However, the circumstances and cause of death have varied depending on the continuity and storyline.
Here are some common versions:
* Pre-Crisis on Infinite Earths: Jonathan died of a heart attack while saving a boy from a runaway tractor.
* Post-Crisis on Infinite Earths: Jonathan died of a heart attack after protecting his crops from a tornado.
* New 52: Jonathan was killed by a mysterious force, which later turned out to be Zod's scout ship.
* Rebirth: Jonathan died of a heart attack after saving a group of children from a falling satellite.
It's important to remember that these are just some of the most common versions of Jonathan Kent's death. Different writers and storylines have explored different possibilities.
However, regardless of the specific circumstances, Jonathan's death is a significant event in Superman's life and has a profound impact on his character development.