Tides are extremely harmful
quakes can be triggered by tides, as per researchers from the us-based University of California. The tides are produced by the gravitational pull of the moon and sun on the earth, causing the ocean water to rise and fall periodically. This, in turn, raises and lowers the stress on the strata faults roughly twice a day.
The researchers scrutinised data pertaining to more than 2,000 earthquakes occurring worldwide between 1977 and 2000. In particular, they studied quakes originating in the subduction zones, where one tectonic plate collides under the other, such as near the coasts of Japan. "These earthquakes showed a strong correlation with the intense tide stress," the researchers state. They also found that strong tides invariably triggered earthquakes in areas with faults occurring at shallow depths.
We are a voice to you; you have been a support to us. Together we build journalism that is independent, credible and fearless. You can further help us by making a donation. This will mean a lot for our ability to bring you news, perspectives and analysis from the ground so that we can make change together.
Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.