Time Quake

A Time Quake is an unfortunate side effect of the use of Chronosphere technology during the Second World War.

In-game
A time quake is an in-game cataclysm caused by usage of the Chronosphere, similar to the Chrono Vortex. Whenever a Chronosphere is used, there is a 20% chance a time quake will occur. An explosion is heard, and the game shakes.

The MAD Tank attacks by creating a time quake, while MAD tanks do varying damage based on unit type within a radius around the tank. Time quakes can also be spawned in crates, but only if there are many units on the map

Some builds and versions of Red Alert appear to have natural time quakes broken, due to a bug.