On 17/01/2026 21:45 UTC a magnitude 4 earthquake occurred near WNW of Sitka, Canada. Hypocentre depth: 2 km. Coordinates: 57.170°, -136.272°.
Event technical data
| Magnitude | M 4 |
| Depth | 2 km |
| Coordinates | 57.1700°, -136.2720° |
| Time (UTC) | 2026-01-17 21:45 UTC |
| Location | 58 km WNW of Sitka, Alaska |
Seismic context
Technical analysis: Canada’s main seismic zones are coastal British Columbia (Cascadia) and the St. Lawrence / Charlevoix region in the east.
Geotechnical relevance
For geotechnical engineering in Canada, monitoring local seismicity supports site-specific hazard assessment, liquefaction screening of saturated sands, seismic slope-stability checks and foundation design for dynamic loads. Each recorded event refines local ground-motion and attenuation models.
Official source
Earthquakes Canada (NRCan) — official national earthquake monitoring authority. Visit Earthquakes Canada (NRCan) →
Cross-checked with the global USGS catalogue.
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Seismic site studies, liquefaction assessment and foundation design.
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