Mount Semeru Erupts Eight Times, Sending Ash Plume to 15,000 Feet

Mount Semeru in East Java erupted eight times on August 16, sending a volcanic ash plume to an altitude of 15,000 feet (4,600 meters), according to a Volcanic Ash Advisory from Volcano Discovery. Earlier reports from ANTARA News indicated that initial eruptions pushed ash to a height of 700 meters.

Volcanic Ash Advisory and Plume Height

The Volcanic Ash Advisory issued at 04:49 UTC on August 16 confirmed that the ash plume reached 15,000 feet. This data indicates a significant increase in the vertical reach of the volcanic material compared to the 700-meter plumes reported during the eight separate eruptive events cited by ANTARA News.

Eruption Activity and Monitoring

The eight eruptive events recorded by ANTARA News mark a period of active instability for the volcano. Monitoring agencies track these pulses to determine the volume of material ejected and the potential for pyroclastic flows or lahars, which are common characteristics of Semeru’s activity profile.

Current data from Volcano Discovery focuses on the atmospheric impact of the ash, which can disrupt aviation and local air quality. The discrepancy between the 700-meter reports and the 15,000-foot advisory suggests either a sudden increase in eruptive intensity or a broader atmospheric dispersion of the ash cloud following the initial blasts.