Seismos denotes an earth-shaking event, whether occurring in a prison, at sea, or amid scenes of destruction and terror.

The attested use denotes an earth-shaking event: it can shake a prison's foundations, occur at sea, accompany the opening of a tomb, or bring collapse and fear in visionary scenes. Singular and plural forms alike identify such events rather than marking distinct meanings.

1. An earth-shaking event · dominant

   The nominative forms name events that affect their settings: in Acts 16:26 the APB renders a great event that shakes the prison foundations and opens doors, while in Matthew 8:24 it occurs on the sea amid waves covering the boat. In Matthew 28:2 it accompanies the angel's approach to the stone, and in Revelation 11:13 the APB renders an event after which part of the city collapses and people are killed. Plural nominative forms in Matthew 24:7 identify comparable events in various places.

   Acts 16:26Matthew 8:24Matthew 28:2Matthew 24:7Revelation 11:13Revelation 16:18

In the Anselm Project Bible: The APB consistently presents these events with “earthquake” or “earthquakes,” variously saying that one “occurred,” “took place,” or “became.” Those English formulations describe the verse-level presentation rather than separate meanings.