The magnitude 5.1 earthquake that struck Assam on January 5, 2026 was monitored by which agency?

Explanation

The correct agency is the National Center for Seismology, Ministry of Earth Sciences. NCS records the Assam earthquake as “M: 5.1 - Morigaon, Assam”, with origin time 2026-01-05 04:17:40 IST, latitude-longitude 26.37, 92.29, magnitude 5.1 and depth 50 km. These details identify the Morigaon earthquake and support option B. NCS, working under the Ministry of Earth Sciences, monitored the aftershocks of this magnitude 5.1 Assam event. For RAS purposes, the key is not the earthquake parameters alone but the nodal seismology agency responsible for such monitoring.

Why the other options are wrong

• (A) India Meteorological Department did not maintain the official record for this Morigaon earthquake; the record belongs to the National Center for Seismology under the Ministry of Earth Sciences.
• (C) Geological Survey of India is not the seismology agency responsible for this event record; the official earthquake record is attributed to the National Center for Seismology.
• (D) National Geophysical Research Institute was not the monitoring agency for this event; the official monitoring record comes from NCS.

Concept

This tests institutional mapping in disaster and earth-science current affairs: knowing which national agency handles earthquake monitoring. RAS often asks such items because they connect science events with the responsible Government of India institution.

Source

• National Center for Seismology, Ministry of Earth Sciences

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