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.

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 ...

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.

These potentially life-saving alerts now cover the entire nation - plus, Samsung just announced its own system.

By analyzing forty deep earthquakes around the world, researchers discover the key role of a dual mechanism that allows earthquakes to grow larger and release more stress.

A 3.9 magnitude earthquake shook a portion of Utah early Thursday morning, according to the United States Geological Survey.. The earthquake was reported just after midnight local time about two ...