This is so pretty
Earth’s deepest earthquakes
Normally, Earthquakes are a shallow phenomenon, confined to Earth’s upper ~20 kilometers. There are only a couple places where earthquakes take place any deeper than that; subduction zones.
Based on its physical properties, the outer portion of the Earth can be divided into two layers, the lithosphere and the asthenosphere. The lithosphere is the outermost layer of the planet, including the crust, and it is cold. So cold, in fact, that it is able to break and fracture.
The asthenosphere, deeper in the planet, is warm. Warm enough, in fact, that the rocks are able to move and flow without breaking. Apply a force to a rock this hot and, over geologic time, it will flow like a glacier or like silly putty.
For an earthquake to happen, the rocks have to be cold enough to break. If they can flow, they won’t fracture and there won’t be any earthquakes. The boundary between the lithosphere and the asthenosphere is the deepest depth that an earthquake can happen at, unless cold material is taken down deeper into the mantle.
That’s exactly what happens at subduction zones, where old, cold, oceanic plates are taken down into the mantle. Those rocks have been at the surface for hundreds of millions of years and they take time to warm up. They stay cold up to hundreds of kilometers deep into the Earth, and during this portion of their voyage they continue producing earthquakes. Scientists using seismometers can locate these earthquakes and actually track that they get deeper farther from the subduction zone. This layer of deep earthquakes within sinking plates is known as the Wadati-Benioff zone, after two geophysicists, and is a solid demonstration of how subduction zones work. These earthquakes let us see where the plates are as they sink.
Image credit: Marshak, Essentials of Geology, licensed to me for teaching purposes
Reddit has a page (r/LetsNotMeet) dedicated to stories about stalkers, being creeped on & strange encounters. The stories here are supposedly true, and are people’s unfortunate experiences. Here are the top 10, that make your heart skip a beat. The real fears in life are ofcourse humans and what we are capable of.
Trigger warnings for everything here. Stories may include sexual abuse, child abuse & physical abuse.
- THEY DIDN’T KNOW I UNDERSTOOD SPANISH: The reason I will always hesitate to take public transportation espically during the night
- NO GOOD DEED GOES UNPUNISHED: I … just … just read this
- DR.RAMSEY: He needs to kept in jail for the rest of his life
- MY MOM USED TO CLEAN HOUSES, SHE QUIT AFTER THIS: I would quit too
- STRANGER UNDER THE BED: Her story is many people’s worst nightmares
- ROOMMATE WANTED: FEMALE ONLY: Oh jesus
- THE SMILING MAN: They made this into a short film
- I’M HER UNCLE: The reason to keep a watchful eye on your children at all times
- TERRORIZED FOR 2 HOURS: Trust your gut feeling
- DON’T TELL MOM: Dogs are the best creatures on Earth
Feel free to post your own LetsNotMeet stories on this reddit thread or on tumblr.
You may also like: GLITCH IN THE MATRIX
New World of Who (2x10)
IT TOOK ME TWO TIMES TO UNDERSTAND WHAT WAS GOING ON, HOLY FUCKING SHIT MY SIDES.
Disney movies in order of historical setting
(Excludes most of the package films. Some films, eg The Lion King, are impossible to pin down exactly and some, like Aladdin and Treasure Planet, are anachronistic, so these are estimations. A few have been split into 2 if there is more than one time period in the movie, and sequels have been put together.)