M0.4 earthquake 54 km NNE of Battle Ground, Washington, United States

A magnitude 0.4 earthquake struck 54 km NNE of Battle Ground, Washington, United States at 12:25 local time (19:25 UTC) on 24 Oct 2026, at a depth of 3 km, according to USGS.

revised from M1.2

Data: USGS · updated 2026-10-26 22:34 UTC · reviewed

Magnitude: 0.4micro
local magnitude (Richter) (ml)
revised from 1.2
Depth: 3.4 km
Status: Reviewed
Origin time: 2026-10-24 19:25:07 UTC; Local: 24 Oct 2026, 12:25:07 (America/Los Angeles)
Epicentre: 46.208° N, 122.192° 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
Place	Distance	Est. shaking
Battle GroundWashington, United States · pop. 19,407	54 km	INot felt
WoodlandWashington, United States · pop. 5,842	54 km	INot felt
LongviewWashington, United States · pop. 36,848	58 km	INot felt
CamasWashington, United States · pop. 21,846	71 km	INot felt
VancouverWashington, United States · pop. 196,442	73 km	INot felt
GreshamOregon, United States · pop. 110,553	81 km	INot felt
PortlandOregon, United States · pop. 652,503	85 km	INot felt
SeattleWashington, United States · pop. 780,995	156 km	INot 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.

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.

Agency	Magnitude	Depth	Epicentre	Time offset	Status
USGS · UWheadlinePacific Northwest Seismic Network via U.S. Geological Survey	0.4 mlwas 1.2	3.4 km	46.21° N, 122.19° W	–	Reviewed · 1 revision

How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 62 g 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 3 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

Compare M0.4 with M1.0

M1.0 releases about 7.7× the energy of M0.4, and its waves are about 3.9× taller on a seismogram. Energy: 477 g of TNT vs 62 g of TNT.

Each square is the energy of one M0.4. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

16 later earthquakes within 30 km; the largest was M1.4 19 days ago. 9 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.4

16 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)	Magnitude	Depth (km)
0.01	0.4	3
1.14	0.8	6
1.16	1.4	7
1.16	0.4	6
67.19	0.6	10
77.72	0.7	0
83.77	0.2	9
111.35	0.8	8
132.29	0.1	0
158.30	0.1	2
162.19	0.3	10
163.56	0.8	3
166.05	0.6	5
206.25	0.4	11
212.24	0.3	3
305.89	0.5	-1

Did you feel it?

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

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id uw714127342. First recorded here 25 Oct 2026, 14:13:48 UTC. Solutions: USGS · UW (usgs:uw714127342). Cite as: SeismoAtlas, “M0.4 earthquake 54 km NNE of Battle Ground, Washington, United States”, https://seismoatlas.com/earthquake/uw714127342-m0-4-earthquake-54-km-nne-of-battle-ground-washington-united-states, data from USGS.

JSON: /api/v1/events/uw714127342. SeismoAtlas is not an official warning service.