1. In a large pot, cook the bacon over medium heat until crispy. Remove and set aside, leaving the bacon fat in the pot.
2. Add the onion, celery, and carrot to the pot. Cook until softened, about 5 minutes.
3. Stir in the garlic and cook for another minute.
4. Add the potatoes, diced tomatoes, clam juice, and bring to a boil. Reduce heat and simmer until potatoes are tender, about 15 minutes.
5. Stir in the clams with their juice, thyme, oregano, salt, and pepper. Simmer for another 10 minutes.
6. Serve hot, garnished with fresh parsley and the cooked bacon.