BharatNotes Seismic
adjectiveUsage in a UPSC answer
The simultaneous repeal of three contentious farm laws marked a seismic recalibration of the government's relationship with India's agrarian electorate, reshaping the contours of Centre-State political bargaining for the rest of the term.
Synonyms
Antonyms
Word Family
seismology (n), seismologist (n), seismograph (n), seismometer (n), seismicity (n)
Root
Ancient Greek seismós (σεισμός) = shaking, earthquake; from seíein = to shake; -ic = adjectival suffix
Etymology
From Ancient Greek seismós (σεισμός, "shaking, earthquake"), from seíein ("to shake") + the suffix -ic; first used in English in the 1850s.
Memory Hook
A SEISMOgraph records earthquakes — so anything SEISMIC literally or figuratively makes the ground shake. Picture a "seismic" headline so big it rattles the room.
How This Word Works in UPSC Writing
Relating to earthquakes or the vibration of the Earth's crust. The exam application is the zoning map: IS 1893 (Part 1):2016 divides India into four seismic zones numbered II to V, with roughly 11 per cent of the country's area in Zone V, 18 per cent in Zone IV and 30 per cent in Zone III. Two traps follow. First, a five-zone answer is dated, since the old Zone I was merged into Zone II in the 2002 edition. Second, the map expresses expected intensity of shaking, not the frequency of earthquakes, and since earthquakes cannot be predicted, the operative response is enforcement of building codes rather than forecasting.
Don’t Confuse It With
Seismic is the adjective for anything earthquake-related. Seismicity is the frequency and distribution of earthquakes in an area. Seismology is the discipline and a seismograph the recording instrument. The pairing most often confused is magnitude, the energy released at the source, which has one value per earthquake, against intensity, the felt effect at a particular place, which falls with distance and is reported on scales such as MSK.
Hindi Meaning
भूकंपीय (bhūkampīya).
Common Questions
- How many seismic zones is India divided into?
- Four, numbered II to V under IS 1893 (Part 1):2016. The former Zone I was merged into Zone II in the 2002 edition.
- What is the difference between magnitude and intensity?
- Magnitude measures energy released at the source and is a single value for the earthquake; intensity measures shaking felt at a given place and varies with distance and local ground conditions.
Seen in UPSC Question Papers
- Prelims 2024 — Disaster Management
- Prelims 2016 — Disaster Management
- Prelims 2015 — Disaster Management
Real UPSC previous-year questions whose text uses “Seismic” — proof this word earns its place on your list.
Tip: press Alt+S to hear pronunciation
