experimental

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 byViqui Agazzi
accepted on 16 Nov 2023 16:16:41.740

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date accepted 16 Nov 2023 16:16:41.740
date submitted 16 Nov 2023 15:22:25.975
definition
entity Aftershock
source graph graph

item class feature of interest | Concept
label Aftershock
notation c_3311d0a2
register earthfeaturetype
status status experimental
submitter
account name victoria.agazzi@teledetection.fr
name Viqui Agazzi

type register item
version info 2
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Definition

broader Earthquake
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.
exact match c 20b1dd6a
in scheme Earth features types
pref label Aftershock
type Concept | feature of interest