DB/T 78-2018 in English

VALID

Earthquake disaster assessment based on remote sensing-Extreme earthquake disaster area

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

Price(USD)： $170.00
$165.00

Standard No:	DB/T 78-2018
Document status:	VALID
Title in English:	Earthquake disaster assessment based on remote sensing-Extreme earthquake disaster area
Title in Chinese:	地震灾害遥感评估地震极灾区范围
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
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Introduction

Analysis of the Standard's Core Content

The DB/T 78-2018 standard defines a technical framework for using remote sensing imagery to assess hazard levels in meiseis zones, focusing on addressing the timeliness of traditional ground-based surveys. Following implementation, the assessment response time for earthquakes of magnitude 7 or greater has been reduced to six hours.

Comparison of Technical Frameworks

Evaluation Dimensions	Traditional Methods	Remote Sensing Evaluation
Coverage	Local Sampling	Full Coverage
Response Time	24-72 hours	2-6 hours
Data Accuracy	Centimeters (Point)	Meters (Surface)

Key Technical Indicators

Image resolution requirements: The spatial resolution of remote sensing data used for assessment should reach 2-10 meters (Article 6.1.2)
Response level:
- M<7.0: Start assessment within 2 hours
- M≥7.0: Complete preliminary assessment within 6 hours (Article 4.4)
Assessment elements:
- Building damage rate (structural type needs to be distinguished)
- Scope of secondary geological hazards
- Damage to transportation infrastructure