Following are a number of back-translations of Revelation 16:18:

• Uma: “The sound of thunder crashed and thunderbolts and lightning flashed all around, and there was a big earthquake. From the first creation of man in the world until this time, there has not yet been an earthquake as big as that.” (Source: Uma Back Translation)
• Yakan: “Immediately there were lightning and thunderclaps and rolling-thunder and very strong earthquakes. There hasn’t been an earthquake like that since mankind was created. That is really the ultimate in strong earthquakes.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “Then I heard very loud noises, lightening flashed, and thunder rolled, and there was a strong earthquake. Never before had people experienced an earthquake as strong as that.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “Right after-that lightning flashed and thunder roared. There was also a fearful earthquake. There has been nothing that can-equal the strength of this earthquake beginning from the creation of people on this earth, because this one is the strongest.” (Source: Kankanaey Back Translation)
• Tagbanwa: “And then suddenly lightnings flashed and thunder sounded with loud thunder-claps and the earth shook with great force. This really was the most forceful shaking of the earth which has ever been experienced by people in all this time. It really was the strongest.” (Source: Tagbanwa Back Translation)
• Tenango Otomi: “There was lightning then, there was thunder. There was much noise. The earth quaked. And overflowingly it quaked, never had it been like that since the day people have lived on earth.” (Source: Tenango Otomi Back Translation)