Earthquake alarm

The utility model comprises an earthquake siren equipped with a body. Within the body, an illuminator, a flashing device and a horn are arranged and connected respectively with a control circuit positioned with a vibration detection device and connected with a battery. Two bubble level meters are arranged within two sides of the body. The earthquake siren comprises said components. The body is placed levelly and adjusted by the level meter before using. A vibrating signal is sensed by the vibration detection device when the earth happens and the flashing device driven by the control circuit produces flashes and sends out a warning voice to achieve a warning expectation. When the power is off, the illuminator can be turned on in order that people can make an easy escape.