Why was poseidon presumed dangerous for?

Poseidon was presumed dangerous primarily due to his control over the seas and earthquakes, which could bring about destruction and chaos. As the god of the ocean, he could unleash storms, shipwrecks, and tidal waves, instilling fear in sailors and coastal communities. Additionally, his volatile nature and vengeful temperament made him a formidable deity, as he could punish those who offended him or failed to honor him properly. This duality of being both a protector and a punisher contributed to his fearsome reputation in Greek mythology.