United States – Walla Walla County

This page summarizes earthquakes in Walla Walla County (United States). The most recently recorded event was a magnitude M1.8 earthquake near Port Kelley on 2026-08-03 18:40:04 UTC. All event lists and map markers are limited to the last 30 days.

Earthquakes (last 30 days)
1
Max magnitude (last 30 days)
M1.8
Avg magnitude (last 30 days)
M1.78
Avg depth (last 30 days)
0 km
Seismic activity in 2026

In 2026, Walla Walla County recorded 2 earthquakes within United States.

Located on the North America Plate.

Map (last 30 days)
< 2 2–4 4–5 ≥ 5
Earthquakes in Walla Walla County (last 30 days)
M1.8
Port Kelley
2026-08-03 · 18:40 UTC · 0 km
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