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Annemarie Baltay

Annemarie Baltay

Research geophysicist, U.S. Geological Survey (USGS)

Appears in 1 story

Notable Quotes

"I know it’s really unsettling for folks who live in the area." — Annemarie Baltay, USGS

"We really can’t tell you when it’s going to be over." — Annemarie Baltay, USGS

Stories

San Ramon’s December quake swarm won’t stop: a 3.9 rattles the Tri-Valley again

Built World

Active public-facing scientist explaining the Tri-Valley swarm

San Ramon's earthquake swarm won't quit—even for Christmas. A magnitude 3.1 rattled the Tri-Valley on Christmas Eve morning, the latest in a relentless cluster. Since early November, the swarm has delivered more than 300 earthquakes. The biggest jolts came in a chaotic 24-hour stretch: a 4.0 Friday evening, then a 3.9 Saturday night, each followed by smaller aftershocks.

Updated Yesterday