Sumatra_earthquake_moon_tides_cause_earthquakes

As can be seen from the above image, the 2004 M=9.3 Sumatra earthquake occurred during a period of maximum tidal stress. In total, the Japanese team found that of the 12 largest earthquakes recorded, nine fell on or near days with full or new moons.

As can be seen from the above image, the 2004 M=9.3 Sumatra earthquake occurred during a period of maximum tidal stress. In total, the Japanese team found that of the 12 largest earthquakes recorded, nine fell on or near days with full or new moons.