The Kamchatka volcanic arc (NW Pacific) is one of the most productive arcs in the world, known for its highly explosive activity. At the same time, the Kamchatkan record of late Pleistocene explosive eruptions has remained fragmentary. Here we present the first continuous record of Kamchatkan explosive activity between ∼12 and 30 ka, which includes ∼70 eruptions and extends the earlier reconstructed Holocene sequence for another 20 ka. Our record is based on geochemical correlations of ¹⁴C-dated tephras that represent all Kamchatka volcanic zones and are buried in lacustrine deposits along the 200 km stretch of the Central Kamchatka Depression (CKD). The accompanying geochemical database of volcanic glass compositions includes 3104 new electron microprobe and 221 LA-ICP-MS analyses. The data show that during the period under study, large silicic explosive eruptions peaked at 30–25 ka. Later times were mostly associated with moderate activity from northern CKD volcanoes Shiveluch and Zarechny. Our tephra record provides the first tephrochronological model for dating and correlating Central Kamchatka late Pleistocene deposits and gives us some insight into the timing of glacial advances in the Kliuchevskoi volcanic group and volcanic response to the onset of the Last Glacial Maximum and glacial unloading at its termination. In addition, studied sections of lacustrine deposits tightly linked by tephra markers suggest the existence of a large lake system within the CKD for ∼20 kyr until its final discharge at ∼12 ka BP.

堪察加火山弧（西北太平洋）是世界上生产力最高的弧之一，以极具爆炸性的活动而闻名。同时，堪察加记录的晚更新世爆发性喷发仍然是零碎的。在这里，我们展示了堪察加半岛爆炸活动的第一个连续记录，介于约12至30 ka之间，其中包括约70次喷发，并将先前重建的全新世序列扩展了另外20 ka。我们的记录是基于^14的地球化学相关性代表所有堪察加半岛火山区的C期特弗拉斯，被埋在沿堪察加半岛中部凹陷（CKD）延伸200公里的湖相沉积物中。随附的火山玻璃成分地球化学数据库包括3104个新的电子探针和221个LA-ICP-MS分析。数据显示，在研究期间，大型硅质爆炸爆发在30-25 ka达到峰值。较晚的时间主要与北部CKD火山Shiveluch和Zarechny的中等活动有关。我们的特弗拉记录提供了第一个年代学模型，用于对堪察加中部晚更新世年代进行测年和相关分析，使我们对克留奇夫斯科伊火山群的冰川发展时间，火山对最后冰川最大爆发的反应以及冰川在其终止时的卸载有一些见解。 。