> Furthermore, shallow moonquakes lasted a remarkably long time. Once they got going, all continued more than 10 minutes. "The moon was ringing like a bell," Ne

> Furthermore, shallow moonquakes lasted a remarkably long time. Once they got going, all continued more than 10 minutes. "The moon was ringing like a bell," Neal says. > The moon, however, is dry, cool and mostly rigid, like a chunk of stone or iron. So moonquakes set it vibrating like a tuning fork. Even if a moonquake isn't intense, "it just keeps going and going," Neal says. And for a lunar habitat, that persistence could be more significant than a moonquake's magnitude. The dryness of the Moon presents an interesting challenge to tunnel boring machines that I don't often see addressed. [1] https://www.nasa.gov/exploration/home/15mar_moonquakes.html https://www.nasa.gov/exploration/home/15mar_moonquakes.html