Minecraft wiki entry for Death_messages, associated text: <player> blew up
Appears when the player is killed by TNT activated by redstone mechanisms, fire, dispensed out from a dispenser or by an end crystal.
<player> was blown up by <player/mob>
Appears when the player is hurt by a player or mob then killed by TNT activated by redstone mechanisms, fire, dispensed out from a dispenser or by an end crystal.
Also appears when the player is killed by an entity that exploded.
<player> was blown up by <player/mob> using <item>
Appears when the player is killed by an entity holding a renamed item that exploded.
<player> was killed by [Intentional Game Design]
Appears when the player is killed by a bed exploding in the Nether or the End, or by a charged respawn anchor exploding in the Overworld or the End.
Includes a click-event link to MCPE-28723.