What is role of focalising to Hyaloclastite type structures before Big Earthquake?(for especially Geophysicists)

I remember to expressions as seismic pre-alerts based on globalscale before Big Earthquakes by some environments...I will explain via this blog with some examples on my experiments to this expressions.

Thus,among my first detections into only 2019;

-->Philippines,Oct 29,M6.6!!!
-->Philippines,Dec 15,M6.6!!!

can summary as characteristic.

Where,I emphasize to role of swarmtype extraordinary seismic activities for "Tjörnes Fracture Zone"&"Krysuvik Volcanic Province"  before two important Earthquake event(You will remember to amazing seismicity conditions!!!)

Thus,I wondered that especially about geologic characteristics of Iceland Region(A development at what type geologic environment before Big Earthquake!!!).Conclusions are signing to Hyaloclastite Structures


What is Hyaloclastite Structure?

Breccia type structures that

1. Tuff-like and hydrated
2. Including to volcanic materials as ingredient

Where,Hydrated structure implies to "Hyrothermal Breccia Pipes".Common characteristics of this type structures summary as a "phreatic feeder dike system".So,pipe structure as a "diatreme columnar system".

Description of this structure environments based on swarmtype seismic activity:

1 Characterising with Caldera type tectonic elements

2 Role of feeding mechanisms of Groundwaters

3 Causing to swarm type seismic events as a conclusion of heating at Basaltic dike structure region with 1 and 2

Number of this type Earthquake events by extreme heating phenomena at Root Zone can reach to extraordinary degree.Congratulations!!!Yes,you understood to me.I mean that this type condition is a indicator before important Earthquake event into Wordscale.