Can Planetary Alignment trigger an earthquake?

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  1. Dan Karner says:

    Gravitational effects of the Moon and Sun dominate here on Earth (note the tidal effects). The effects of the other planets are very small and wouldn’t trigger earthquakes. Just use your gravitational force equation to calculate the influences the other planets have on Earth. Additionally, changes in the other planets’ orbits are so slow that it seems highly unlikely they’d contribute any meaningful amount to stresses in Earth’s crust.

  2. codiguero says:

    What bothers is a pebble in the shoe!

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