When an earthquake struck San Diego, these elephants formed an 'alert circle' - NPR
- When an earthquake struck San Diego, these elephants formed an 'alert circle' NPR
- Shocked by earthquake, zoo elephants form 'alert circle' to protect their young at San Diego Zoo Los Angeles Times
- SDSU scientists find new fault lines, underwater landslides, tsunami triggers NBC 7 San Diego
- How ShakeAlert Warns California About Earthquakes The New York Times
- Which active fault zones are in San Diego County? fox5sandiego.com