4.3-magnitude quake rattles Northern California redwoods, geologists say

An overnight 4.3-magnitude earthquake shook a remote area of Northern California redwood country, the U.S. Geological Survey reports.

The 20-mile deep quake hit about 22 miles northeast of Redway at 12:55 a.m. Thursday, Oct. 20, according to the USGS. Dozens of people from as far away as Myers and Garberville reported feeling the tremor to the agency.

Redway is a community of 1,300 people in Humboldt County about 225 miles northwest of Sacramento. It is near the John B. Dewitt Redwoods State Natural Reserve

Magnitude measures the energy released at the source of the earthquake, the U.S. Geological Survey says. It replaces the old Richter scale.

Quakes between 2.5 and 5.4 magnitude are often felt but rarely cause much damage, according to Michigan Tech. Quakes below 2.5 magnitude are seldom felt by most people.

This story was originally published October 20, 2022 at 6:24 AM with the headline "4.3-magnitude quake rattles Northern California redwoods, geologists say."