PURPOSE: To provide a light with earthquake sensor capable of preventing a person from being kept in the dark even when service interruption or the destruction of a house occurs due to earthquake by integrating an earthquake sensor in the body of the sensor light and turning on an electric lamp by a dry cell.

CONSTITUTION: A sensor 3 for sensing the vibration of earthquake is integrated into the body 1 of a flashlamp or a lighting equipment and an electric lamp 5 is turned on by a battery 4. When the vibration of earthquake reaches a certain degree, the sensor 3 is driven and the lamp 5 is turned on. When the body 1 is detached from a holder 7, it is carried as a flashlamp. In the case of turning off the lamp 5, a reset button 2 is depressed. Thereby even when a person is kept in the dark at the occurance of service interruption or house destruction due to earthquake, the generation of an injury or a panic can be prevented and light to be a guidepost effective for escape guide can be secured.