Entry: Aftershock
URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthfeaturetype/c_3311d0a2
An earthquake occurring as a consequence of a larger earthquake (referred to as the mainshock) at roughly the same location. Aftershocks are smaller than the mainshock and within 1-2 fault lengths distance from the mainshock fault. The sequence of such earthquakes following a larger one generally shows a regular decrease in the rate of occurrence, first discovered by Omori (1894), indicating a stress relaxation and redistribution process as the rocks accommodate to their new post-earthquake state. Aftershocks can continue over a period of weeks, months, or years, decreasing in frequency with time. In general, the larger the mainshock, the larger and more numerous the aftershocks, and the longer they will continue.
Core metadata
| is a | Concept | feature of interest |
| submitted by | Viqui Agazzi |
| accepted on | 16 Nov 2023 16:16:41.740 |
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All metadata properties
| date accepted |
16 Nov 2023 16:16:41.740
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| date submitted |
16 Nov 2023 15:22:25.975
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| definition |
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| item class |
feature of interest
| Concept
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| label |
Aftershock
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| notation |
c_3311d0a2
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| register |
earthfeaturetype
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| status |
status experimental
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| submitter |
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| type |
register item
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| version info |
2
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Definition
| broader |
Earthquake
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| definition |
An earthquake occurring as a consequence of a larger earthquake (referred to as the mainshock) at roughly the same location. Aftershocks are smaller than the mainshock and within 1-2 fault lengths distance from the mainshock fault. The sequence of such earthquakes following a larger one generally shows a regular decrease in the rate of occurrence, first discovered by Omori (1894), indicating a stress relaxation and redistribution process as the rocks accommodate to their new post-earthquake state. Aftershocks can continue over a period of weeks, months, or years, decreasing in frequency with time. In general, the larger the mainshock, the larger and more numerous the aftershocks, and the longer they will continue.
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| exact match |
c 20b1dd6a
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| in scheme |
Earth features types
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| pref label |
Aftershock
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| type |
Concept
| feature of interest
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