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Canada · British Columbia

M4.8 Earthquake near Area D (Graham Island), British Columbia (Canada)

UTC time: 2026-08-03 09:17:46 UTC Local time: —
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Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.8
Depth
15.0 km
Source
USGS

British Columbia · Area D (Graham Island)

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About this earthquake

On August 3, 2026 at 09:17 UTC, a magnitude M4.8 earthquake occurred near Area D (Graham Island), British Columbia (Canada). The hypocenter lay relatively close to the surface at around 15 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

The data is provided by USGS and cross-checked across seismological networks.

Depth profile

Depth profile Depth: 15 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15 km
Shallow
15 km
15 km — deeper than the regional average (5.7 km)
Regional average: 5.7 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 22 km away

Volcanoes nearby

Canada

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 414 Catalogue entries

Of 413 other entries for this area and period, 40 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

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