TAHOE/TRUCKEE - A 4.0 magnitude earthquake that struck overnight about a half hour south of Lake Tahoe is the largest in a series of small temblors that have recently occurred throughout the region, according to the U.S. Geological Survey.
The 4.0 quake shook at a depth of 8.1 miles at 12:21 a.m. Thursday, according to USGS, roughly 13 miles from Markleeville and 32 miles south of South Lake Tahoe. There were no injuries reported.
A 2.4 magnitude earthquake also hit at 5:50 a.m. Thursday, roughly 13 miles west of Truckee and northwest of Sunnyside, according to USGS.
Thursday's temblors were part of a series hitting the region within the past week; as of Thursday afternoon, there had been a total of 11 earthquakes below 2.0 within 13 miles of Truckee and Lake Tahoe's West Shore since Jan . 18, according to USGS.
Several other small quakes have hit south of Lake Tahoe and northeast of the lake within the same timeframe.
According to previous reports, Thursday's quakes were the first in the region of significance since a 4.2 earthquake shook about 6 miles east of Truckee and 3 miles north of Incline Village the evening of June 25, 2012. No one was hurt in that quake.
To follow these quakes and monitor others, visit earthquake.usgs.gov and click on the "Real-time Earthquake Map."