EUGENE, Ore. (AP)- A cluster of 8 earthquakes shook northwestern Nevada overnight, about 40 miles southeast of the Oregon town of Lakeview and east of the California border.

The cluster started just after 6 p.m. PST Wednesday with a 3.8 magnitude quake in northwestern Nevada, just south of the Oregon border, according to USGS records.

The strongest of the quakes - magnitude 4.5 - struck at 1:16 a.m.

3.8 6:05 p.m. Wednesday
3.0 8:23 p.m. Wednesday
4.5 1:09 a.m. Thursday
2.6 1:35 a.m. Thursday
3.4 1:49 a.m. Thursday
3.1 2:18 a.m. Thursday
3.0 2:39 a.m. Thursday
2.5 4:39 a.m. Thursday
The sparsely populated area has seen swarms of small earthquakes since July that scientists say can be traced to the constant stretching of the Earth's crust, The Associated Press reports.