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Petermann Glacier releases 29-square-mile iceberg, expected to calve

9/7/2026

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Summary

Story summary

Petermann Glacier released a Manhattan-sized iceberg on August 4.
The iceberg measured 29 sq mi (76 sq km) and up to 150 m thick.
It drifted southwest through Petermann Fjord at about 1.8 mi (3 km) per day.
The ice island struck Joe Island in Nares Strait but remained intact.
Researchers expect the iceberg to fracture and anticipate two calvings of 36.3 sq mi and 32.4 sq mi.

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Story summary

Petermann Glacier released a Manhattan-sized iceberg on August 4.
The iceberg measured 29 sq mi (76 sq km) and up to 150 m thick.
It drifted southwest through Petermann Fjord at about 1.8 mi (3 km) per day.
The ice island struck Joe Island in Nares Strait but remained intact.
Researchers expect the iceberg to fracture and anticipate two calvings of 36.3 sq mi and 32.4 sq mi.