Abstract Stress fields in the Earth's crust are important indicators leading to better understanding of geologic processes. One way to acquire stress data is through morphometric analysis of volcanoes. Here we evaluate 141 Quaternary-age monogenetic and polygenetic volcanoes and volcanic fields in Java, Indonesia, using a 30-m SRTM DEM, an 8-m DEMNAS, aerial photos, published geological maps, and Landsat and Google Earth satellite imagery. We analyze parameters that imply the geometry of the shallow magma plumbing system and ascent pathways: crater ellipticity and elongation axis, and the orientation of crater-breaching bisectors. The dominant trend of all of these parameters should indicate the direction of the maximum horizontal compressive stress (σHmax) while the minimum horizontal stress (σHmin) should be perpendicular to it. The goal here is to estimate the principal stress axes at the time of dike emplacement, to recognize any spatial variations in stress orientations, and assess factors controlling the emplacement. The resulting orientation of σHmax in the western part of Java is NE-SW, and the trend gradually rotates to NW-SE moving eastward. Abrupt changes in stress orientations and anomalies are also observed in the vicinity of prominent geologic structures, highlighting the influence of preexisting structures on dike emplacement and eruption characteristics. Results of the morphometric analysis of volcanoes and volcanic fields conducted in this study help to estimate the past and present stress orientations in Java, and provide valuable understanding regarding the relationship between volcanic emplacement and crustal structures, complementing other types of analysis.

中文翻译：

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火山形态作为印度尼西亚爪哇火山弧应力方向的指标

摘要 地壳中的应力场是有助于更好地了解地质过程的重要指标。获取压力数据的一种方法是通过火山的形态测量分析。在这里，我们使用 30 米 SRTM DEM、8 米 DEMNAS、航空照片、已发布的地质图以及 Landsat 和 Google Earth 卫星图像评估了印度尼西亚爪哇的 141 个第四纪时代的单基因和多基因火山和火山场。我们分析了暗示浅层岩浆管道系统和上升路径几何形状的参数：陨石坑椭圆度和伸长轴，以及陨石坑破裂平分线的方向。所有这些参数的主导趋势应指示最大水平压应力（σHmax）的方向，而最小水平应力（σHmin）应与其垂直。这里的目标是估计堤坝就位时的主应力轴，识别应力方向的任何空间变化，并评估控制就位的因素。结果爪哇西部的σHmax 方向为NE-SW，趋势逐渐转向NW-SE 向东移动。在突出的地质构造附近也观察到应力方向和异常的突然变化，突出了预先存在的构造对堤防就位和喷发特征的影响。本研究中进行的火山和火山场形态测量分析的结果有助于估计爪哇过去和现在的应力方向，并为火山侵位与地壳结构之间的关系提供有价值的理解，