DB/T 77-2018 in English

VALID

Earthquake disaster assessment based on remote sensing-Seismic intensity

Issued on:2018-12-26
Implemented on:2019-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $210.00
$204.00

Standard No:	DB/T 77-2018
Document status:	VALID
Title in English:	Earthquake disaster assessment based on remote sensing-Seismic intensity
Title in Chinese:	地震灾害遥感评估地震烈度
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-12-26
Implemented on:	2019-03-01
Professional Classification:	DB-Provincial Standard
Related Keywords:	earthquake intensity assessment earthquake disaster assessment remote sensing-seismic intensity introduction standard background china earthquake intensity scale earthquake hazard assessment technology pipeline
Related Topics:	iec on earthquakes iec earthquake iec earthquake iec+ earthquake remote sensing telemetry Earthquake Phase II shock device Geography and Remote Sensing remote sensing assessment sensor earthquake Telemetry and remote sensing recent earthquake Telemetry and remote sensing shock global disaster Is there an earthquake? Earthquake August 13 two disasters earthquake operation European Seismic Intensity Scale 1998 PDF Liujing Earthquake Bureau Earthquake Disaster Risk Assessment Technology Flood and Drought Disaster Remote Sensing Monitoring and Assessment Technology seismic mercury Remote sensing coal Earthquake disaster industry db 5329/t 77

Introduction

Standard Background and Positioning

DB/T77-2018, a technical standard for the seismic industry, systematically establishes a methodology for earthquake intensity assessment based on remote sensing imagery for the first time. This standard complements GB/T17742-2008, "China Earthquake Intensity Scale," and GB/T18208.3-2011, "Seismic Field Work Part 3: Investigation Specification," and together they strengthen my country's earthquake hazard assessment technology pipeline.

Core Technology Innovation

Technical Dimension	Traditional Method	This Standard Method
Data Source	Mainly Field Investigation	Remote Sensing + Field Verification
Evaluation Efficiency	More than 72 hours	Preliminary evaluation within 24 hours
Spatial Accuracy	1km²	0.01km²

Key Technical Indicators

Intensity Conversion Model

The standard proposes intensity-disaster index conversion formulas for three typical areas:

Plain area: D_G=1.146×D_R^0.457+0.18
Hillary area: D_G=1.146×D_R^0.457+0.12
High intensity area: D_G=0.851×D_R^0.307+0.05

Implementation and application suggestions

Data Fusion: It is recommended to combine high-resolution satellite imagery with drone aerial data.
Time Limitation: For earthquakes with a magnitude of M ≥ 7.0, preliminary assessments should be completed within 48 hours.
Verification Mechanism: Remote sensing interpretation results must be verified by ≥ 15% on-site sampling.

Standard Evolution Analysis

This standard's technical approach was validated in the 2013 Lushan 7.0 and 2014 Ludian 6.5 earthquakes. Compared to the technical solution used during the 2008 Wenchuan earthquake, assessment efficiency has increased by 300% and spatial resolution by two orders of magnitude.

More samples: JC/T 2453-2018 DL/T 5154-2012 JGJ 94-2008

Sample only — not a preview of DB/T 77-2018