Abstract Ceboruco volcano is a stratovolcano located in western central Mexico within the state of Nayarit. Ceboruco volcano is one of the active volcanoes of the Trans-Mexican Volcanic Belt and lies within the Tepic-Zacoalco Rift structure. Eruptions at Ceboruco volcano have been reported over the last 1000 years with eruptions every 126 years on average, with the most recent eruption occurring in 1870. Current activity at Ceboruco volcano is primarily fumarolic emissions. Continued population and socio-economic growth around the volcano over the last 20 years, make urgent the need to study Ceboruco volcano. Previous investigations of seismicity classified the recorded earthquakes into four families using waveform and spectral features. In this paper, we present a seismicity study from March 2012 to July 2014 using four portable seismic stations within the context of the regional stress and structures near Ceboruco volcano. Of the 489 volcanic earthquakes recorded during this time period, only 33 could be located using P- and S-wave arrivals registered at least three stations. The P- and S-phase arrival times were obtained using particle motion. The epicentral distribution of these earthquakes is around the volcanic edifice along three structural lineaments with preferred ENE-WSW orientations, roughly perpendicular to Tepic-Zacoalco Rift and, following the youngest deformation pattern. Hypocentral depths locate within first 10 km, indicating the earthquakes are a result of local tectonic stresses, intrusions into the magma chamber, or both.

中文翻译：

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2012 年至 2014 年期间塞波鲁科火山（墨西哥纳亚里特）的地震活动研究

摘要 Ceboruco 火山是位于墨西哥中西部纳亚里特州的一座成层火山。Ceboruco火山是跨墨西哥火山带的活火山之一，位于Tepic-Zacoalco裂谷构造内。在过去的 1000 年里，有报道过 Ceboruco 火山喷发，平均每 126 年喷发一次，最近一次喷发发生在 1870 年。 Ceboruco 火山目前的活动主要是喷气式排放。过去 20 年来，火山周围持续的人口和社会经济增长，迫切需要研究塞波鲁科火山。先前的地震活动调查使用波形和频谱特征将记录的地震分为四个系列。在本文中，我们在 Ceboruco 火山附近的区域应力和结构范围内使用四个便携式地震台站进行了 2012 年 3 月至 2014 年 7 月的地震活动研究。在此期间记录的 489 次火山地震中，只有 33 次可以使用至少注册三个台站的 P 波和 S 波到达来定位。使用粒子运动获得 P 和 S 相到达时间。这些地震的震中分布在火山建筑物周围，沿着三个具有首选 ENE-WSW 方向的构造线，大致垂直于 Tepic-Zacoalco 裂谷，并遵循最年轻的变形模式。震源深度位于前 10 公里内，表明地震是局部构造应力、侵入岩浆房或两者兼而有之的结果。