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When the lithosphere is subject to a horizontal extensional force it will stretch, becoming thinner. Eventually, it will rupture, leading to the formation of a rift valley.This process is accompanied by surface manifestations along the rift valley in the form of volcanism and seismic activity. Rifts are the initial stage of a continental break-up and, if successful, can lead to the formation of a new ocean basin.An example of a place on Earth where this has happened is the South Atlantic ocean, which resulted from the break up of South America and Africa around 138m years ago -- ever noticed how their coastlines match like pieces of the same puzzle?Continental rifting requires the existence of extensional forces great enough to break the lithosphere. The East African Rift is described as an active type of rift, in which the source of these stresses lies in the circulation of the underlying mantle. Beneath this rift, the rise of a large mantle plume is doming the lithosphere upwards, causing it to weaken as a result of the increase in temperature, undergo stretching and breaking by faulting.Evidence for the existence of this hotter-than-normal mantle plume has been found in geophysical data and is often referred to as the "African Superswell."This superplume is not only a widely accepted source of the pull-apart forces that are resulting in the formation of the rift valley but has also been used to explain the anomalously high topography of the Southern and Eastern African Plateaus. 1506

Wisconsin Gov. Tony Evers released a statement in support of Biden and the DNC's decision."The upcoming Democratic convention is different than we’d imagined. A lot has changed since we set out on this journey more than a year ago now, but the one thing that hasn’t is Democrats’ commitment to putting health and safety first," said Evers. "It has never been more important for elected officials to lead by example—that’s the kind of leader Joe is, and that’s the kind of president we need. I know he will continue to have a presence in Wisconsin, virtually or otherwise, and I look forward to doing everything we can to win Wisconsin."This story was originally published by Mayra Monroy at WTMJ. 696

With rainfall expected to increase throughout the day, Santa Barbara County officials issued a storm update and “Aware and Prepare” alert to its residents at about 5:20 a.m. 173

While the latch may break off while being used (for example, when the door is opened), the potential risk for the door opening while driving cannot be excluded. That includes the possibility of the door opening while reversing or turning a corner. If there is an unbelted occupant and the door opens, the occupant may be injured. 329

Within minutes they would've been consumed, he said. "So they did their best. They did re-enter the vessel from the back of the boat after they swam around it. They could not get to firefighting equipment because everything was engulfed." 238