Claims of some religious group that earthquakes are the work of Satan is a big lie. Satan is a deceitful liar and can not harm man without God permission. Satan can not even turn stones into bread to tempt Jesus of hunger in his forty days and forty nights fasting.
Earth's disaster are God's wrath and fierce anger.
Is 13:13 Therefore I will shake the heavens, and the earth shall remove out of her place, in the wrath of the LORD of hosts, and in the day of his fierce anger.
Others said it was a man made disaster due to coal mining expeditions made all throughout the world thereby changing the earth tectonic plates positioning and its structure. With God, there is no need for any man to remove anything for him to create an eartquake. He can make the earth tremble with a mere stare and touch.
With his voice, God can shook the earth and beneath even the heaven up above.
Ps 104:32 He looketh on the earth, and it trembleth: he toucheth the hills, and they smoke.
He can call the waters in the sea to create typhoon that flood and destroy everything in our possession.
Heb 12:26 Whose voice then shook the earth: but now he hath promised, saying, Yet once more I shake not the earth only, but also heaven.
God gave us our life and nobody can take that away. No one but He.
Amos 9:6 It is he that buildeth his stories in the heaven, and hath founded his troop in the earth; he that calleth for the waters of the sea, and poureth them out upon the face of the earth: The LORD is his name.
Deut 32:39 See now that I, even I, am he, and there is no god with me: I kill, and I make alive; I wound, and I heal: neither is there any that can deliver out of my hand.
But surely, either dead or alive, we are for God. So, If you want eternal life, why die without God and Jesus?
Mt 22:32 I am the God of Abraham, and the God of Isaac, and the God of Jacob? God is not the God of the dead, but of the living.