A Great Coriander Mystery

I've decided to post this to see whether anyone can help me solve this great mystery. It has been baffling me since this morning.

I was shocked to find my coriander plant in a mess this morning, as shown in the photo. I left it on the floor since yesterday, at a place with good sunlight. Johanna had trimmed the plant two nights ago as it was getting too leafy.

I have no idea what have caused the earth to be scattered around the plant. It looks like somebody (who?) had uprooted the plant and then placed it back in the pot, or something in the pot had exploded, causing the earth to be scattered all over the place. Can a coriander plant explode?

Hmm... I have a feeling this is going to be one unsolved mystery in my life. Any Sherlock Holmes out there?