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M5.1 Depth: 10.3 km

M5.1 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-07-16 11:37:20 UTC Local time: —
M5.1 earthquake near Unorganized Borough on Jul 16, 2026 — map of epicenter and shaking intensity | QuakeMap24
M5.1 Earthquake near Unorganized Borough, Alaska (United States) · 2026-07-16 11:37:20 UTC

About this earthquake

A magnitude M5.1 earthquake was recorded near Unorganized Borough, Alaska (United States) on July 16, 2026 at 11:37 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 224 earthquakes, the strongest at M5.1.

Map

Depth profile

Depth profile Depth: 10.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.3 km
Shallow
10.3 km
10.3 km — shallower than the regional average (15.7 km)
Regional average: 15.7 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

Estimated impact

10 Felt reports · max reported intensity 3

Ground shaking

VI
Strong · Intensity (MMI) VI
Strongly felt, light building damage possible.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 20 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Whitehorse352.0 kmE28'201
Anchorage459.2 kmW289'600

GeoNames · CC BY 4.0

Volcanoes nearby

  • Churchill
    Distance: 91 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Wrangell
    Distance: 208 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Alligator Lake
    Distance: 334 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Fort Selkirk
    Distance: 340 km ·Volcanic field ·Elevation: 1'239 m ·Canada
  • Atlin Volcanic Field
    Distance: 461 km ·Pyroclastic cone(s) ·Elevation: 1'880 m ·Canada

Comparison of seismic sources

4 sources currently report magnitudes from M4.9 to M5.1.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
USGSM5.110.3 km0.0 km
EMSCM4.910.3 km0.0 km
GFZM4.910.0 km12.4 km
SERBIA_RSZM5.010.0 km37.0 km

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#31
Earlier events M≥4205
Earlier events M≥545
Compared since2025-07-24

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M7.22025-12-06 20:41:53 UTC106.1 km M7.22025-12-06 20:41:50 UTC117.1 kmSoutheastern Alaska M7.02025-12-06 20:41:47 UTC110.3 km119 km WSW of Haines Junction, YT/119 km OSO de Haines Junction, YT M7.02025-12-06 20:41:49 UTC110.2 km2025 Hubbard Glacier Earthquake M6.92025-12-06 20:41:50 UTC113.6 kmSoutheastern Alaska

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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