Unlock the following disasters with these Achievements.

Disaster	How to unlock
Big Lizard disaster	Burn 100 tons of garbage in an Incinerator at the Garbage Dump to gain access to the Big Lizard disaster.
Eatthquake disaster	Mine 100 tons of coal or raw ore in your city to gain access to the Earthquake disaster.
Meteor strike disaster	Have 200 tourists arrive on flights at the Municipal Airport in a day to gain access to the Meteor Strike disaster.
Tornado disaster	Have 24 Wind Turbines at Wind Power Plants in your city to gain access to the Tornado disaster.
UFO Encounter disaster	Ship any resource to a Space Center Great Work to gain access to the UFO Encounter disaster.
Zombie attack disaster	Add a Diagnostic Lab to a Hospital and have 15 Sims die in a day to gain access to the Zombie Attack disaster.