強震[kyoushin] severe earthquake
群発地震[gunpatsujishin] swarm earthquakes
軽震[keishin] weak earthquake
阪神大震災[hanshindaishinsai] Great Hanshin Earthquake (Jan 1995)
弱震[jakushin] mild earthquake

震れる[fureru] to swing
震蕩[shintou] shock
身震い[miburui] shivering
震う[furuu] to shake
震え[furue] shivering

駭く[odoroku] to be surprised
震駭[shingai] terror
震駭させる[shingaisaseru] to frighten

駭然[gaizen] astonished
驚駭[kyougai] being very surprised