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M4.9 Depth: 48.3 km

M4.9 Earthquake near 53 km SSE of Adak, Alaska

UTC time: 2025-12-15 18:03:53 UTC Local time: —

About this earthquake

On December 15, 2025 at 18:03 UTC, a magnitude M4.9 earthquake occurred near 53 km SSE of Adak, Alaska. The hypocenter lay relatively close to the surface at around 48 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

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

Details

Magnitude
M4.9
Depth
48.3 km
UTC time
2025-12-15 18:03:53 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.41910, -176.39160
Temperature
4.0°C

Map

Depth profile

Depth profile Depth: 48.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 48.3 km
Shallow
48.3 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

  • Moffett
    Distance: 63 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States
  • Great Sitkin WATCH · ORANGE
    Distance: 75 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States
  • Kanaga
    Distance: 77 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Bobrof
    Distance: 90 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Kasatochi
    Distance: 104 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Takawangha
    Distance: 122 km ·Stratovolcano ·Elevation: 1'449 m ·Last eruption: 1550 ·United States

Stats (last 24h)

Global (24h)
648
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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