High-precision Aftershock Locations and Fault Planes of the 2016-2017 Central Italy Sequence
Authors/Creators
- 1. Columbia University
- 2. Maddalena
- 3. Lauro
- 4. Raffaele
- 5. David
Description
The earthquake catalog includes high-precision hypocenter relocations for 390,334
earthquakes recorded during the 2016-2017 Amatrice (Central Italy)
earthquake sequence. The relative locations were computed by double-difference inversion of a
combination of INGV phase picks and cross-correlation differential
times measured from correlated seismograms with correlation coefficients > 0.7.
Planes of normal faults (idx=1-5) are derived from PCA analysis of 2 months of aftershock
locations in the CAT4 catalog following large events. Surfaces of detachment faults (idx=7-10) are derived from mapping out the location of correlated earthquakes.
Citation: Waldhauser, F., Michele, M., Chiaraluce, L., Di Stefano, R., & Schaff, D. P. (2021). Fault planes, fault zone structure and detachment fragmentation resolved with highprecision aftershock locations of the 2016-2017 central Italy sequence. Geophysical Research Letters, 48, e2021GL092918. https://doi.org/10.1029/2021GL092918
Files
Files
(40.7 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:14dfa1250e2a3d153c9e2e061bb3c6d6
|
40.6 MB | Download |
|
md5:0a70ea427f2b35f0169c7d18a68f86c4
|
138.2 kB | Download |
Additional details
Funding
- U.S. National Science Foundation
- Imaging the Fine Structure of Earthquakes and Faults with High-Precision Aftershocks 1520680
- U.S. National Science Foundation
- NSFGEO-NERC: Collaborative Research: The central Apennines Earthquake cascade under a new microscope 1759782
- European Commission
- RISE - Real-time Earthquake Risk Reduction for a Resilient Europe 821115
References
- Waldhauser, F., Michele, M., Chiaraluce, L., Di Stefano, R., & Schaff, D. P. (2021). Fault planes, fault zone structure and detachment fragmentation resolved with high-precision aftershock locations of the 2016-2017 central Italy sequence. Geophysical Research Letters, 48, e2021GL092918. https://doi. org/10.1029/2021GL092918