In this article. When you have diarrhea, your bowel movements (stools) are loose and watery. Itâs very common and although it feels bad, it's usually not serious. It typically lasts two to three days, and if you need to treat it, there are over-the-counter medicines, which means they don't need a prescription.all your doctor immediately if you have: 1  Blood in your diarrhea or black, tarry stools. 2  A fever that is high (above 101 F) or that lasts more than 24 hours. 3  Diarrhea lasting longer than 2 days. 4  Nausea or vomiting that prevents you from drinking liquids to replace lost fluids. 5  Severe pain in your belly or rectum.
There are probably millions of volcanoes that have been active during the whole lifespan of the earth. During the past 10,000 years, there are about 1500 volcanoes on land that are known to have have been active, while the even larger number of submarine volcanoes is unknown.
If you've ever asked yourself, Are there any supervolcanoes that threaten life in modern times? the answer would be six. There are SIX known, active super volcanoes in the world today. Six. And if you want more volcano lists check out the worst & largest volcanic eruptions on earth and death by volcano lists.