and green light in the sky after tremor

But other geologist experts say light is not related to the ground. Instead, they insist that the flash is a small explosion from a generator or other electric power system and can be seen in the night sky.

In many cases, I would like to know if the Alaska earthquake could cause a California earthquake, or if the Chile earthquake is related to the earthquake in Mexico in a week. In case of long distance, the answer is no. Earth's rocky crusts are not strong enough to effectively transmit thousands of miles of pressure. There is evidence that an earthquake in a region can cause seismic activity within hundreds of miles, including aftershocks concentrated near the main shock. There is also evidence that some large earthquakes can cause seismic activity at longer distances (thousands of miles), but these earthquakes are small and short-lived.

Thursday night, Mexico was hit by the worst earthquake in decades, Mexico City was more than 400 miles away from the epicenter of the earthquake. Online video clips not only show off the vibration of the capital of Mexico during the earthquake, but also reflect the sky's strange light. It is quickly marked as seismic light even by social networks and news sites. Earthquake light (or EQL) is said to illuminate the phenomenon observed before, during, or after a strong earthquake. Italian priest and naturalist Ignazio Galli published the first scientific explanation of EQL in 1910. In his book "Raccolta e classificazione dei fenomeni luminosi osservati ne terremoti" (collection and classification of luminescence observed in the earthquake), he recognizes four types: short time (only a few seconds) and lasting (minute) Or time) diffuse light, flare, shining clouds, moving light ball

For centuries people have observed the strangeness of large earthquakes. These lights usually last only a few seconds and have been reported many times, but the first photograph of this phenomenon was not taken until the 1960s. Since that time, scientists seriously considered it, and generated many theories about light sources such as piezoelectric, friction heating, electrokinetic electrokinetics. Scientists discovered similar lights in areas where large volcanic eruptions occurred before the earthquake occurred. According to the latest research, light can be caused by elements that wake up the natural charge of the rock and shine them.