The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes

Eustasy and glacio- and hydro-isostatic adjustment are the main drivers of regional variability of Holocene relative sea-level (RSL) records. These regional variations in Holocene RSL influence the preservation of coastal wetland stratigraphic records of prehistoric earthquakes along subduction zone...

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Main Authors: Dura, Tina, Engelhart, Simon E., Vacchi, Matteo, Horton, Benjamin Peter, Kopp, Robert E., Peltier, W. Richard, Bradley, Sarah
Other Authors: Asian School of the Environment
Format: Journal Article
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/146615
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author Dura, Tina
Engelhart, Simon E.
Vacchi, Matteo
Horton, Benjamin Peter
Kopp, Robert E.
Peltier, W. Richard
Bradley, Sarah
author2 Asian School of the Environment
author_facet Asian School of the Environment
Dura, Tina
Engelhart, Simon E.
Vacchi, Matteo
Horton, Benjamin Peter
Kopp, Robert E.
Peltier, W. Richard
Bradley, Sarah
author_sort Dura, Tina
collection NTU
description Eustasy and glacio- and hydro-isostatic adjustment are the main drivers of regional variability of Holocene relative sea-level (RSL) records. These regional variations in Holocene RSL influence the preservation of coastal wetland stratigraphic records of prehistoric earthquakes along subduction zone coasts. The length and completeness of prehistoric earthquake records is intrinsically linked to the accommodation space provided by gradually rising (<3 mm/year) Holocene RSL. In near-field regions that were located beneath northern hemisphere ice sheets (e.g., western Vancouver Island), RSL fall from a mid-Holocene highstand has limited prehistoric earthquake records to the last 1 ka. In intermediate field regions (e.g., southern Washington and central Oregon), gradual RSL rise over the last ∼7 ka has preserved widespread records of prehistoric earthquakes. In far-field regions (e.g., Sumatra, Chile, and Japan), fragmentary stratigraphic evidence of prehistoric earthquakes has been preserved only during periods of gradual RSL rise prior to a mid-Holocene highstand, or during the last 1–3 ka, when RSL was within 2 m of modern sea level, and thus within the tidal frame.
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spelling ntu-10356/1466152021-03-03T03:23:23Z The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes Dura, Tina Engelhart, Simon E. Vacchi, Matteo Horton, Benjamin Peter Kopp, Robert E. Peltier, W. Richard Bradley, Sarah Asian School of the Environment Earth Observatory of Singapore Science::Physics Relative Sea Level Glacio-isostatic Adjustment Eustasy and glacio- and hydro-isostatic adjustment are the main drivers of regional variability of Holocene relative sea-level (RSL) records. These regional variations in Holocene RSL influence the preservation of coastal wetland stratigraphic records of prehistoric earthquakes along subduction zone coasts. The length and completeness of prehistoric earthquake records is intrinsically linked to the accommodation space provided by gradually rising (<3 mm/year) Holocene RSL. In near-field regions that were located beneath northern hemisphere ice sheets (e.g., western Vancouver Island), RSL fall from a mid-Holocene highstand has limited prehistoric earthquake records to the last 1 ka. In intermediate field regions (e.g., southern Washington and central Oregon), gradual RSL rise over the last ∼7 ka has preserved widespread records of prehistoric earthquakes. In far-field regions (e.g., Sumatra, Chile, and Japan), fragmentary stratigraphic evidence of prehistoric earthquakes has been preserved only during periods of gradual RSL rise prior to a mid-Holocene highstand, or during the last 1–3 ka, when RSL was within 2 m of modern sea level, and thus within the tidal frame. 2021-03-03T03:23:23Z 2021-03-03T03:23:23Z 2016 Journal Article Dura, T., Engelhart, S. E., Vacchi, M., Horton, B. P., Kopp, R. E., Peltier, W. R., & Bradley, S. (2016). The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes. Current Climate Change Reports, 2(3), 86-100. doi:10.1007/s40641-016-0041-y 2198-6061 https://hdl.handle.net/10356/146615 10.1007/s40641-016-0041-y 2-s2.0-85013937431 3 2 86 100 en Current Climate Change Reports © 2016 Springer International Publishing AG. All rights reserved.
spellingShingle Science::Physics
Relative Sea Level
Glacio-isostatic Adjustment
Dura, Tina
Engelhart, Simon E.
Vacchi, Matteo
Horton, Benjamin Peter
Kopp, Robert E.
Peltier, W. Richard
Bradley, Sarah
The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title_full The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title_fullStr The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title_full_unstemmed The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title_short The role of Holocene relative sea-level change in preserving records of subduction zone earthquakes
title_sort role of holocene relative sea level change in preserving records of subduction zone earthquakes
topic Science::Physics
Relative Sea Level
Glacio-isostatic Adjustment
url https://hdl.handle.net/10356/146615
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