M3.4 Earthquake near off the coast of Oregon — 29 October 2025
A minor earthquake of magnitude 3.4 was recorded near off the coast of Oregon on , at a focal depth of 97.9 km.
Time (UTC): 2025-10-29 14:00:33
Time (your timezone): —
Magnitude: 3.4 (minor)
Focal depth: 97.9 km (intermediate)
Epicentre: 44.6442, -129.0060
Location: off the coast of Oregon
USGS link to NOAA tsunami information: Available
Review status: Automatic
Source: USGS event page
How strong was this earthquake?
Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage.
A magnitude 3.4 earthquake radiates roughly 1.9 tons of TNT equivalent in seismic energy.
The USGS assigns this earthquake a significance score of 178, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.
Where was the epicentre?
The epicentre was located at 44.6442, -129.0060. The closest other recorded event was a magnitude 3.3 earthquake 5 km south of here on 20 April 2026.
Why the 98 km depth matters
At 98 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size may be noticed locally, especially close to the epicentre. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.
What does the tsunami information flag mean?
The USGS event record links to NOAA tsunami information because this was a large event in an oceanic region. That link flag does not mean a tsunami occurred or that a warning is active. Check tsunami.gov and instructions from your local authority for the current status of your coastline.
How earthquakes generate tsunamis, and what the alert levels mean →
Aftershocks and local seismic history
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
21 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.0 event near Bandon on 16 January 2026. This M3.4 event released about 7,943 times less energy than that event.
How long aftershock sequences last, and how large they get →
Where this event sits in the record
This earthquake is part of the October 2025 worldwide record. Browse the full monthly archive to compare periods.
Nearest recorded earthquakes to this epicentre
- M3.3 earthquake near off the coast of Oregon — (5 km S)
- M3.7 earthquake near off the coast of Oregon — (18 km S)
- M4.0 earthquake near off the coast of Oregon — (26 km W)
- M3.9 earthquake near off the coast of Oregon — (28 km SW)
- M4.1 earthquake near off the coast of Oregon — (32 km SW)
- M5.4 earthquake near off the coast of Oregon — (45 km WSW)
- M4.2 earthquake near off the coast of Oregon — (46 km WSW)
- M4.2 earthquake near off the coast of Oregon — (48 km SSW)
- M4.2 earthquake near off the coast of Oregon — (51 km S)
- M4.8 earthquake near off the coast of Oregon — (65 km W)
Other magnitude 3 earthquakes worldwide
- M3.4 earthquake near Charlotte Amalie, U.S. Virgin Islands —
- M3.3 earthquake near Desert Hot Springs, CA —
- M3.3 earthquake near Suárez, Puerto Rico —
- M3.3 earthquake near Charlotte Amalie, U.S. Virgin Islands —
- M3.6 earthquake near Atka, Alaska —
- M3.2 earthquake near King Cove, Alaska —
- M3.6 earthquake near Toms Place, CA —
- M3.4 earthquake near Girdwood, Alaska —
Questions about this earthquake
How strong is a magnitude 3.4 earthquake?
Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage. A magnitude 3.4 earthquake radiates roughly 1.9 tons of TNT equivalent in seismic energy.
How deep was the earthquake near off the coast of Oregon?
At 98 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.
Was the M3.4 earthquake near off the coast of Oregon felt?
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size may be noticed locally, especially close to the epicentre. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.
What does the USGS tsunami field mean for this event?
The USGS event record links to NOAA tsunami information because this was a large event in an oceanic region. That link flag does not mean a tsunami occurred or that a warning is active. Check tsunami.gov and instructions from your local authority for the current status of your coastline.
Have there been aftershocks?
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
How often do earthquakes happen near off the coast of Oregon?
21 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.0 event near Bandon on 16 January 2026. This M3.4 event released about 7,943 times less energy than that event.