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 E-Mail IMAGE: Vivien He with her earthquake early warning device in her makeshift soldering room converted from a bathroom. view more  Credit: Vivien He A Southern California high school junior has built a low-cost seismometer device that delivers earthquake early warnings for homes and businesses. Costing less than $100 for her to make today, the seismometer could someday be a regular household safety device akin to a smart smoke detector, says its inventor Vivien He. About the size of a Rubik s cube and encased in clear acrylic, the seismometer has a sleek, consumer-ready look. The device s geophone detects incoming ground motion, while onboard hardware and software translate the geophone s electrical signals into a digital waveform. The device has detected all earthquakes over magnitude 3.0 around Los Angeles since September 2020.

United statesPalos verdes peninsula high schoolLos angeles countyLos angelesRichardm allenMelissa kloseSeismological society of americaAssociation of women geoscientists awardInternational scienceWorth foundation for women girlsBerkeley seismology labSouthern californiaSeismological societyMeeting sheTravel grantRolling hills