Lexical Definition

‎σεισμός‎ seismós (sice-mos') earthquake G:N-M
from ‎σείω‎

earthquake, tempest.

Usage: 8 forms in 27 verses
Form Translated As     In Verse(s)
σεισμῷ earthquake Rev.11.13
σεισμὸσ a storm Matt.8.24
an earthquake Matt.28.2Rev.6.12Rev.11.13Rev.11.19Rev.16.18
earthquake Acts.16.26Rev.16.18
σεισμὸν earthquake Matt.27.54
σεισμόυ quake LXX.Jer.47.3
σεισμόσ a quake LXX.Ezek.37.7
a quaking LXX.Jer.23.19
an earthquake Rev.8.5
quake LXX.Jer.10.22LXX.Ezek.38.19
quaking LXX.Isa.15.5
σεισμοὶ earthquakes Matt.24.7Mark.13.8
σεισμού earthquake LXX.Isa.29.6LXX.Amos.1.1LXX.Zech.14.5
of quaking LXX.Nah.3.2
quake LXX.Ezek.3.12LXX.Ezek.3.13
quaking LXX.Job.41.29
σεισμοί Earthquakes Luke.21.11

Abbott-Smith

σεισμός, -οῦ, ὁ (< σείω), [in LXX chiefly for רַעַשׁ ;]
a shaking, commotion, as a tempest at sea: Mt 8:24; esp. an earthquake: Mt 24:7 27:54 28:2, Mk 13:8, Lk 21:11, Ac 16:26, Re 6:12 8:5 11:13, 19 16:18.†

Abbott-Smith References

Book Refs
Matthew 8:24 · 24:7 · 27:54 · 28:2
Mark 13:8
Luke 21:11
Acts 16:26
Revelation 6:12 · 8:5 · 11:13 · 11:19 · 16:18

Liddell-Scott-Jones

σεισμός-ός, ,

(σείω) shaking, shock, γῆς σ. earthquake, [Refs 5th c.BC+]

__2 generally, shock, agitation, commotion, σ. τοῦ σώματος [Refs 5th c.BC+]; ἔξωθεν.. προσφέρειν τοῖς.. πάθεσι σεισμόςόν a shock, [NT+2nd c.AD+]
__3 blackmail, extortion, [Refs 2nd c.BC+]; συκοφάντεια καὶ σ. [Refs 2nd c.BC+]

LSJ Scripture Refs: Matt.8.24