Geometry of Earth's crust-distinct from the Mantle

 Now-2020- Mt. St. Helens is 684/3= 228 km, with 6km displacement from 222 km sided equilateral triangle. ET reaches to anomalies shown below: First, below, is a trench-sink offsetting the volcanic rise; further below are Hot springs near Mt. Olympus in Washington state:  Total ET has the “Big picture” of anomalous springs and Pacific Ocean’s Seafloor arc >) pointing to the dormant killer: Anatahan is a regularly erupting volcanic island in the Mariana’s archipelago; the large ET view may yield the reason why a triangular approach occurs. Below is the Google Earth view of it: 684/3= 228 km- 6 above the 222 km on the first limb from the island    Question now is: should 20 x 111=2,220 km be measured, or 2,222?  6,868/3=2,289km, 67 above the 2,222 selected for the first limb. Above are the coordinates for this unoccupied island.  Above, it appears that 2,220 km would have reached the island to the upper right; use multiples of 111- 2,220 km in this case! Below, a

Malta’s 6,403 km perimeter/3= 2,168 km-sided equilateral triangle, or 54 km shy of the 2,222 km distance to Santorini archipelago (2.5 percent)- which was a killer some 3600 years ago (1580BC), and it’s still active! Above is the faulted slice pointing to Santorini,   and below is an island offshore Turkey- which is part of the archipelago:  Damming of the Nile River above has influenced Malta via retaining mass which previously went to the Mediterranean Sea; below shows the south part- which is closer to the delta:  Subsea Vulcanism shown as a dark rise below has formed another ET=656/3=218.7 km sided equilateral triangle of 222 km measured (showing the error of the measure):  Above 4.1M near Malta formed a corner of an equilateral triangle ET, and 677/3= 225.7 km, or excess 3.7, 1.5 percent deviation from 222. Below is the first corner from Malta’s quake: Malta Island is not centered in the triangle, but an subsea ridge is part of the young archipelago: Malta