An electronic percussion instrument comprising: a struck surface; strike sensors (10, 20, 30, 40) configured to detect a strike on the struck surface, wherein the strike sensors (10, 20, 30, 40) comprise a central sensor disposed at a central portion of the struck surface when the struck surface is viewed in a plan view and a plurality of peripheral sensors (20, 30, 40) disposed on the struck surface; the electronic percussion instrument being characterized in further comprising: a first position calculation device configured to calculate a first strike position from the central sensor based on an initial half wave of a strike waveform of the strike detected by the central sensor in a case when the initial half wave is detected by the central sensor within a first predetermined time after the central sensor detects the strike; a second position calculation device configured to calculate a second strike position based on a difference in strike detection of the strike by the plurality of peripheral sensors (20, 30, 40); and a sound production instruction device configured to instruct production of a striking sound based on the first strike position calculated by the first position calculation device and the second strike position calculated by the second position calculation device, wherein the plurality of peripheral sensors (20, 30, 40) are at least three peripheral sensors (20, 30, 40) disposed along a circumference centered on the central sensor and in a region on the struck surface in which, when the struck surface is struck, the strike is able to be detected by the plurality of peripheral sensors (20, 30, 40) within a second predetermined time after the central sensor detects the strike and in a region on the struck surface in which the initial half wave of the strike waveform of the central sensor is able to be detected by the central sensor within the first predetermined time after the central sensor detects the strike. a struck surface; strike sensors (10, 20, 30, 40) configured to detect a strike on the struck surface, wherein the strike sensors (10, 20, 30, 40) comprise a central sensor disposed at a central portion of the struck surface when the struck surface is viewed in a plan view and a plurality of peripheral sensors (20, 30, 40) disposed on the struck surface; the electronic percussion instrument being characterized in further comprising: a first position calculation device configured to calculate a first strike position from the central sensor based on an initial half wave of a strike waveform of the strike detected by the central sensor in a case when the initial half wave is detected by the central sensor within a first predetermined time after the central sensor detects the strike; a second position calculation device configured to calculate a second strike position based on a difference in strike detection of the strike by the plurality of peripheral sensors (20, 30, 40); and a sound production instruction device configured to instruct production of a striking sound based on the first strike position calculated by the first position calculation device and the second strike position calculated by the second position calculation device, a first position calculation device configured to calculate a first strike position from the central sensor based on an initial half wave of a strike waveform of the strike detected by the central sensor in a case when the initial half wave is detected by the central sensor within a first predetermined time after the central sensor detects the strike; a second position calculation device configured to calculate a second strike position based on a difference in strike detection of the strike by the plurality of peripheral sensors (20, 30, 40); and a sound production instruction device configured to instruct production of a striking sound based on the first strike position calculated by the first position calculation device and the second strike position calculated by the second position calculation device, wherein the plurality of peripheral sensors (20, 30, 40) are at least three peripheral sensors (20, 30, 40) disposed along a circumference centered on the central sensor and in a region on the struck surface in which, when the struck surface is struck, the strike is able to be detected by the plurality of peripheral sensors (20, 30, 40) within a second predetermined time after the central sensor detects the strike and in a region on the struck surface in which the initial half wave of the strike waveform of the central sensor is able to be detected by the central sensor within the first predetermined time after the central sensor detects the strike.