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M5.9 Earthquake near 231 km W of Bandon, Oregon

UTC time: 2025-09-26 06:45:29 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

Magnitude
M5.9
Depth
10.0 km
Source
USGS

231 km W of Bandon, Oregon

Map

M5.9 Earthquake near 231 km W of Bandon, Oregon · 2025-09-26 — Map showing the location of the epicenter
M5.9 Earthquake near 231 km W of Bandon, Oregon · 2025-09-26 — Map showing the location of the epicenter

About this earthquake

On September 26, 2025 at 06:45 UTC, a magnitude M5.9 earthquake occurred near 231 km W of Bandon, Oregon. 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 can cause damage near the epicenter.

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

Details

ID
581a8dd6047180c41ccbce14fe975e5fd275b2ef
Magnitude
M5.9
Depth
10.0 km
UTC time
2025-09-26 06:45:29 UTC
Local time
—
Country
—
Source
usgs
Coordinates
43.47770, -127.21850
Temperature
17.5°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
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

Official USGS aftershock forecast

Probability of at least one aftershock at or above the specified magnitude during the entire stated time window. This does not predict an individual earthquake.

Issued: Sep 4, 2026, 6:45 AM UTC · Last checked: Sep 7, 2026, 8:37 AM UTC

Sep 4, 2026, 7:00 AM UTC – Sep 5, 2026, 7:00 AM UTC · Expired
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.00.15 %0–0
M ≥ 4.00.01 %0–0
M ≥ 5.0< 0.01 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 4, 2026, 7:00 AM UTC – Sep 11, 2026, 7:00 AM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.01.02 %0–0
M ≥ 4.00.10 %0–0
M ≥ 5.00.01 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 4, 2026, 7:00 AM UTC – Oct 4, 2026, 7:00 AM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.04.13 %0–1
M ≥ 4.00.42 %0–0
M ≥ 5.00.04 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 4, 2026, 7:00 AM UTC – Sep 4, 2027, 7:00 AM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.028.37 %0–2
M ≥ 4.03.50 %0–1
M ≥ 5.00.36 %0–0
M ≥ 6.00.04 %0–0
M ≥ 7.0< 0.01 %0–0

The range is the 95% forecast interval for the number of earthquakes. Magnitude thresholds and time windows overlap: do not add the values. Windows already in progress still refer to the entire stated period.

Source: USGS — Operational Aftershock Forecast

Nearby population centers

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

PlaceDistanceDirectionPopulation
Coos Bay242.6 kmE16'182
Eugene337.8 kmE176'654
Portland426.0 kmNE652'503

GeoNames · CC BY 4.0

Volcanoes nearby

  • North Gorda Ridge Segment
    Distance: 97 km ·Fissure vent(s) ·Elevation: -3'000 m ·Last eruption: 1996 ·United States
  • Jackson Segment
    Distance: 148 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States
  • East Blanco Depression
    Distance: 231 km ·Fissure vent ·Elevation: -3'000 m ·Undersea Features
  • Escanaba Segment
    Distance: 279 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Cleft Segment
    Distance: 288 km ·Fissure vent(s) ·Elevation: -2'140 m ·Last eruption: 1986 ·Undersea Features
  • Axial Seamount
    Distance: 352 km ·Fissure vent(s) ·Elevation: -1'410 m ·Last eruption: 2015 ·Undersea Features

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours8
First 24 hours8
First 72 hours13
Strongest subsequent eventM5.9
M5.92025-09-26 06:45:30 UTC35.4 kmOff Coast of Oregon M5.92025-09-26 06:45:30 UTC14.4 kmOFF COAST OF OREGON M5.42025-09-26 06:45:33 UTC31.1 kmEvent of magnitude 5.4, near of Salem (Monde) M5.92025-09-26 06:45:33 UTC31.1 kmOff coast of Oregon, United States [Sea: United States] M5.92025-09-26 06:45:34 UTC24.9 km222 km WNW of Bandon, Oregon M5.82025-09-26 06:45:35 UTC0.1 km231 km W of Bandon, Oregon M3.02025-09-26 07:22:32 UTC7.5 km238 km W of Bandon, Oregon M3.02025-09-26 10:05:02 UTC20.2 kmOFF COAST OF OREGON M3.12025-09-27 06:49:20 UTC30.4 kmOFF COAST OF OREGON M3.22025-09-27 17:11:58 UTC19.8 km214 km WNW of Bandon, Oregon M5.22025-09-27 22:12:47 UTC34.6 km265 km W of Bandon, Oregon M5.12025-09-27 22:12:50 UTC6.4 km225 km W of Bandon, Oregon

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#1
Earlier events M≥415
Earlier events M≥57
Compared since2025-01-25

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

Strongest earlier events

M5.82025-09-09 04:08:06 UTC134.6 kmOff coast of Oregon, United States [Sea: United States] M5.82025-09-09 04:08:03 UTC131.7 kmOFF COAST OF OREGON M5.82025-09-09 04:08:01 UTC138.5 km165 km WSW of Port Orford, Oregon M5.72025-09-09 04:08:04 UTC135.3 kmOff Coast of Oregon M5.62025-09-09 04:08:02 UTC135.3 km165 km WSW of Port Orford, Oregon

Stats (last 24h)

Global (24h)
503
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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