Details
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2248-2250 |
| Number of pages | 3 |
| ISBN (electronic) | 9781538671504 |
| ISBN (print) | 9781538671511 |
| Publication status | Published - 31 Oct 2018 |
| Event | 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Valencia, Spain Duration: 22 Jul 2018 → 27 Jul 2018 |
Abstract
In this study, coseismic and postseismic deformation following the October 31, 2013 M 6.4 earthquake in eastern Taiwan is investigated using InSAR and GPS measurements. The InSAR data includes a pair of ascending and descending SAR data from Radarsat-II satellite covering the mainshock. The GPS measurements span the earthquake and up to 340 days after the event. The geodetic measurements of coseismic deformation are inverted to determine fault geometry and slip distribution. GPS time series data are analyzed by Principal Component Analysis based Inversion Method (PCAIM) to derive space and time distribution of postseismic fault slip. The main coseismic slip in the best fitting oblique-thrust dislocation shows two clear asperities: a small asperity at a depth of about 5 km with a maximum slip of 0.6 m and a larger asperity between depths of 15-25 km with maximum slip of 1 m. There is little slip above 5 km, suggesting the presence of active subsurface (blind) faulting under the Central Range. The mainshock is followed by widespread frictional afterslip on one patch which is localized close to the deepest coseismic asperity.
Keywords
- Coseismic, Earthquake, InSAR, PCAIM, Postseismic
ASJC Scopus subject areas
- Computer Science(all)
- Computer Science Applications
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 2248-2250 8518174.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Spatiotemporal evolution of seismic slip of the 31 October 2013 Ruisui, Taiwan, earthquake
AU - Vajedian, Sanaz
AU - Motagh, Mahdi
AU - Samsonov, Sergey V.
N1 - Publisher Copyright: © 2018 IEEE Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018/10/31
Y1 - 2018/10/31
N2 - In this study, coseismic and postseismic deformation following the October 31, 2013 M 6.4 earthquake in eastern Taiwan is investigated using InSAR and GPS measurements. The InSAR data includes a pair of ascending and descending SAR data from Radarsat-II satellite covering the mainshock. The GPS measurements span the earthquake and up to 340 days after the event. The geodetic measurements of coseismic deformation are inverted to determine fault geometry and slip distribution. GPS time series data are analyzed by Principal Component Analysis based Inversion Method (PCAIM) to derive space and time distribution of postseismic fault slip. The main coseismic slip in the best fitting oblique-thrust dislocation shows two clear asperities: a small asperity at a depth of about 5 km with a maximum slip of 0.6 m and a larger asperity between depths of 15-25 km with maximum slip of 1 m. There is little slip above 5 km, suggesting the presence of active subsurface (blind) faulting under the Central Range. The mainshock is followed by widespread frictional afterslip on one patch which is localized close to the deepest coseismic asperity.
AB - In this study, coseismic and postseismic deformation following the October 31, 2013 M 6.4 earthquake in eastern Taiwan is investigated using InSAR and GPS measurements. The InSAR data includes a pair of ascending and descending SAR data from Radarsat-II satellite covering the mainshock. The GPS measurements span the earthquake and up to 340 days after the event. The geodetic measurements of coseismic deformation are inverted to determine fault geometry and slip distribution. GPS time series data are analyzed by Principal Component Analysis based Inversion Method (PCAIM) to derive space and time distribution of postseismic fault slip. The main coseismic slip in the best fitting oblique-thrust dislocation shows two clear asperities: a small asperity at a depth of about 5 km with a maximum slip of 0.6 m and a larger asperity between depths of 15-25 km with maximum slip of 1 m. There is little slip above 5 km, suggesting the presence of active subsurface (blind) faulting under the Central Range. The mainshock is followed by widespread frictional afterslip on one patch which is localized close to the deepest coseismic asperity.
KW - Coseismic
KW - Earthquake
KW - InSAR
KW - PCAIM
KW - Postseismic
UR - http://www.scopus.com/inward/record.url?scp=85063133321&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2018.8518174
DO - 10.1109/IGARSS.2018.8518174
M3 - Conference contribution
AN - SCOPUS:85063133321
SN - 9781538671511
SP - 2248
EP - 2250
BT - 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018
Y2 - 22 July 2018 through 27 July 2018
ER -