Real-time earthquake reports are calculated automatically from seismic-intensity-meter measurements of peak ground acceleration throughout an affected area, and the JMA reports the intensities for a given quake according to the ground acceleration at measurement points.
Laporan gempa real-time dihitung secara otomatis dari pengukuran seismik-intensitas-meter percepatan tanah puncak di seluruh area yang terkena dampak, dan JMA melaporkan intensitas gempa yang diberikan sesuai dengan akselerasi tanah pada titik pengukuran.