**3. Eruptions at Kone volcano**

Volcanological investigation reveals that three silicic eruptive episodes have occurred at Kone volcano [3, 4, 13, 14], followed by a basaltic phase (**Figure 2**). The first eruptive phase produced lavas, forming the main topographic expression of the volcano. The second phase of activity formed ignimbrite outflow sheets. The third silicic eruptive phase built widespread pumice deposits, varying in thickness from 50 cm to over 20 m. A separate, recent basalt eruption, erupted during the first half of the 19th century, formed cinder cones and associated lava flows inside and outside the caldera [15].
