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).

meteor impact http://static.panoramio.com/photos/large/11624841.jpg

How to explain this process through fluid dynamics?

Is there an equation to explain this fluid dynamical process?

meteor splashes http://www.lmm.jussieu.fr/%7Ezaleski/fig/splashnew.jpg

(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?