When I throw a drop of Yogurt (through spoon) into a dish of Yogurt, it caused something like a meteor hitting the earth and something occurs similar to the place a meteor hitting the earth(Barringer Crater). (stable for a few seconds).

_{(source: panoramio.com)}

How to explain this process through fluid dynamics?

Is there an equation to explain this fluid dynamical process?

_{(source: zaleski at www.lmm.jussieu.fr)}

(Note: sometimes the impact of a meteorite is referred to as splashing, if small bits of ejecta are formed.)

What is The Physics of a Splash?