Hawai University telescopes detected a small asteroid as it made entry into our atmosphere near Puerto Rico on June 22, 2019

Not a meteor, an asteroid.






This asteroid named MO 2019, was 4 meter in diameter, size of a small truck!

Imagine that: a truck falling from space - on a neighboring road.

http://spaceplace.nasa.gov/asteroid-or-meteor/en/



Every meteor was an asteroid at one time.

99942 Apophis is a 370-meter diameter near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a probability of up to 2.7% that it would hit Earth on April 13, 2029, but
there is no possibility that Apophis will pass through the 2036 keyhole in 2029. In fact, Apophis will come nowhere near the Earth in 2036.

So a very short window in the warning system.
Question is, do they also have something to counteract?

If NASA had a solution i think they would have done a dry run on MO 2019; or maybe they did!

What we do know is the present US missile shield is limited to intercepting missiles by counter missiles or by laser from satellites.

To blast an asteroid the size of "Apophis is a 370-meter diameter near-Earth asteroid" whether some form of machine gunning with missiles or vaporizing it with repeated laser beams is fiction; we do not know.

As Tom said, A will not strike earth in 2036 but it will once again pass close to earth in 2051. There's a nice write in this link.

https://asteroidday.org/resources/asteroid-learning/asteroid-apophis-and-the-keyhole/

The link mentions 'deflecting' the asteroid but not 'how'.

There are multiple ideas on deflecting Earth impactors and each series of ideas have a lot to do with the properties of the impactor.

Sometimes just parking the right amount of mass near the impactor early enough is enough to change its impact. A slow tractor effect tugs the mass off trajectory.

There are other ideas for other types of impactors.

All in all, it boils down to the fact that there are some potential threats to us that we can NOW deal with, and some that we can't. SOme of the threats are so far beyond what we can deal with, that they would literally destroy us all nearly instantly.

Which is why SOME of us want to invest in working towards being able to deal with more potential threats, while others have more or less decided (without really openly admitting it) that they want to spend all our resources having fun NOW, and just leave worldwide disaster to chance.

This particular threat,is why I personally favor a constant funding of space research, on a general approach, to enable us to have more options someday. As opposed to the people who want to insist on immediate for-profit goals, like mining asteroids, or colonizing the Moon.