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Earthquakes triggered by Sun and Moon

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#1 Rogerdodger



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Posted 18 July 2016 - 09:59 PM

Some earthquakes on San Andreas Fault triggered by gravitational tug of sun and moon...

"This phenomenon has fascinated scientists for years. Like sea levels, the surface of the Earth also goes up and down with the tides, flexing the crust and stressing the faults inside. Further study found that during certain phases of the tidal cycle, small tremors deep underground – known as low-frequency earthquakes – were more likely to occur."


On the morning of December 26, 2004 a magnitude 9.3 earthquake caused the Tsunami which struck Sumatra, killing 300,000.

It was during a full moon.


Edited by Rogerdodger, 18 July 2016 - 10:08 PM.

#2 Rogerdodger



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Posted 23 December 2018 - 07:09 PM

14 years have passed since the devastating Sumatra tsunami killed 226,000, which coincided with high tide.

This week over 200 were killed when a volcanic eruption triggered an underwater landslide, also coinciding with high tide.

Imagine the stresses caused by the constant "kneeding" of the Earth's mass as it orbits the huge sun and the nearby moon.

It creates the deadly "ring of fire" as ever-shifting tectonic plates bump and grind.

Much of Hawaii, after emerging many moons ago from the ocean floor, has fallen back into the ocean as it did on Jan 1st 2017, taking 5 people with it.


Edited by Rogerdodger, 23 December 2018 - 07:17 PM.