Abstract
Advanced gravitational-wave detectors such as the laser interferometer gravitational-wave observatories (LIGO) require an unprecedented level of isolation from the ground. When in operation, they measure motion of less than 10-19 m. Strong teleseismic events like earthquakes disrupt the proper functioning of the detectors, and result in a loss of data. An earthquake early-warning system, as well as a prediction model, have been developed to understand the impact of earthquakes on LIGO. This paper describes a control strategy to use this early-warning system to reduce the LIGO downtime by ∼30%. It also presents a plan to implement this new earthquake configuration in the LIGO automation system.
Original language | English (US) |
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Article number | 055004 |
Journal | Classical and Quantum Gravity |
Volume | 35 |
Issue number | 5 |
DOIs | |
State | Published - Jan 31 2018 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 IOP Publishing Ltd.
Keywords
- LIGO
- control
- earthquakes
- seismic