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Lava intrusions are caused when viscous lava is erupted slowly from a vent. If the lava is viscous enough, it will pile up above the vent to form a dome instead of flowing down the slopes.

Mode of action: combustion, wrenching, burial, pressure

Distance: (average) 0.1-1 km
Temperature : 750 - 1500 °C
Speed : (average): < 1 m/s

Fires, explosions

Total destruction of human infrastructures and vegetation
 

On humans: Severe burns