what does the anology "they are called harmonic tremors, perhaps because of their constant release of energy like one song played underground" from the paragraph mean?

Answer 1

The analogy "they are called harmonic tremors, perhaps because of their constant release of energy like one song played underground" suggests that harmonic tremors are a continuous and rhythmic release of energy, akin to a song that plays consistently. In this context, "harmonic" refers to the regular and predictable patterns of the tremors, similar to how a musical piece has a consistent melody or rhythm.

This comparison implies that these tremors occur in a sustained manner, rather than as abrupt, one-time events. The imagery of a "song played underground" evokes the idea of an ongoing, underlying process that might not be directly visible but has a steady presence, much like music that can be felt or sensed even if it is not seen. Overall, the analogy helps convey the nature of harmonic tremors, emphasizing their continuous and organized character in the geological context.