Earthquake Lights

Earthquake lights are a scientific phenomenon that modern scientists cannot seem to find any viable explanation for. Earthquake lights are flashes and glows that are seen accompanying seismic activity. Despite numerous eyewitness reports and photographs, scientists simply do not have enough data to explain these strange occurences.
Earthquake lights are most common and at their brightest during the earthquake itself but they have been spotted before and after an earthquake has occured. There is no set color to the lights, they are said to usually be white or blue but have also been seen in other color variations.
Earthquake lights are believed to have been first reported around 400 B.C. in Greek records. Because of their rarity, earthquake lights were considered a myth until photographs were recorded of the earthquake lights during an earthquake in Japan in 1966. There have been even more reports in recent years as these lights are now more known about. There were many eyewitness and video reports of lights prior to and throughout the 2007 earthquake in Peru. Other reported videos and sightings occurred right before the May, 2008 earthquake in China.
There are many theories about the cause of these lights though none of them have been accepted by the scientific community. The most common scientific explanation given to explain these lights is that the earth releases gases during an earthquake, after these gases have been released, they are somehow electrified by the atmosphere and begin to glow. Others belive that the lights are caused by radiation; radon gas released from mineral that ionize the air. Many also believe that earthquake lights would explain people's accounts of UFO sightings.