The impactor in this case was not large enough to cause anything more than "local" atmospheric effects. The blast was about 10 megatons, one fifth that of the largest nuclear explosion.
"The Barringer Meteorite Crater (also known as "Meteor Crater") is a gigantic hole in the middle of the arid sandstone of the Arizona desert. A rim of smashed and jumbled boulders, some of them the size of small houses, rises 150 feet above the level of the surrounding plain. The crater itself is nearly a mile wide, and 570 feet deep."
150 meters
There are plenty of famous meteors, to know which one specifically you are speaking about, I would need a name. The most famous is probably the one that many believe killed all the dinosaurs. This meteor is estimated to be about 6 miles wide, and created a crater about 110 miles across. Many believe that the Chicxulub Crater in Yucatan, Mexico is this meteor.
meteor crater will only erode if there is some natural source such as wind or water eroding it. Since most planets besides our own do not have an atmosphere or water this process is not available. On the Earth a crater eroding would be evidenced with erosion type qualities such as furrows from water a filled crater bottom and a rounded off top.
Well, it depends on the size of the meteorite you're talking about. If you want to cause a small crater, then go anywhere from a few meters across to a small house in diameter. If you want to cause some minor effects, get something from the size of a large house to 150ft in diameter (Meteor Crater in Arizona.) If you want to cause some major effects to mass extinction, use a meteor the size of 1 mile to 20 miles in diameter or a comet. (One that killed the dinosaurs.) If you want to cause a cataclysmic explosion which can have a shock wave reach Earth's antipodal point, use something +60mi in diameter. (Shockwave goes all the way around the Earth.) If you want to completely destroy the Earth, use a asteroid the size of Venus or larger.
to explain the events and what happened and how .
A meteorite. Most scientists believe that a meteorite formed the Barringer Crater. There is a difference between a meteor and a a meteorite. A meteorite is a meteor that has hit the earth's surface.
The Barringer Crater resulted from a meteorite impact with the earth about 50,000 years ago.
the barringer crater is located in Arizona
"The Barringer Meteorite Crater (also known as "Meteor Crater") is a gigantic hole in the middle of the arid sandstone of the Arizona desert. A rim of smashed and jumbled boulders, some of them the size of small houses, rises 150 feet above the level of the surrounding plain. The crater itself is nearly a mile wide, and 570 feet deep."
Daniel Barringer believed that a large iron deposit was evidence of a meteorite impact crater in Arizona, but he mistakenly assumed it was located beneath the surface. In reality, the meteorite had vaporized upon impact, leaving no significant remnants underground. This led Barringer to invest in fruitless mining efforts in the wrong location.
In Arizona
You are probably referring to the Barringer Crater. This meteor crater is a meteorite impact crater approximately 37 miles (60 km) east of Flagstaff and 18 miles (29 km) west of Winslow in the northern Arizona desert of the United States.
1.6km
There is no normal diameter of a meteor crater. They all vary in size depending on the size of the meteorite. Many are between 10,000 and 30,000 meters in diameter but some can but much larger.
150 meters
It is 0.737 miles in diameter.