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![First thumbnail for: Seismic velocity precursors to the <span class="se...]()
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![(A) Map of seismicity before the 30 October 2016, Mw 6.5 Norcia earthquake, showing focal mechanisms of large shocks and traces of sections mentioned in the text (bold red traces are portions of sections shown in Figures 3 and 4). Hypocentral depth and magnitude are scaled with color and symbols. (B) Vertical section of Vp across the fault (from the last seismic snapshot before the main shock; see Fig. 2C), where the purple line delimits the well-resolved area. The incipient rupturing fault is represented with a solid red line. Note the abundant seismicity occurring both on and near the fault that is about to rupture. This seismicity is persistent through the monitoring period. (C) Geological sketch of the box in B, modified from Scognamiglio et al. (2018). Top Jurassic (J) carbonates and evaporites are shown by black lines, along with the main normal (solid) and thrust (dashed) faults.]()
![Maps of ground shaking for the 30 October 2016 M 6.5 Norcia earthquake. The maps have been created using the new configuration and (a–c) the v.4 and (d–f) the v.3.5 of the U.S. Geological Survey (USGS)‐ShakeMap software. (a,d) Mercalli–Cancani–Sieberg (MCS) intensity, (b,e) PGA, (c,f) PGV. The inset shows the area that has been used to determine the differences of the ShakeMap grid point values between 2008 and new configuration (Fig. 9c and Fig. S9).]()
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![Illustration of the doughnut effect for (a) the 7 November 2016 M 5 Cushing, Oklahoma, earthquake and (b) the 30 October 2016 M 6.6 Norcia, Italy, earthquake. For the Cushing earthquake, the maximum “Did You Feel It?” (DYFI) intensity is of 6.7 at 5.5 km of the epicenter (see Data and Resources). The maximum DYFI intensity is 9 in Norcia for the eponym earthquake (see Data and Resources). There were no application launches nor felt reports collected within 10 min and 15 km of the Cushing epicenter (a), this gap being filled after 10 min. For the damaging Norcia earthquake, within the same time and distance windows, only one damaging felt report was collected. No other felt reports were collected within 15 km of the epicenter, despite several late (i.e., after 10 min) application launches. Only observations collected within 1 hr of the earthquakes are presented.]()
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![(A) Map of distribution of earthquakes during 2016–2017 Central Italy seismic sequence (Tan et al., 2021). Stars highlight main-shock epicenters. Lines show traces of major regional faults. (B) Evolution of basement seismic rate (depth >9 km) during sequence (Eqs—earthquakes). Vertical lines mark occurrences of main shocks: A—Amatrice; V—Visso; N—Norcia; C—Campotosto. (C) Plan view at depth of 10 km showing Coulomb stress change (see SM1 [text footnote 1]) and aftershocks (from 10 to 11 km) of Norcia main shock within 30 days. Black rectangle is Norcia main shock fault box.]()
![(a) Comparison of PGA and Housner intensity values between MEMS prototypes and HQ stations for both the Accumoli and Norcia earthquakes. (b) Examples of east–west (E‐W) horizontal response spectra for the 24 August 2016 Accumoli earthquake (bottom) and the 30 October Norcia earthquakes (top) for the MEMS and the reference stations ISMD RAN (the distances between MEMS and RAN stations are 1.3 and 2.6 km, respectively). The color version of this figure is available only in the electronic edition.]()
![(a) Solution of the inversion of the deviatoric MT for the 30 October 2016 Norcia earthquake. (b) Full MT inversion results. The color version of this figure is available only in the electronic edition.]()
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![Geological map of the Norcia region. Yellow stars indicate the epicenter of seismic events with a magnitude larger than 5.0 (Istituto Nazionale di Geofisica e Vulcanologia [INGV] catalog, Italian Seismological Instrumental and Parametric Data‐Base [ISIDE] 2016) that occurred during the 2016–2017 earthquake sequence. Triangles with different colors indicate the location of strong‐motion stations considered in this study. The color scheme of the geological units is based on the VS30 site classification. Black rectangles indicate the surface projection of the two segment fault model of the 30 October 2016 Mw 6.5 Norcia earthquake (Scognamiglio et al., 2018). The white square shown in the inset of the Italia peninsula indicates the location of the study area.]()
![First thumbnail for: Reconnaissance of <span class="search-highlight">2...]()
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1-20 OF 259 RESULTS FOR
Norcia earthquake 2016
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Journal Article
Deterministic 3D Ground‐Motion Simulations (0–5 Hz) and Surface Topography Effects of the 30 October 2016 M w 6.5 Norcia, Italy, Earthquake Available to Purchase
Publisher: Seismological Society of America
Published: 07 September 2021
Bulletin of the Seismological Society of America (2022) 112 (1): 262–286.
