Rapidly evaluating damage using high density networks in noisy urban environments
Abstract/Contents
- Abstract
- Rapidly determining the extent of damage as soon as possible after a major earthquake is of utmost importance to saving lives and downtime costs. Earthquake Early Warning (EEW) systems are being developed using traditional seismometers, but with costs of millions of dollars, they are cost prohibitive for many countries. By incorporating low-cost micro-electro-mechanical-systems (MEMS) sensors, it is possible to create a working seismic network that has the potential for EEW and creating maps of estimated shaking for a fraction of the cost of a traditional network. The Quake-Catcher Network (QCN) has roughly 2000 MEMS sensors around the world, with particularly dense arrays in New Zealand, Chile, and the San Francisco Bay and Los Angeles areas. When testing the possibility of using QCN as an EEW system, it was clear that traditional rapid magnitude estimation techniques, like those used in other EEW systems, would not work with the QCN dataset due to their lower quality data. In this thesis, I explore the use of these new devices in combination with new and old seismic methods. Following a major earthquake, a potentially damaged building must be inspected before it is reoccupied. With tall buildings, however, it may be difficult to determine the extent of the structural damage. By utilizing urban networks located in buildings, I show that it is possible to use ambient vibrations of the building to obtain a building response in less than a day, and using a single station alone.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2014 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Chung, Angela Isobel |
|---|---|
| Associated with | Stanford University, Department of Geophysics. |
| Primary advisor | Lawrence, Jesse |
| Thesis advisor | Lawrence, Jesse |
| Thesis advisor | Beroza, Gregory C. (Gregory Christian) |
| Thesis advisor | Segall, Paul, 1954- |
| Advisor | Beroza, Gregory C. (Gregory Christian) |
| Advisor | Segall, Paul, 1954- |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Angela Isobel Chung. |
|---|---|
| Note | Submitted to the Department of Geophysics. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2014. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2014 by Angela Isobel Chung
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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