This page summarizes earthquakes in Washington County (United States). The most recently recorded event was a magnitude M1.8 earthquake near Beaverton on 2026-06-11 11:44:38 UTC. All event lists and map markers are limited to the last 30 days.
In 2026, Washington County recorded 12 earthquakes within United States. The average magnitude was M1.38. The strongest event reached M1.9.
