# How the moon and sun may trigger slow earthquakes on Earth

> **Open Intelligence Dossier** · First detected: 2026-09-30 21:40 UTC · Category: Science

## Executive Summary
Recent research suggests the gravitational pull of the sun and moon may be responsible for triggering slow earthquake events on Earth.

## Intelligence Brief
A series of new scientific reports indicates that the gravity exerted by the sun and the moon may influence the occurrence of slow earthquakes on Earth. These phenomena, known as slow earthquakes, differ from traditional seismic events in their duration and intensity, yet they represent a significant area of geophysical study. The research focuses on how the gravitational interactions between the Earth and these celestial bodies create enough stress to initiate these slow-slip events. Multiple outlets have highlighted the implications of these findings, with ScienceAlert reporting that scientists may finally have an understanding of the mechanism behind how the sun and moon trigger these events.


Gizmodo.com emphasizes the specific risk associated with these movements, noting that slow earthquakes sometimes occur as precursors to larger, more destructive seismic events. The coverage across these four sources underscores a shift in understanding regarding the external triggers of terrestrial seismic activity and the role of orbital gravity in planetary stability. To understand why this matters, it is necessary to recognize that slow earthquakes are not immediately felt by humans but can alter the stress levels of fault lines. The provided coverage suggests that by identifying the gravitational influence of the sun and moon, researchers can better understand the timing and triggers of these events.


Because these slow earthquakes can precede larger ones, as mentioned by Gizmodo.com, the ability to link them to predictable celestial cycles could potentially improve the broader understanding of seismic patterns and fault line behavior over time. Future observations will likely focus on the correlation between specific solar and lunar positions and the onset of slow-slip events. Based on the reporting from Phys.org and ShiaWaves, the scientific community is now looking at the specific ways gravity influences these earthquakes. Observers will be watching to see if this newly identified mechanism can be consistently used to track slow earthquakes and if further data will confirm the frequency with which the sun and moon set off these events before larger earthquakes occur.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| ShiaWaves | New Study Suggests Sun, Moon’s Gravity May Influence Slow Earthquakes | [Source Link](https://news.google.com/rss/articles/CBMiugFBVV95cUxOcVY1NGM5eEptRXhPMnJzZG1GcnUyUDRvZ1hxanNtQ2tRV3JPOHNWbnY0a3VYbEpGWUQyZzJ1ZGVjUUYyRUNmNFpkYmhJbDZaZVF1YTVsS1RQWGVFSWtsei1QajVOZ0ZoeTAtbmpNY3l5YjdBTnVBQXFXQzhOb2xTcUswZ0dNMUY0V21QZ0FtLUZJemlwS2VSU1d6WHl3dkxucFFqYnNMWHNBMkFwUG1xbzRVUlNYYnpoZEE?oc=5) |
| ScienceAlert | The Sun And Moon Can Trigger Earthquakes, And Scientists May Finally Know How | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxPbzZzWDVzbDVpVkNKUU9kN1FWV0NVZzFjS2tfVDl3WlBjU3dPMWN1VDdHcHF5WGt0OVBsZnZ4aGp3VXpBZUZxY0RZOVlSUUJYY3hFMnI3QjMwNnNBZUhCME55bFVNakc4NFNWQlRHWnVOWXlzUnhhY0tSd1JvM1FfT0RpSWE5UU9ocHJBMGVBMlhTUDF3aWY0X1dWZHR1SkhydkZhVUgxcmk?oc=5) |
| gizmodo.com | Slow Earthquakes Sometimes Come Before Big Ones. The Sun and Moon May Be Setting Them Off | [Source Link](https://news.google.com/rss/articles/CBMiuwFBVV95cUxNdWJUOVcyanFmejJpRnpRZkhSWDZ1RUtwS21FQlIyTTZ6b19mR04yNmRZbUhqNlp2R25Dc0VpQ1QtZ3lMQzM5VDJ6QjRZVU1wdkpiaDE0S2JkNHc3UnB6SjVmZklUZHB2ckpsbDNqUjI2dUt0RFN3OGlMamVsRDllQjFLa2hwSWlBcWpIOVFKdHJndGpxREc0cDBFZmR2T2xOZHZtekFJUkt3U1EzdWNuUlpSb1luRDJRNUc0?oc=5) |
| Phys.org | How the moon and sun may trigger slow earthquakes on Earth | [Source Link](https://news.google.com/rss/articles/CBMieEFVX3lxTE5RckFYWDlQNFAtUjQ4TklhWXlWNUZSWlVrNjEzYndHdXR6dWFoRUQwWUVkMlRpbDhBckZEUnBpdHBZbFVhQkFmc1RiYUVyWjBJckMwX0QzWUk3OWI4NHpHdUdNa295V3ZGdHJxM29VNlo1NkpKU1NpZA?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-30/how-the-moon-and-sun-may-trigger-slow-earthquakes-on-earth*