...Arben Pitarka; Aybige Akinci; Pasquale De Gori; Mauro Buttinelli ABSTRACT The M w 6.5 Norcia, Italy, earthquake occurred on 30 October 2016 and caused extensive damage to buildings in the epicentral area. The earthquake was recorded by a network of strong‐motion stations, including 14 stations...
FIGURES
Journal Article
Seismic velocity precursors to the 2016 Mw 6.5 Norcia (Italy) earthquake Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 June 2020
Geology (2020) 48 (9): 924–928.
... similar preparatory phases in nature remains difficult because it requires dense monitoring in advance. The 2016 Amatrice-Visso-Norcia (central Italy) earthquake cascade, captured by an unprecedented seismic network, provided a unique testing ground to image the preparatory phase of a large event...
FIGURES
Journal Article
Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 M w 6.5 Norcia, Central Italy, Earthquake Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 27 December 2018
Seismological Research Letters (2019) 90 (2A): 659–671.
...:36 UTC, M w 6.1), which occurred near Amatrice and was followed two months later by other two large earthquakes near Ussita (26 October 2016 19:18 UTC, M w 5.9) and Norcia (30 October 2016 06:40 UTC, M w 6.5) (Fig. 4 and Table 2 ). The events were recorded by about 600...
FIGURES
Includes: Supplemental Content
Image
(A) Map of seismicity before the 30 October 2016, Mw 6.5 Norcia earthquake,... Available to Purchase
Published: 01 June 2020
Figure 1. (A) Map of seismicity before the 30 October 2016, Mw 6.5 Norcia earthquake, showing focal mechanisms of large shocks and traces of sections mentioned in the text (bold red traces are portions of sections shown in Figures 3 and 4 ). Hypocentral depth and magnitude are scaled
Image
Maps of ground shaking for the 30 October 2016 M 6.5 Norcia earthquake. T... Available to Purchase
in The New ShakeMap in Italy: Progress and Advances in the Last 10 Yr
> Seismological Research Letters
Published: 30 October 2019
Figure 8. Maps of ground shaking for the 30 October 2016 M 6.5 Norcia earthquake. The maps have been created using the new configuration and (a–c) the v.4 and (d–f) the v.3.5 of the U.S. Geological Survey (USGS)‐ShakeMap software. (a,d) Mercalli–Cancani–Sieberg (MCS) intensity, (b,e) PGA, (c,f
Journal Article
Temporal Variation of the Spectral Decay Parameter Kappa Detected before and after the 2016 Main Earthquakes of Central Italy Available to Purchase
Publisher: Seismological Society of America
Published: 25 October 2022
Bulletin of the Seismological Society of America (2022) 112 (6): 3037–3045.
..., namely the Amatrice ( M w 6.0) of 24 August 2016 and the Norcia ( M w 6.5) of 30 October 2016 earthquakes. For this analysis, we used seismograms from the central Italy dense seismic array stations, and earthquakes located at hypocenter distances r < 80 km, having magnitudes M w 3.4–6.5. The dataset...
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Journal Article
2016–2017 Central Italy Earthquake Sequence: Seismic Retrofit Policy and Effectiveness Available to Purchase
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 November 2018
Earthquake Spectra (2018) 34 (4): 1671–1691.
... and nearby villages. The event with the largest magnitude, M6.5, however, occurred on 30 October 2016, centered near the town of Norcia, North of Amatrice, with a larger affected area that overlapped that of the Amatrice earthquake. This event caused no fatalities because most of the affected areas had been...
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Journal Article
The Campotosto linkage fault zone between the 2009 and 2016 seismic sequences of central Italy: Implications for seismic hazard analysis Open Access
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 14 December 2020
GSA Bulletin (2021) 133 (7-8): 1679–1694.
... be carried out considering the seismological data provided, in particular, by the 2009-L′Aquila (Mw = 6.3) and the 2016-Amatrice-Visso-Norcia (Mw max = 6.5) earthquakes. Moreover, these high-resolution data, together with the geological surveys carried out immediately after the mainshocks, allowed us...
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Journal Article
On the Integrated Surface Uplift for Dip‐Slip Faults Available to Purchase
Publisher: Seismological Society of America
Published: 12 November 2019
Bulletin of the Seismological Society of America (2019) 109 (6): 2738–2740.
...) argue that the negative uplift volume associated with the 2016 Amatrice–Norcia, central Italy, earthquake sequence requires a coseismic volume collapse of the hanging wall. Using results for dip‐slip dislocations in an elastic half‐space we show that V uplift = ( P / 4 ) ( 1 − 2 ν ) sin ( 2 δ...
