We can be shaken.

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Before anything else, we must know that in Christ we have love and security, we have salvation, and these are unshakable characteristics.
For thus says the Lord of hosts: Yet a little while, and I will shake the heavens and the earth, the sea and the dry land; 7 and I will shake all nations, and the Desire of all nations will come; and I will fill this house with glory, says the Lord of hosts. 8 The silver is Mine, and the gold is Mine, says the Lord of hosts. 9 The glory of this latter house will be greater than the former, says the Lord of hosts; and I will give peace in this place, says the Lord of hosts.
Haggai 2:6-9
God has His ways of doing things; sometimes He even shakes the world when He sets out to do something great. We see similar accounts in the Bible when the earth shook at the moment Jesus Christ died on the cross, and we have also seen it after Pentecost.
51 And behold, the veil of the temple was rent in two from top to bottom, and the earth shook, and the rocks were split.
Matthew 27:51
31 And when they had prayed, the place where they were meeting together shook, and they were all filled with the Holy Spirit and spoke the word of God with boldness.
Acts 4:31
These were impressive events, and at the same time, they were very powerful messages indicating that we should pay attention because what is happening is something extremely important. Today, we may live in an area where there's never been an earthquake, but we do know that the Lord is shaking some foundations. This also happens because people often build their lives on very weak foundations, such as their own wisdom, their own ability, or similar, thus ignoring the sure foundation that is the Lord Jesus Christ Himself.
11 For no one can lay any foundation other than the one already laid, which is Jesus Christ.
1 Corinthians 3:11