- 2005; April 11, from 17.27 to 06.00 recorded 158 volcanic earthquake in 07.30 hrs status raised to alert April 12 at 03:40 pm eruption of ash with an altitude of approximately 1000 m above the crater.
- 2006: Since 9 September 2006 there has been an increase in activity. Continuous volcanic tremor with an amplitude of 25 mm. Thin-thick white smoke. medium-strong pressure, high smoke ranges from 100 to 300 m out of the crater. The increase in activity lasted until January 24, 2007
- 2007; Since March 17, 2007, there has been an increase in activity by showing an increase in the volcanic-to-earthquake of up to 15 events per day and the continuous tremor on 18-3-2007 of pkl. 00:00 to 24:00.
|The shape and structure of Mount Talang, according to Neumann van Padang (1951, p.28), is a twin with the ‘Arbaa Market’ which has been extinguished. The peak does not contain the crater. The site of the eruption and the fumarola eruption is a valley over 300 m and 30 to 90 m wide between altitude 2360 – 2460 meters above sea level.
According to Akkersdijk (1927, p.74), Talang mountain is divided by a circle from andesite into a 10 – 40 m wide crater 50 m deep.
There are two lakes, probably previously a crater, which is Lake Talang, an area of 1950 x 1050 m and a depth of 88 m. Located at an altitude of 1674 meters above sea level, and next to it is a small lake of 400 x 100 with an altitude of 1707 meters above sea level.
Hot springs are at the foot of the mountain, which is in Bt. Kili, Batubarjanjang, Buah Batung and Sapan. Based on geologic data summarized, there is found a hot cloud spread consisting of blocks and volcanic ash which is quite wide in the slopes and feet of the Mountain, as well as a fairly wide spread of lava, indicating that Mount Talang has erupted quite large in the history of its growth.