21. Some nests are built in piles of leaves and at a shallow depth in soil. 22. Her upper decks were still sticking out of the water due to the shallow depths . 23. Because of its shallow depths , the largest cruise ships do not pass through these narrows. 24. Since its rediscovery the wreck has become a popular dive site due to its shallow depth . 25. The coal is found at a shallow depth which made mining in the area relatively easy. 26. Owing to the shallow depth , powerful shaking was reported in many areas around the epicenter. 27. At shallow depths , the soil indicates color or structure changes different from the parent soils. 28. Because of the size of the earthquake and its shallow depth , USGA is expecting substantial damage. 29. Because of the size of the earthquake and its shallow depth , USGS is expecting substantial damage. 30. Because of the size of the earthquake and its shallow depth , USGS is expecting substantial damage,
