Global earthquake detection and warning using Android phones

• 成果类型: Article
• 署名作者: Allen, Richard M.; Barski, Alexei; Berman, Micah; Bosch, Robert; Cho, Youngmin; Jiang, Xia Summer; Lee, Yun-Ling; Malkos, Steve; Mousavi, S. Mostafa; Robertson, Patrick; Spooner, Boone; Stogaitis, Marc; Thiruverahan, Nivetha; Wimpey, Greg
• 署名单位: Alphabet Inc.; Google Incorporated; University of California System; University of California Berkeley; Harvard University; Alphabet Inc.; Google Incorporated
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13959
• DOI: 10.1126/science.ads4779
• 发表日期: 2025-07-17
• 页码: 254-259
• 关键词: t-and-uuml; rkiye; performance; SYSTEM

摘要

Earthquake early-warning systems are increasingly being deployed as a strategy to reduce losses in earthquakes, but the regional seismic networks they require do not exist in many earthquake-prone countries. We use the global Android smartphone network to develop an earthquake detection capability, an alert delivery system, and a user feedback framework. Over 3 years of operation, the system detected an average of 312 earthquakes per month with magnitudes from M 1.9 to M 7.8 in Turkiye. Alerts were delivered in 98 countries for earthquakes with M >= 4.5, corresponding to similar to 60 events and 18 million alerts per month. User feedback shows that 85% of people receiving an alert felt shaking, and 36, 28, and 23% received the alert before, during, and after shaking, respectively. We show how smartphone-based earthquake detection algorithms can be implemented at scale and improved through postevent analysis.