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aftershocks M4.0 and larger within 48 hours after 1/23/18 quake

By Communications and Publishing
colored map of part of southern Alaska, and part of Gulf of Alaska, showing a cluster of yellow and orange dots offshore.
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Detailed Description

60 aftershocks greater than or equal to M4.0 occurred in the first 48 hours after the mainshock. The blue dot is the location of the main Jan 23 earthquake. Yellow and orange dots are aftershock epicenters.

Sources/Usage

Public Domain.

public domain

Source