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M4.6 Depth: 35.0 km

M4.6 Earthquake near 78 km SSE of Adak, Alaska

UTC time: 2025-03-21 15:12:39 UTC Local time: —

About this earthquake

On March 21, 2025 at 15:12 UTC, a magnitude M4.6 earthquake occurred near 78 km SSE of Adak, Alaska. With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS.

Details

Magnitude
M4.6
Depth
35.0 km
UTC time
2025-03-21 15:12:39 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.24460, -176.13720

Map

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 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

Volcanoes nearby

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    Distance: 104 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Kasatochi
    Distance: 112 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Bobrof
    Distance: 116 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Koniuji
    Distance: 129 km ·Stratovolcano ·Elevation: 273 m ·Last eruption: -1150 ·United States

Stats (last 24h)

Global (24h)
649
Country (24h)
—
—
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