Earthquake alarm

The utility model discloses an earthquake alarm, which comprises a power supply, a conductive ball, a saddle, a conductive outer barrel and an alarm sounder. The saddle is horizontally fixed in the conductive outer barrel, the conductive ball is disposed on the saddle, the power supply, the alarm sounder and the conductive outer barrel are sequentially connected in series, two connecting points are formed between the conductive outer barrel and a conducting wire, one of the connecting point I is connected to the wall of the conductive outer barrel, the other connecting point II is insulated with the wall of the conductive outer barrel and extends into the conductive outer barrel from the bottom, and a distance between the second connecting point II and the wall of the conductive outer barrel is smaller than the diameter of the conductive ball. When using the earthquake alarm, the conductive ball is placed on the saddle, the two connecting points formed between the conductive outer barrel and the conducting wi