Image: Taal volcano blanketed by ash

The Philippines' Taal volcano erupted on 12 January 2020—spewing an ash plume approximately 15 km high and forcing large-scale evacuations in the nearby area.

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Explosion

An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. An explosion creates a shock wave. If the shock wave is a supersonic detonation, then the source of the blast is called a "high explosive". Subsonic shock waves are created by low explosives through the slower burning process known as deflagration.

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