JAKARTA – Indonesia’s Mount Anak Krakatau in the Sunda Strait erupted on July 7, sending an ash column 100m into the sky as the volcano continues to exhibit elevated activity.

According to the Geological Agency of the Energy and Mineral Resources (ESDM), the eruption occurred at 8.21am.

Officials reported that the volcano released a dense grey ash plume that rose from the crater and drifted north-west.

During the eruption, seismic monitoring recorded a maximum amplitude of 11mm and a duration of about 15 seconds.

The head of the Mount Anak Krakatau Observation Post in South Lampung, Andi Suwardi, said the volcano’s alert status remained unchanged despite ongoing eruptions.

“Eruptions are still occurring, with activity fluctuating over time. However, Mount Anak Krakatau’s status remains at the same level as before,” Andi said on July 7 as quoted by Kompas.com.

Andi said monitoring teams at the observation post are conducting 24-hour surveillance to track any changes in the volcano’s activity. Key indicators, including ash plume height and seismic activity, are being closely monitored as part of ongoing assessments.

He also urged the public to remain alert to potential changes in volcanic activity and avoid carrying out activities near Mount Anak Krakatau until further notice.

“We urge the public, fishermen, tourists and climbers not to approach Mount Anak Krakatau or conduct activities in the surrounding area. Safety must remain the top priority until the Geological Agency issues any changes to its recommendations,” Andi said.

Mount Anak Krakatau has recorded a significant increase in volcanic activity since June 10, following a prolonged period of relative inactivity.

Between June 18 and 19, the number of eruption tremors and low frequency earthquakes surged, averaging more than 50 events per day.

From June 16 to July 2, the fre...