Lumajang, Jawa Timur, July 2 -- Mount Semeru, located on the border of Lumajang and Malang districts, East Java, erupted and spewed ash reaching 1,000 meters above its peak on Wednesday..

"Mount Semeru erupted at 10:37 WIB with an eruption column height observed at 1,000 meters above the peak or around 4,676 meters above sea level (masl)," said Mount Semeru Observation Post Officer, Mukdas Sofian, in a written report received in Lumajang.

According to him, the ash column was observed to be 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 mm and a duration of 234 seconds.

Based on officer data, the mountain with a height of 3,676 meter...