2013 Map of Sulphur Cone

About this map

The Southwest Rift Zone dominates this section of the Island of Hawaiʻi, recording a chronology of volcanic activity through distinct geological markers. The terrain is defined by historic events, most notably the Lava Flow of 1851, the Lava Flow of 1949, and the Lava Flow of 1950. These specific deposits reveal the movement of molten rock across the landscape over a century of eruptions. Higher elevations are punctuated by prominent volcanic features such as Sulphur Cone, Red Cone, and peaks like Puʻuʻuo. The absence of human infrastructure or settlements underscores the dynamic and unpredictable nature of this high-altitude rift environment, where the ʻAlalā Lava Flow further illustrates the complex layering of the island's geothermal history.