Lumajang, Jawa Timur, Nov. 6 -- Mount Semeru in East Java erupted again on Thursday morning, sending an ash column about 1 kilometer above its peak, according to the Volcanology and Geological Hazard Mitigation Center (PVMBG).

"Mount Semeru erupted on Thursday (Nov 6) at 6:07 a.m. local time, with an eruption column reaching around 1,000 meters above the peak or 4,676 meters above sea level," said Mount Semeru Observation Post officer Mukdas Sofian.

He reported that the ash column appeared white to gray with thick intensity, drifting toward the north and northeast. The eruption was recorded on a seismograph with a maximum amplitude of 22 millimeters and a duration of 157 seconds.

Data from officials show that the highest mountain on Ja...