Lake Toba, in the Indonesian island of Sumatra, is the site of a supervolcanic eruption around 75,000 years ago that was probably the largest anywhere on Earth during the last 25 million years. There is evidence that this catastrophic eruption drove humanity to the edge of extinction. The crater formed by the eruption is now filled with water to form Lake Toba, which is around 100 km (60 miles) by 30 km (18 miles) in extent, and 505 m (1,656 ft) deep at its deepest point.
Time difference between Indonesia and United Kingdom: Information about time zones and time difference between countries Indonesia and United Kingdom. The time shown here apply Daylight Saving Time when required.