An explosion seen off the Caspian Sea on July Fourth was attributed to a mud volcano eruption. Gavriil Grigorov via Getty Images A mud volcano erupted on an island in the Caspian Sea about 46 miles ...
This article was originally featured on The Conversation. Rice farmers living in Sidoarjo Regency, Indonesia, awoke to a strange sight on May 29, 2006. The ground had ruptured overnight and was ...
Editor’s Note: Editor’s Note — CNN Travel’s series often carry sponsorship originating from the countries and regions we profile. However, CNN retains full editorial control over all of its reports.
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