论文标题
Covid-19中国和意大利的地震噪音捕获的社会反应
COVID-19 societal response captured by seismic noise in China and Italy
论文作者
论文摘要
频率高于1 Hz的地震噪声通常称为文化噪声，通常与人类活动相关。最近，中国和意大利大陆的城市对Covid-19构成了锁定限制，这为我们提供了一个前所未有的机会，可以研究1 Hz以上的地震噪声与人类活动之间的关系。使用来自中国和意大利的电台的地震记录，我们表明，高于1 Hz的地震噪声主要由当地运输系统产生。城市的锁定和施加旅行限制导致中国大陆地震噪声的约4-12 dB能量减少。数据还表明，不同的中国城市经历了不同的文化噪音时期，这与局部对流行病的反应差异有关。相比之下，在该国被封锁后，意大利的地震噪声只有〜1-6 dB的能量降低。噪声数据表明，在意大利，交通流量并没有降低，而是表明不同城市对锁定条件的反应如何。
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.
