HR: 12:05h
AN: S32B-08 [Abstracts]
TI: Methods of Multivariable Earthquake Precursor Analysis and a Proposed Prototype Earthquake Early Warning System
AU: Rojas, J I
EM: rojas@fa.upc.edu
AF: Universitat Politecnica de Catalunya (UPC), Escola Politecnica Superior de Castelldefels
(EPSC)
Avda. del Canal Olimpic s/n, Castelldefels, 08860, Spain
AU: * Fletcher, L E
EM: lauren162@hotmail.com
AF: NASA Ames Research Center, Building 245, Room 212, Moffett Field, CA 94035, United
States
AB:
Significant advances are being made in earthquake prediction theory; however, a reliable method for forecasting
the occurrence of earthquakes from space and/or ground based technologies remains limited to no more than a
few minutes before the event happens. Several claims of earthquake precursors have been put forward, such as
ionospheric changes, electromagnetic effects, and ground heating, though the science behind these is far from
complete and the successful application of these precursors is highly regionally variable. Existing and planned
dedicated space missions for monitoring earthquake precursors are insufficient for resolving the precursor
issue. Their performance does not satisfy the requirements of an earthquake early warning system in terms of
spatial and temporal coverage (Pulinets and Boyarchuk, 2004). To achieve statistically significant validation of
precursors for early warning delivery, precursor data must be obtained from simultaneous repeated monitoring of
several precursors in focus regions over a long period of time and then integrated and processed. Data sources
include historical data, data from ground-based units, airborne systems, and space-based systems.
This paper describes methods of systematic evaluation of regionally specific, multivariable precursor data
needed for the identification of the expected time, magnitude and the position of the epicentre. This data set
forms the basis for a proposed operational early warning system developed at the International Space University
and which is built in partnership with local and national governments as well as international organizations.
DE: 1241 Satellite geodesy: technical issues (6994, 7969)
DE: 7223 Earthquake interaction, forecasting, and prediction (1217, 1242)
SC: Seismology [S]
MN: 2007 Fall Meeting