Case 1/Analysis of Singularity of Neighborhood Iki-Tsushima Epicenter(壱岐・対馬近海) Group

 According to the Japan Meteorological Agency (JMA) database, there are only nine recorded earthquakes in the Neighborhood of Iki-Tsushima (壱岐・対馬近海) epicenter group, listed below in chronological order:

[Table of 9 earthquakes in Neighborhood of Iki-Tsushima(壱岐・対馬近海) ]

The term "Grid Element" refers to a small block of the hypocenter defined by Longitude (0.1° units), Latitude (0.1° units), and Depth (1 km units). The Longitude and Latitude shown on the far right of the table are the original values before rounding. (The "Number of Stage" will be explained later in other blog page).

First, the transition of the epicenters in terms of Longitude and Latitude is shown below. The labels represent the magnitude of each earthquake.

Starting from an earthquake of unknown(不明) magnitude slightly to the right of the center, the activity appears to transition in a counter-clockwise direction overall, beginning from the M3.8 event that followed a second unknown(不明) magnitude event.

The figure below highlights the epicenter group indicated by the yellow labels. These points lie on a perfectly straight line with a correlation coefficient of 1, suggesting they likely occurred along a specific fault line. What is particularly noteworthy is that the three consecutive earthquakes shown in bold in the initial table are the ones demonstrating this perfect correlation. It is statistically improbable for any three epicenters out of nine to show perfect correlation by chance; for those three to be consecutive makes the idea of a coincidence even more unnatural.

The figure below shows the transition of the remaining epicenters after excluding the M4/M3.4/M3.8 on a straight line. The result is a clean, counter-clockwise loop enclosing a triangular region.

Given that the entire epicenter group (including the yellow labels) was transitioning counter-clockwise, it can be interpreted that the activity "detoured" as it was caught by a fault. This clearly illustrates how crustal fracturing was progressing in a counter-clockwise manner in the Neighborhood Iki-Tsushima(壱岐・対馬近海) area.

This concludes the prologue intended to demonstrate that earthquakes are governed by specific rules.