3 ms·

I did mean the heat, not gravity. A Solar eclipse on Earth blocks all direct sunlight for about 10 minutes. My question is would that be enough to cause an eart

by dreen 6y ago

I did mean the heat, not gravity. A Solar eclipse on Earth blocks all direct sunlight for about 10 minutes. My question is would that be enough to cause an earthquake, by suddenly cooling an area of the planet. I also realise the night blocks sunlight for way longer, but maybe this is different because the effect is spread out. During eclipse we have the planet all around the area of eclipse heated up and a comparatively small area not being heated in the middle.

macintux 6y ago
I suspect, without having any real clue, that you’d see greater localized extremes in temperature with a pop—up thunderstorm. I’d have a hard time believing earthquakes could result from that (although the science & engineering in this article are enough to make me believe just about anything is possible).
- Sharlin 6y ago
  Do lightning strikes/thunderclaps register on seismometers? Apparently yes: [1][2] [1] https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/91JD00789 https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/91JD... [2] https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL030404 https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007...
  - sitkack 6y ago
    So do rivers and animal migrations. http://www.geologypage.com/2019/11/studying-the-snowmelt-episodes-of-a-pyrenean-river-with-a-seismometer.html http://www.geologypage.com/2019/11/studying-the-snowmelt-epi... https://pubmed.ncbi.nlm.nih.gov/25618038/ https://pubmed.ncbi.nlm.nih.gov/25618038/ https://www.researchgate.net/publication/251437544_Seismic_waves_from_elephant_vocalizations_A_possible_communication_mode https://www.researchgate.net/publication/251437544_Seismic_w... https://abcnews.go.com/Technology/DyeHard/elephants-predict-earthquakes/story?id=8643318 https://abcnews.go.com/Technology/DyeHard/elephants-predict-...
  - ksaj 6y ago
    Apparently particularly energetic soccer cheers are also easily detected by seismometers. Here is one example: https://www.huffingtonpost.ca/entry/fans-cheering-world-cup-goal-may-have-caused-artificial-earthquake-in-mexico-city_n_5b26e7f4e4b0783ae12a5f6b https://www.huffingtonpost.ca/entry/fans-cheering-world-cup-...
sitkack 6y ago
Earth is mostly water and large portions of land are covered vegetation and the atmosphere could serve as a larger thermal buffer. It could be that on mars that the surface is more connected structurally and has a much thinner crust, local cooling could have a much larger affect. If my hypothesis are true, I think it would show that meteor impacts would cause longer spherical ringing. In a quick search I can't tell if there are multiple seismometers on mars, which would make it much easier to infer the structure of the core and the crust. (disclaimer, just a dog on the internet) https://en.wikipedia.org/wiki/Tectonics_of_Mars https://en.wikipedia.org/wiki/Tectonics_of_Mars

by dreen 6y ago

macintux 6y ago

I suspect, without having any real clue, that you’d see greater localized extremes in temperature with a pop—up thunderstorm. I’d have a hard time believing earthquakes could result from that (although the science & engineering in this article are enough to make me believe just about anything is possible).

Sharlin 6y ago
Do lightning strikes/thunderclaps register on seismometers? Apparently yes: [1][2] [1] https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/91JD00789 https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/91JD... [2] https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL030404 https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007...
- sitkack 6y ago
  So do rivers and animal migrations. http://www.geologypage.com/2019/11/studying-the-snowmelt-episodes-of-a-pyrenean-river-with-a-seismometer.html http://www.geologypage.com/2019/11/studying-the-snowmelt-epi... https://pubmed.ncbi.nlm.nih.gov/25618038/ https://pubmed.ncbi.nlm.nih.gov/25618038/ https://www.researchgate.net/publication/251437544_Seismic_waves_from_elephant_vocalizations_A_possible_communication_mode https://www.researchgate.net/publication/251437544_Seismic_w... https://abcnews.go.com/Technology/DyeHard/elephants-predict-earthquakes/story?id=8643318 https://abcnews.go.com/Technology/DyeHard/elephants-predict-...
- ksaj 6y ago
  Apparently particularly energetic soccer cheers are also easily detected by seismometers. Here is one example: https://www.huffingtonpost.ca/entry/fans-cheering-world-cup-goal-may-have-caused-artificial-earthquake-in-mexico-city_n_5b26e7f4e4b0783ae12a5f6b https://www.huffingtonpost.ca/entry/fans-cheering-world-cup-...

sitkack 6y ago

Earth is mostly water and large portions of land are covered vegetation and the atmosphere could serve as a larger thermal buffer. It could be that on mars that the surface is more connected structurally and has a much thinner crust, local cooling could have a much larger affect. If my hypothesis are true, I think it would show that meteor impacts would cause longer spherical ringing. In a quick search I can't tell if there are multiple seismometers on mars, which would make it much easier to infer the structure of the core and the crust. (disclaimer, just a dog on the internet) https://en.wikipedia.org/wiki/Tectonics_of_Mars https://en.wikipedia.org/wiki/Tectonics_of_Mars