Crisis on Infinite Forums Dos!

Pick one character, and explain how/why they clear the following scenerios.

Crisis on Earth
Stop Chernobyl Disaster (Nuclear Disaster)
Neutralize Tsar Bomb (100 megaton of TNT) going off in Chicago.

Neutralize Earthquke in Chile with 9.5 rating on the richter scale.
Neutralize Indian Ocean Tsunami
Neutralize Hurricane Katrina

Stop Vredefort Astroid from hitting Earth.

The Draft
Jean Grey (Marvel Girl)
Iron Man (Extremis/Bleeding Edge)
Dr. Doom
Invincible
The Flash I (Jay Garrick)
Spawn (3rd Age)

Doom.

Science.

As Hank Pym

Stop Chernobyl Disaster (Nuclear Disaster)
Pym created a pill to neutralize radiation poisoning

Neutralize Tsar Bomb (100 megaton of TNT) going off in Chicago.
Drop the Bomb into a "Pym door" or shrink it down till its only a spark

Neutralize Earthquake in Chile with 9.5 rating on the richter scale.
Hard one, mostly evacuation with Pym shrinking falling debris.

Neutralize Indian Ocean Tsunami
Grow a Sea-wall

Neutralize Hurricane Katrina
Reinforce the levee

Stop Vredefort Astroid from hitting Earth.
take a Quinjet into space to bfr the asteroid

Iron Man
Stop Chernobyl Disaster (Nuclear Disaster): If meltdown is imminent, Tony merely repairs the damage needed to the reactors/plants. If meltdown has already occurred and he merely has to stop/prevent loss of life, absorb radiation.

Neutralize Tsar Bomb (100 megaton of TNT) going off in Chicago: Disarming the bomb should be cakewalk. Otherwise, toss it in space.

Neutralize Earthquake in Chile with 9.5 rating on the richter scale: Geo-thermal/tectonic devices.
Neutralize Indian Ocean Tsunami: Pretty sure Stark has weather machine satellites.
Neutralize Hurricane Katrina: See above

Stop Vredefort Astroid from hitting Earth: Asteroid Buster Armor.

You can draft some off the list, just be certain he is Iron Man level or Lower.