Image
Illustration of the doughnut effect for (a) the 7 November 2016 M 5 Cushi... Available to Purchase
in Felt Reports for Rapid Mapping of Global Earthquake Damage: The Doughnut Effect?
> Seismological Research Letters
Published: 06 December 2017
Figure 8. Illustration of the doughnut effect for (a) the 7 November 2016 M 5 Cushing, Oklahoma, earthquake and (b) the 30 October 2016 M 6.6 Norcia, Italy, earthquake. For the Cushing earthquake, the maximum “Did You Feel It?” (DYFI) intensity is of 6.7 at 5.5 km of the epicenter (see Data
Journal Article
Machine‐Learning‐Based High‐Resolution Earthquake Catalog Reveals How Complex Fault Structures Were Activated during the 2016–2017 Central Italy Sequence Open Access
Journal: The Seismic Record
Publisher: Seismological Society of America
Published: 04 May 2021
The Seismic Record (2021) 1 (1): 11–19.
... Amatrice event on 24 August 2016, followed by the M w 5.9 Visso event on 26 October and the M w 6.5 Norcia event on 30 October. We analyze continuous data from a dense network of 139 seismic stations to build a high‐precision catalog of ∼ 900 , 000 earthquakes spanning a 1 yr period, based on arrival times...
FIGURES
Includes: Supplemental Content
Image
![(A) Map of distribution of earthquakes during 2016–2017 Central Italy seismic sequence (Tan et al., 2021). Stars highlight main-shock epicenters. Lines show traces of major regional faults. (B) Evolution of basement seismic rate (depth >9 km) during sequence (Eqs—earthquakes). Vertical lines mark occurrences of main shocks: A—Amatrice; V—Visso; N—Norcia; C—Campotosto. (C) Plan view at depth of 10 km showing Coulomb stress change (see SM1 [text footnote 1]) and aftershocks (from 10 to 11 km) of Norcia main shock within 30 days. Black rectangle is Norcia main shock fault box.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/geology/51/10/10.1130_G51432.1/3/s_g51432.1_f01.png?Expires=2147483647&Signature=YMRu1icX6Yte8O50qixE2a5BteJoKVdUsIeFmoGerfbwYmTfqUCeYtR-SSURpLY8FrJrnixvftWzhK0ULvlzJnJXRkfQZFS0ABhZ6PgE2pW4dDp-wxvcwWnVAdXnxq1-gGqe7VM6PpE5KP5biI8whYdqFdTdBH66ojxhRo9pp5tcOZ65DB7nUuPqrg3OLQJXipA9ijNZO2y1Q8Kf7QQJSamdnwszzSBIHkeKOxQAOalQZUUzloSnqesN9f~GZIIH5Kg1A3-mhUP7fvpG5~sV5XWNrmO6juIaFxEyvEP3YfU6F-dqMPKKRiGSYOcyXbMkOLtuaSH1tO9TTa4LO05xUQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
(A) Map of distribution of earthquakes during 2016–2017 Central Italy seism... Open Access
Published: 14 August 2023
Figure 1. (A) Map of distribution of earthquakes during 2016–2017 Central Italy seismic sequence ( Tan et al., 2021 ). Stars highlight main-shock epicenters. Lines show traces of major regional faults. (B) Evolution of basement seismic rate (depth >9 km) during sequence (Eqs—earthquakes
Image
(a) Comparison of PGA and Housner intensity values between MEMS prototypes ... Available to Purchase
in 2016 Central Italy Earthquakes Recorded by Low‐Cost MEMS‐Distributed Arrays
> Seismological Research Letters
Published: 27 December 2018
Figure 4. (a) Comparison of PGA and Housner intensity values between MEMS prototypes and HQ stations for both the Accumoli and Norcia earthquakes. (b) Examples of east–west (E‐W) horizontal response spectra for the 24 August 2016 Accumoli earthquake (bottom) and the 30 October Norcia earthquakes
Image
(a) Solution of the inversion of the deviatoric MT for the 30 October 2016 ... Open Access
Published: 05 June 2025
Figure 5. (a) Solution of the inversion of the deviatoric MT for the 30 October 2016 Norcia earthquake. (b) Full MT inversion results. The color version of this figure is available only in the electronic edition.
Journal Article
3-D model reveals thermal decomposition as a potential driver of seismicity in the Apennines, Italy Open Access
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 18 July 2024
GSA Bulletin (2025) 137 (1-2): 341–350.
.... Numerical simulations mimic the generation of thermally decomposed fluids and reproduce the 2009 L’Aquila M w 6.3 and the 2016 Amatrice-Visso-Norcia M w 6.5 earthquake sequences. We identify hydraulic barriers and a minimum magnitude (M w > 4) for thermal decomposition, which generate significant...
