Quick Definition
σεισμός, οῦ, ὁ n.m. an earthquake, storm
Strong's Definition
from 4579; a commotion, i.e. (of the air) a gale, (of the ground) an earthquake
KJV Usage: earthquake, tempest
UBS Dictionary of the Greek New Testament
noun, m. | -οῦ | σείω
14.87 · Physical Events and States · Movement of the Earth
earthquake a sudden and severe movement of the earth Since earthquakes are universal in occurrence, there is normally no difficulty involved in finding some way of speaking about them. However, in a number of languages idiomatic expressions are used, for example, ‘the devil rolled over’ or ‘mother earth belched.’
In ACT 16:26 the earthquake is regarded as the cause of the prison foundations shaking, and it may be better to restructure the relationships expressed in ACT 16:26 as ‘the prison shook because of the earthquake.’
MAT 24:7 · MAT 27:54 · MAT 28:2 · MRK 13:8 · LUK 21:11 · ACT 16:26 · REV 6:12 · REV 8:5 · REV 11:13 · REV 11:13 · REV 11:19 · REV 16:18 · REV 16:18
14.22 · Physical Events and States · Events Involving Liquids and Dry Masses
storm on the sea a violent action of the surface of a body of water as the result of high waves caused by a strong wind Though the term σεισμός[b] obviously implies the strong action of the wind, the focus is upon the violent motion caused by the waves. It might, therefore, be more appropriate to translate MAT 8:24 as ‘there were huge waves on the sea’ or ‘... on the lake.’ Such a translation would then be appropriate for the following clause.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
σεισμός, -ov, ὁ, (σείω), a shaking, a commotion: ἐν τῇ θαλάσσῃ, a tempest, Mt. viii. 24; as often in Grk. writ. fr. [Hdt. 4, 28], Soph., Arstph. down, pre-eminently an earthquake: Mt. xxiv. 7; xxvii. 54; xxviii. 2; Mk. xiii. 8; Lk.xxi.11; Acts xvi. 26; Rev. vi. 12; viii.5; xi. 13, 19; xvi. 18; Sept. for wy7.
Mounce Concise Greek Dictionary
σεισμός seismos 14x
pr. a shaking, agitation, concussion; an earthquake, Mt. 24:7; 27:54; a tempest, Mt. 8:24
Abbott-Smith Greek Lexicon
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.†
Moulton & Milligan — Vocabulary of the Greek NT
σεισμός, “earthquake” (Mt 247, a/.): cf. Sy/l 744 (=%1116)5 (ii/A.D.) τῶν μναμείων τῶν πεσόντων ἐν τῶι σεισμώι, and P Leid ΝΥ. # (ii/iii A.D.) (= II. p. 149) ὃ ἐὰν εἰπῶ τέλειον,
Liddell-Scott-Jones — Greek-English Lexicon
σεισμός (seismos) — earthquake. σεισμ-ός, ὁ, (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 σεισμόν a shock, [NT+2nd c.AD+]
3. blackmail, extortion, [Refs 2nd c.BC+]; συκοφάντεια καὶ σ. [Refs 2nd c.BC+]