Earthquakes shake northern California including strong aftershock

Magnitude 5.5 quake strikes in Sierra Nevada but only minor damage immediately reported

Earthquakes have rattled a large area of northern California this week, including a strong aftershock shake early on Friday. Only minor damage was immediately reported.

A magnitude 5.5 quake centered in the Sierra Nevada’s Lake Almanor resort region struck at 4.19pm on Thursday and a magnitude 5.2 aftershock occurred at 3.18am on Friday, according to the US Geological Survey.