EARTHQUAKE OBSERVATION SYSTEM, EARTHQUAKE OBSERVATION PROGRAM, AND EARTHQUAKE OBSERVATION METHOD

摘要

[Problem] To enable high precision earthquake disaster simulations by analyzing the impact of earthquakes taking altitude position information into account.[Solution] This earthquake observation system is provided with: multiple altitude notification units 4 which are disposed in a height direction inside a multi-story structure 5 and which notify neighboring mobile terminals of the respective height positions thereof; a plurality of smartphones 1 each provided with a sensor 16 for detecting vibration of the device itself, and each provided with a position information acquiring unit 144 which acquires a current location and attitude of the device itself; an observation control unit 145a which detects the attitude of each smartphone 1 and, on the basis of a continuation time of said attitude, causes the sensor 16 to start detecting vibrations; an information collecting unit 36 which acquires the number of smartphones 1 that have started detecting vibrations, and the respective current positions thereof, and collects the results of the detection by the sensor 16 of each mobile terminal; and a determining unit 37 which, on the basis of the detection results collected by the information collecting unit 36, determines that the vibrations are the result of an earthquake if the number of smartphones 1 bodies that detected the vibrations exceeds a prescribed number.