COVID-19中国和意大利地震噪声引起的社会反应
COVID-19 societal response captured by seismic noise in China and Italy
摘要：
频率高于1 Hz的地震噪声通常被称为文化噪声，通常与人类活动有很好的相关性。最近，中国内地及意大利的城市为应对COVID-19而实施封锁限制，这为我们提供了前所未有的机会来研究1 Hz以上的地震噪音与人类活动的关系。利用中国和意大利地震台站的地震记录，我们发现，1 Hz以上的地震噪声主要是由当地的交通系统产生的。城市封锁及实施出行限制导致中国大陆地震噪音能量减少约4-12分贝。数据还显示，中国不同城市经历了文化噪音减弱的不同时期，这与当地对疫情的反应不同有关。相比之下，在意大利实施封锁后，地震噪声的能量仅降低了约1-6 dB。噪音数据表明，意大利的交通流量并没有减少多少，但显示了不同城市对封锁条件的不同反应。
英文摘要：
Seismic noise with frequencies above 1 Hz is often called cultural noise and is generally correlated quite well with human activities. Recently, cities in mainland China and Italy imposed lockdown restrictions in response to COVID-19, which gave us an unprecedented opportunity to study the relationship between seismic noise above 1 Hz and human activities. Using seismic records from stations in China and Italy, we show that seismic noise above 1 Hz was primarily generated by the local transportation systems. The lockdown of the cities and the imposition of travel restrictions led to a ~4-12 dB energy decrease in seismic noise in mainland China. Data also show that different Chinese cities experienced distinct periods of diminished cultural noise, related to differences in local response to the epidemic. In contrast, there was only ~1-6 dB energy decrease of seismic noise in Italy, after the country was put under a lockdown. The noise data indicate that traffic flow did not decrease as much in Italy, but show how different cities reacted distinctly to the lockdown conditions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
