Damage in 5.7-magnitude quake off Italy's Adriatic coast

A moderate earthquake shook Italy's northeastern coast early Wednesday, causing some cracks in buildings and prompting at least one health clinic to evacuate. There were no immediate reports of injuries.

Earthquake depth impacts potential tsunami threat

Earthquakes of similar magnitude can cause tsunamis of greatly varying sizes. This commonly observed, but not well-understood phenomenon has hindered reliable warnings of local tsunamis.

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