Skip to content
SeismoAtlas

M4.3 earthquake 83 km E of La Grande, Oregon, United States

A magnitude 4.3 earthquake struck 83 km E of La Grande, Oregon, United States at 23:42 local time (07:42 UTC) on 9 Nov 2026, at a depth of 12 km, according to USGS and GFZ.

Reported by 2 agencies · revised from M4.1 · 98 reports to USGS “Did You Feel It?”

Data: USGS, GFZ · updated 2026-11-10 18:06 UTC · reviewed

Magnitude
4.3light
local magnitude (Richter) (ml)
revised from 4.1
Depth
11.7 km
Status
Reviewed
Origin time
2026-11-10 07:42:52 UTC
Local: 9 Nov 2026, 23:42:52 (America/Los Angeles)
Epicentre
45.259° N, 117.038° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
La GrandeOregon, United States · pop. 13,07483 kmIIWeak
Baker CityOregon, United States · pop. 9,75283 kmIIWeak
Lewiston OrchardsIdaho, United States · pop. 31,422125 kmIIWeak
LewistonIdaho, United States · pop. 32,544129 kmINot felt
Walla WallaWashington, United States · pop. 32,237135 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 59 km.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · UW, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · UWheadlinePacific Northwest Seismic Network via U.S. Geological Survey4.3 mlwas 4.311.7 km45.26° N, 117.04° W–Reviewed · 5 revisions
GFZGFZ via GEOFON, GFZ Helmholtz Centre for Geosciences4.4 ML10 km45.33° N, 117.01° W+0.2 sAutomatic

How big was it?

Widely felt near the epicentre: rattling windows and objects. Significant damage is unlikely.

It released roughly the energy of 43 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 12 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M4.3 releases about 32× the energy of M3.3, and its waves are about 10× taller on a seismogram. Energy: 43 t of TNT vs 1.3 t of TNT.

Each square is the energy of one M3.3. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

No later earthquakes have been recorded within 30 km so far. Aftershock rates usually fall off roughly in proportion to 1/time.

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

How strong was the shaking where you were?

Anonymous. No account, no cookies. A short automatic check runs in your browser instead of a third-party captcha.

Reports on SeismoAtlas

No reports yet.

USGS “Did You Feel It?” has 98 reports: add yours at USGS.

Event id ew1794296580. First recorded here 10 Nov 2026, 07:44:13 UTC. Solutions: USGS · UW (usgs:uw714136981); GFZ (geofon:gfz2026wals). Cite as: SeismoAtlas, “M4.3 earthquake 83 km E of La Grande, Oregon, United States”, https://seismoatlas.com/earthquake/ew1794296580-m4-3-earthquake-83-km-e-of-la-grande-oregon-united-states, data from USGS, GFZ.

JSON: /api/v1/events/ew1794296580. SeismoAtlas is not an official warning service.