M6.4 Depth: 10.0 km

M6.4 Earthquake near Pacific-Antarctic Ridge

UTC time: 2025-08-03 04:57:31 UTC Local time: —

About this earthquake

On August 3, 2025 at 04:57 UTC, a magnitude M6.4 earthquake occurred near Pacific-Antarctic Ridge. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size are considered strong and can be dangerous in inhabited regions.

The event was recorded by NNSN.

Details

Magnitude

M6.4

Depth

10.0 km

UTC time

2025-08-03 04:57:31 UTC

Local time

—

Country

—

Source

nnsn

Coordinates

-55.24800, -128.57400

Map

Depth profile

Shallow

10 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

Subsequent earthquakes nearby

Events recorded after this earthquake within 250 km. They are not automatically classified as aftershocks.

First 6 hours0

First 24 hours0

First 72 hours0

Strongest subsequent eventM5.2

M5.22025-08-06 17:32:59 UTC14.3 kmPacific-Antarctic Ridge

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1

Earlier events M≥47

Earlier events M≥56

Compared since2025-03-30

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

Strongest earlier events

M6.42025-08-03 04:57:11 UTC12.2 kmPACIFIC-ANTARCTIC RIDGE M6.42025-08-03 04:57:10 UTC0.0 kmPacific-Antarctic Ridge M6.02025-08-03 04:57:12 UTC17.4 kmPacific-Antarctic Ridge M5.92025-08-03 02:26:19 UTC81.8 kmPacific-Antarctic Ridge M5.52025-08-03 04:57:10 UTC84.0 kmPacific-Antarctic Ridge

Stats (last 24h)

Global (24h)

688

Country (24h)

—

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