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DB/T 4-2025Coding rules for earthquake monitoring station (English PDF)

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Issued by

China Earthquake Administration

Level / Type

National · Recommended

Issue date

November 27, 2025

Implementation date

June 1, 2026

Scope

DB/T 4-2025 (Coding rules for earthquake monitoring station) is available as an English-translated PDF.

DB/T 4-2025 — This document establishes the coding principles and methods for earthquake monitoring stations, as well as the requirements for using earthquake monitoring station codes.

This document applies to the coding of earthquake monitoring stations constructed by the earthquake industry, as well as the coding of earthquake monitoring stations constructed by local governments and enterprises in other industries. Compiled for reference and use.

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Document preview — DB/T 4-2025

National Standard of the People's Republic of China

ICS
91.120.25
Classification
P 15
Replacing
DB/T 4-2003

Issued by: China Earthquake Administration

Contents

  • Document data1

Document data

International classification (ICS): 91.120.25.

Chinese classification (CCS): P15.

Supersedes the earlier edition DB/T 4-2003.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

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