The Summerville Light sightings apparently began in the 1950s and 1960s, within a few kilometers of three magnitude 3.5 to 4.4 earthquakes that took place in 1959 and 1960, she found.

Apparently, the Summerville light sightings began in the 1950s and 1960s within a few miles of two earthquakes at magnitudes of 3.5 and 4.4. They occurred in 1959 and 1960.

Some reports of the Summerville Light also mentioned that cars violently shook. “Well, to a seismologist, that sort of screams ‘shallow earthquake,’” Dr. Hough said.

Officially, this is known as the Android Earthquake Alerts System. As is often the case with Android, you may find it in a ...

By analyzing forty deep earthquakes around the world, researchers discover the key role of a dual mechanism that allows ...

The Summerville Light is a local ghost story that has been around for decades. There is a new theory from a USGS researcher might finally explain the specter.

Location of Concord 3.1 magnitude earthquake, May 30, 2025. USGS/KPIX The data showed people felt the light or weak shaking as far north as Fairfield and as far south as Danville.

The Summerville Light sightings apparently began in the 1950s and 1960s, within a few kilometers of three magnitude 3.5 to 4.4 earthquakes that took place in 1959 and 1960, she found.