Avalanches have a geological trigger

All mountain ranges in temperate zones are prone to and vulnerable to avalanches.  Avalanches are not because of climate change, rather they have geological triggers like seismic disturbances, subsidence in fault lines, rock slides, landslide mudslides  below the sow surface. 

These snow clad slopes trigger avalanches at the slightest uplift in the rock subsurface below. Mountains are terrestrial fault lines visible overground. They are subject to magmatic uplift and hence avalanches have seismic triggers  and geological factors.  

 The rocks slide / slope trigger snow slips that lead to avalanche. Surprisingly, preventing land degradation through effective land use planning and re-greening sustainably hold the key to preventing disasters from avalanches to communities living at the base of avalanche prone mountains.

The starting moments of an avalanche. The pine forest below can prevent the avalanche at steeper angles. Green cover is the undeniable factor in preventing disasters on the human landscape from geological calamities like Avalanche. 

Here we see rocks rendered into ice and snow. Unstable rock trigger avalanches. 

In the far ground here we see glacial melt in the summer. This is not to be confused with avalanches. glacial melt is because of unusually warm temperatures in summer . If glacial melt is happening because of climate change can be determined only after research and documentation of half a dozen El Nino cycles. Yes there is no denying the current climate change  

The beginnings of an avalanche following a rock slip is visible in this picture. 

A telling picture of geological evidence of an avalanche trigger. 

Glacier is a river of slow moving snow and not to be confused with avalanche. Shaped by mountain crevices sinkholes valleys and mountain ridges glacial geology is a wholly different theme of study. Glacial melt can trigger sea level rise substantially, dramatically. 

 The hurtling snow is the first wave of the avalanche.

Snowmobiles and avalanche forecasters rely heavily on technology to prevent avalanche induced disasters to communities living in the valleys. The Swiss Avalanche Forecasting Centre has some best practices worth emulating in mitigating avalanche induced disasters. 

 Building roads and highways are a recipe for disasters in avalanche prone areas.

 This picture reveals a huge block of snow having slipped off. The only geological evidence here is uplift of the rock mass beneath the surface of the mountain.

 The start of avalanches are invariably characterised by rock slips like this.

 Rocks gather momentum once the rock slide commences. This triggers avalanche

 Here a landslide without snow surface clearly reveals the cause of an avalanche in snow covered winter months.

Powdered snow is actually smaller rock particles rolling down beginning  an avalanche slide. As it gains mass and momentum the avalanche is a deathly snow slide that can kill and maim communities downstream.