This is the 17556th most frequent Russian word.
трещин
"Crack" or "fissure."
Here, 'трещин' refers to physical cracks or fractures that are visible on a surface, emphasizing the condition of the wall.
На стене я заметил несколько трещин.
I noticed several cracks on the wall.
In this context, 'трещинами' describes the formation of cracks caused by external forces, highlighting the impact of the earthquake.
Во время землетрясения пол пошёл трещинами.
During the earthquake, the floor developed cracks.
Here, 'трещинами' is used in a figurative sense, analogizing the trembling or breaking nature of the voice to the concept of cracks.