Portal:Earth sciences/DYK/30

Dry bed of the Rio Grande

... that the Rio Grande sometimes runs dry (pictured) and has been labelled an endangered river?
... that human sacrifices were performed on Pichu Pichu, an extinct volcano near Arequipa?
... that Typhoon Phyllis and Typhoon Rita were responsible for the majority of Japan tropical cyclone casualties in the 1975 Pacific typhoon season?
...that Taum Sauk Mountain and its neighbors in the St. Francois range are believed to be one of the few spots in the central US that may never have been submerged under ancient seas?
... that the 1692 Jamaica earthquake, which destroyed Port Royal, occurred at 11:43 a.m., according to a stopped pocket watch found in the harbour?
... that Maitland Volcano in northern British Columbia is a prehistoric shield volcano of the Northern Cordilleran Volcanic Province?

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