A magnitude 6.0 earthquake was recorded offshore of the U.S. state of Oregon late Thursday evening, according to data from the U.S. Geological Survey (USGS). The seismic event occurred in the Pacific Ocean approximately 180 miles west of the coastline at 10:25 p.m. Eastern Time. Because the epicenter was located offshore, the earthquake did not cause immediate damage on land, though it was detected by monitoring systems across the region. A smaller aftershock measuring magnitude 3.1 was recorded several hours later in the early hours of Friday morning, indicating ongoing seismic activity in the area.