**Summary:**
In response to a parliamentary question on seismic monitoring and microzonation, the Ministry of Earth Sciences (MoES) reported on advancements in India's seismic observation capabilities and microzonation efforts. As of August 7, 2025, the National Seismic Network comprises 168 operational observatories, an increase from approximately 150 in 2020, with real-time data reporting via VSAT. Between January 1, 2020, and June 30, 2025, a total of 80,029 earthquakes were recorded within the grid of 0-40°N and 60-100°E, with 3,032 of these recorded within India, including the Bay of Bengal and Andaman Sea. Seismic Microzonation data, produced by the MoES through the National Centre for Seismology (NCS) based on MoES guidelines, has been completed for Chennai, Coimbatore, Bhubaneswar, and Mangalore, with reports released in July 2025. Furthermore, seismic microzonation projects are in advanced stages of completion for Patna, Varanasi, Lucknow, Kanpur, Meerut, Agra, Dhanbad (Jharkhand), and Amritsar. This information was provided by Dr. Jitendra Singh, Union Minister of State (Independent Charge) for Science and Technology, Earth Sciences, MoS PMO, MoS Personnel, Public Grievances Pensions, Department of Atomic Energy and Department of Space, in a written reply in the Rajya Sabha.
Key Entities Referenced
Ministry of Earth Sciences: The Indian government ministry responsible for seismic monitoring and microzonation.
National Seismic Network: Network of seismic observatories across India.
National Centre for Seismology NCS: An organisation under Ministry of Earth Sciences (MoES) responsible for producing Seismic Microzonation data.
Chennai, Tamil Nadu: City in Tamil Nadu covered for Seismic Microzonation.
Coimbatore, Tamil Nadu: City in Tamil Nadu covered for Seismic Microzonation.
Bhubaneswar, Odisha: City in Odisha covered for Seismic Microzonation.
Mangalore, Karnataka: City in Karnataka covered for Seismic Microzonation.
Dr. Jitendra Singh: Union Minister of State Independent Charge for Science and Technology, Earth Sciences, MoS PMO, MoS Personnel, Public Grievances Pensions, Department of Atomic Energy and Department of Space.
Ministry of Earth Sciences
Parliament question: Seismic monitoring and
microzonation
Posted On: 07 AUG 2025 4:01PM by PIB Delhi
Seismic observatories of National Seismic Network have increased from about 150 stations in 2020 to 168
operational observatories till date, with real‑time data reporting via VSAT.
st th o
Total 80029 earthquakes were recorded during 01 January 2020 to 30 June 2025 in the grid of 0-40 N and 60
o
-100 E of which 3032 were recorded within the country including Bay of Bengal, Andaman Sea during last five
years.
Seismic Microzonation data is produced by the Ministry of Earth Sciences (MoES) through National Centre for
Seismology (NCS) and is based on guidelines framed by MoES. Since 2020, cities of Chennai, Coimbatore,
Bhubaneswar, and Mangalore are covered for Seismic Microzonation and the related reports are released
recently in July 2025. Additionally, cities such as Patna, Varanasi, Lucknow, Kanpur, Meerut, Agra, Dhanbad,
Amritsar are in advanced stage of completion, where Dhanbad comes in Jharkhand.
This information was given by Dr. Jitendra Singh, Union Minister of State (Independent Charge) for Science
and Technology, Earth Sciences, MoS PMO, MoS Personnel, Public Grievances & Pensions, Department of
Atomic Energy and Department of Space, in a written reply in the Rajya Sabha today.
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NKR/PSM/AV
(Release ID: 2153582)