FIGURES
Image
![Geological map of the Norcia region. Yellow stars indicate the epicenter of seismic events with a magnitude larger than 5.0 (Istituto Nazionale di Geofisica e Vulcanologia [INGV] catalog, Italian Seismological Instrumental and Parametric Data‐Base [ISIDE] 2016) that occurred during the 2016–2017 earthquake sequence. Triangles with different colors indicate the location of strong‐motion stations considered in this study. The color scheme of the geological units is based on the VS30 site classification. Black rectangles indicate the surface projection of the two segment fault model of the 30 October 2016 Mw 6.5 Norcia earthquake (Scognamiglio et al., 2018). The white square shown in the inset of the Italia peninsula indicates the location of the study area.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/bssa/112/1/10.1785_0120210133/2/s_0120210133fig1.png?Expires=2147483647&Signature=1UFAw1Qv2OMVV0luIu8iODlsVXjEth8PYG7qYBls7K7NlYYH-QkUjieWqdHuWzrkCX7mhlIuYtSKzYFLtQ~S4Bm3kejdnEG6AYTaLyeGuZJC2OlYVWcPYKPNjseI7nZPS6eIc7kbZBXfmbV~NPg856vDbu2eLnPG3fg~Wo6DHHjBrD3iH5tAbkls3BuQALnvRaU-3GtWbYYxK~5rbVPqws4Tyqoprz07nPr-wd-BVB7oad2fFuyt6K0Zznak8mBpJnuhuSoUg3yd5XNv9UPv~rTAFw1Nqpr6c5y60cN~cOo6K0t21GAFmptkB0IGojGy73k6z9OGTp9qOj-mVbNQpw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Geological map of the Norcia region. Yellow stars indicate the epicenter of... Available to Purchase
in Deterministic 3D Ground‐Motion Simulations (0–5 Hz) and Surface Topography Effects of the 30 October 2016 M w 6.5 Norcia, Italy, Earthquake
> Bulletin of the Seismological Society of America
Published: 07 September 2021
fault model of the 30 October 2016 M w 6.5 Norcia earthquake ( Scognamiglio et al. , 2018 ). The white square shown in the inset of the Italia peninsula indicates the location of the study area.
Journal Article
Reconnaissance of 2016 Central Italy Earthquake Sequence Available to Purchase
Journal: Earthquake Spectra
Publisher: Earthquake Engineering Research Institute
Published: 01 November 2018
Earthquake Spectra (2018) 34 (4): 1547–1555.
... The Central Italy earthquake sequence nominally began on 24 August 2016 with a M 6.1 event on a normal fault that produced devastating effects in the town of Amatrice and several nearby villages and hamlets. A major international response was undertaken to record the effects of this disaster, including...
FIGURES
Journal Article
Accessing European Strong‐Motion Data: An Update on ORFEUS Coordinated Services Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 17 February 2021
Seismological Research Letters (2021) 92 (3): 1642–1658.
...‐motion (ESM) databases and associated web interfaces and webservices. We compare and discuss the role and use of these two systems using the M w 6.5 Norcia (Central Italy) earthquake that occurred on 30 October 2016 as an example of a well‐recorded earthquake that triggered major interest...
FIGURES
Journal Article
Temporal Variability of Ground Shaking and Stress Drop in Central Italy: A Hint for Fault Healing? Available to Purchase
Publisher: Seismological Society of America
Published: 03 July 2018
Bulletin of the Seismological Society of America (2018) 108 (4): 1853–1863.
... changes after the occurrence of mainshocks such as the 2009 M w 6.3 L'Aquila, the 2016 M w 6.2 Amatrice, and M w 6.5 Norcia earthquakes. Within the time span of a few months after the mainshocks, the between‐event contribution to the ground shaking varies by a factor 7. In particular, we find a large drop...
FIGURES
Includes: Supplemental Content
Journal Article
Impact of Magnitude Selection on Aleatory Variability Associated with Ground‐Motion Prediction Equations: Part I—Local, Energy, and Moment Magnitude Calibration and Stress‐Drop Variability in Central Italy Available to Purchase
Publisher: Seismological Society of America
Published: 01 May 2018
Bulletin of the Seismological Society of America (2018) 108 (3A): 1427–1442.
... occurred in the area, including those associated with the 2009 M w 6.3 L'Aquila earthquake and the 2016–2017 sequence ( M w 6.2 Amatrice, M w 6.1 Visso, and M w 6.5 Norcia earthquakes). We calibrated a local magnitude scale, investigating the impact of changing the reference distance at which...
FIGURES
Includes: Supplemental Content
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