Definition of "isoseismals" [isoseismals]

• Plural form of isoseismal. (noun)

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• "It will be seen that they differ considerably in form, but at the same time they present certain points of agreement, such as the east and west elongation of the meizoseismal area, and the great extension of the two outer isoseismals towards the west and south-west The greatest difference is to be found in the eastern portion of the third isoseismal, which, according to the"
• "It is clear, also, that the impulse at the Woodstock focus was the stronger of the two; for the isoseismals spread out more widely round the corresponding epicentre, and there was no rapid decline of intensity from that point, such as might be associated with a weaker disturbance within a shallow focus."
• "Again, the isoseismals are farther apart towards the south-east than towards the north-west, implying that the fault hades to the south-east."