This book assesses the 50 regional seismic networks funded by various federal, state, and private sources that operate autonomously in the United States. Most have aging equipment and suffer from declining sources of operating funds. Yet, they provide valuable scientific data as well as information about seismicity and earthquakes around their locales.
The volume describes the advent of the new National Seismic Network, operated by the U.S. Geological Survey. The National Seismic Network provides a unique opportunity to integrate the regional networks with the national network. This system will preserve the valuable work of the regional networks and enhance the capabilities of the national network.
Author(s): Panel on Regional Networks, Committee on Seismology, Board on Earth Sciences and Resources, National Research Council
Publisher: National Academy Press
Year: 1990
Language: English
Pages: 67
City: Washington, D.C.
Tags: Seismological stations -- United States;Earthquakes -- United States;Information networks -- United States;Seismology -- Information services -- United States;Seismology -- Research -- United States;NATURE -- Earthquakes & Volcanoes;SCIENCE -- Earth Sciences -- Seismology & Volcanism;Earthquakes;Seismological stations;United States
ASSESSING THE NATION'S EARTHQUAKES
Copyright
Preface
Contents
Executive Summary
1Introduction and Background
2 Contributions to Date of Regional Seismic Networks
3 Problems and Constraints
OBSOLETE INSTRUMENTATION
DATA-HANDLING DIFFICULTIES
OPERATIONAL DIFFICULTIES
ARE REGIONAL NETWORKS COST-EFFECTIVE?
4 The Need for Regional Seismic Networks
CASE STUDY: THE 1987 WHITTIER NARROWS EARTHQUAKE IN THE LOS ANGELES METROPOLITAN AREA, CALIFORNIA
CASE STUDY: THE 1986 PAINESVILLE EARTHQUAKE IN NORTHEASTERN OHIO 5 The U.S. National Seismic Network DESIGN OBJECTIVES
STATION CHARACTERISTICS
DATA TRANSMISSION
DATA PROCESSING
INTERFACE WITH NATIONAL AND REGIONAL STATIONS
6 The Future: A National Seismic System
ADVANTAGES OF A NATIONAL SEISMIC SYSTEM
CURRENT AND PROJECTED COSTS OF A NATIONAL SEISMIC SYSTEM
7 Findings and Recommendations
References
APPENDIXES
Appendix A Survey of Regional Seismic Networks
Appendix B Interagency Agreement Between the United States Nuclear Regulatory Commission and the United States Geological� ELEMENTS OF AGREEMENT:Appendix C A Revitalization of Regional Seismic Networks: Implementation Strategies
INTRODUCTION
REGIONAL NETWORKS�CAPABILITIES AND LIMITATIONS
THE U.S. NATIONAL SEISMIC NETWORK
NATIONAL-REGIONAL NETWORK INTERACTIONS
DATA REQUIREMENTS FOR REGIONAL NETWORKS
RECOMMENDATIONS
USNSN Deployment
Implementation Experiment
Hardware Development
Software Development
Funding Strategy
