Would the war have happened without USS Maine?

Would the Spanish-American War have happened if USS Maine had not exploded?

The crisis already extended beyond Maine: unrest in Cuba and publication of the de Lôme letter had damaged relations before the ship exploded.

Maine had been sent to Havana to protect American citizens amid an existing crisis. Before her destruction, pro-Cuban nationalists intercepted a private letter in which the Spanish minister criticized President McKinley and passed it to the press. Diplomats were expected to send their governments frank assessments of foreign leaders, but publication turned that normal private reporting into a public breach of protocol. The affair forced the Spanish minister's resignation and worsened relations before the explosion.