MIDDLETOWN, Calif. – A 3.8-magnitude earthquake that hit near The Geysers geothermal steamfield was felt in several communities in Lake County on Thursday night.

The quake, which occurred at 8:29 p.m., was centered 2.8 miles northwest of The Geysers near Middletown and 13 miles southwest of Clearlake, at a depth of just over 2 miles, according to the US Geological Survey.

A room full of community members attending the Middletown Area Town Hall felt the quake when it jolted the Middletown Senior Center.

As of just before 2 a.m. Friday, the US Geological Survey had received 97 shake reports from 15 zip codes around Northern California.

In Lake County, reports were submitted from Clearlake Oaks, Kelseyville and Middletown.

Elsewhere around the region, shake reports came in from several communities in Napa and Sonoma counties; the most reports, 27, came from Calistoga. The furthest report came from San Ramon, 135 miles away.

The last earthquake measuring magnitude 3 or above in Lake County was in Upper Lake on April 27, when a 3.2-magnitude quake shook the Northshore, according to the US Geological Survey.

Email Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it. . Follow her on Twitter, @ERLarson, or Lake County News, @LakeCoNews.