| Event Category | Disaster |
| Event Group | Natural |
| Event Subgroup | Meteorological - Hydrological |
| Event Type | Geomagnetic Storm |
| Place | Across Canada |
| Event Start Date | October 31, 1903 |
| Event End Date | November 1, 1903 |
| Comments | On October 31st, a geomagnetic storm that lasted for 8 hours created significant disruptions to the telegraph, telephone and cable systems around the world. |
| Fatalities | 0 |
| Injured / Infected | 0 |
| Evacuated | Unknown |
| Estimated Total Cost | Unknown |
| Federal DFAA Payments | Unknown |
| Provincial DFAA Payments | Unknown |
| Provincial Department Payments | Unknown |
| Municipal Costs | Unknown |
| OGD Costs | Unknown |
| Insurance Payments | Unknown |
| NGO Payments | Unknown |
| Utility - People Affected | Unknown |
| Magnitude | 0.0 |