The so-called skeleton light in photographic cloth light is

The luminous phenomenon caused by earthquake activity is called terrestrial light. Near the earthquake, it appears more often, and it can sometimes be seen before and after the earthquake.

The cause of the earth's light is not clear, and there are several explanations:

① Before the earthquake, geomagnetic and geoelectric fields changed dramatically and interacted with the ionosphere in the atmosphere.

(2) Underground natural gas and other substances gush out along the ground cracks and spontaneously ignite;

(3) Because the rocks were destroyed sharply before the earthquake, the fractured rocks rubbed against each other along the fracture surface, resulting in the sudden release of heat.

Extended data:

Example introduction:

1February 4, 975 Haicheng and Yingkou earthquakes in China.

1On February 4th, 975, an earthquake of magnitude 7.3 occurred in Haicheng and Yingkou, China, starting from Xiuyan in the east, reaching Mianxian in the west, Liaozhong in the north and Xinjin in the south. At that time, 90% people in the earthquake zone saw the earth light, a long white light belt was visible nearby, and red, yellow, blue, white and purple flashes were visible in the distance.

1On May 29th, 976, two strong earthquakes occurred in Longling and Luxi, Yunnan.

1When two strong earthquakes of magnitude 7.5 and 7.6 occurred in Longling and Luxi areas of Yunnan at 20: 23 and 22: 00 on May 29th, 976, the comrades in charge of the earthquake observed an orange light band over the earthquake area, so they made a quick decision, sounded an alarm, evacuated people and avoided heavy casualties.

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