Abstract The Peruvian deep focus seismic doublet of November 24, 2015 is the largest event recorded on the Peru-Brazil border in the last 50 years, with hypocenter depth at 655 km (Mw 7.4) for the first event and 675 km (Mw 7.5) for the second event, both events were separated by a distance of 50 km and by a time of 5 min. There was no damage on the surface, but the earthquake was felt in part of Peru (IV MM in Esperanza - Ucayali) and Brazil. The parameters that characterize the seismic source have been obtained from the inversion of teleseismic waveforms. For example, the duration of the rupture process was around 25 s for both events and the rupture velocity was between 2.5 and 2.8 km/s. The source time function is similar for both events: it starts with a small energy release before 10 s and then the greatest energy release between 10 s and 20 s. The focal mechanism is of normal fault type, corresponding to tensional tectonic regime of deep slab in the region.

中文翻译：

---

2015年11月24日秘鲁深焦点地震双峰震源特征

摘要 2015 年 11 月 24 日的秘鲁深焦点地震双峰是过去 50 年来在秘鲁-巴西边境记录的最大事件，第一次事件的震源深度为 655 公里（Mw 7.4），震源深度为 675 公里（Mw 7.5）对于第二个事件，两个事件的距离为 50 公里，时间为 5 分钟。地表没有损坏，但秘鲁（埃斯佩兰萨-乌卡亚利的IV MM）和巴西的部分地区有震感。表征震源的参数是从远震波形反演中获得的。例如，两个事件的破裂过程持续时间约为 25 秒，破裂速度在 2.5 至 2.8 公里/秒之间。两个事件的源时间函数类似：它从 10 s 之前的小能量释放开始，然后在 10 s 和 20 s 之间释放最大的能量。震源机制为正断层型，对应于该地区深部板块的拉张构造体制。