diff --git a/README.md b/README.md
index 09c7118b..d8bfbde3 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ Configure Options:
 0.14.13 -  
 - Reverted: Pheromone generation tweaks from 0.14.11  
 - Feature: Recycling large biter swarms that are stuck (causes a big attack wave, and pops up a message)  
-- Feature: Biters destroying player buildings will attract other unit groups  
+- Feature: Breaching, Biters destroying player buildings will attract other unit groups  
 - Tweak: Reduced unit group max size from 600 to 450  
 - Tweak: Reduced unit group radius from 30 to 20  
 - Fix: Unit groups merging during combat  
diff --git a/control.lua b/control.lua
index 80cecef4..94934632 100644
--- a/control.lua
+++ b/control.lua
@@ -198,7 +198,7 @@ local function onTick(event)
 	local players = game.players
 	
 	processPendingChunks(regionMap, surface, pendingChunks)
-	scanMap(regionMap, surface, natives, evolutionFactor, tick)
+	scanMap(regionMap, surface, natives, evolutionFactor)
 
 	if (tick == regionMap.logicTick) then
 	    regionMap.logicTick = regionMap.logicTick + INTERVAL_LOGIC
@@ -207,7 +207,7 @@ local function onTick(event)
 
 	    natives.retreats = MAX_RETREATS
 	    
-	    planning(natives, evolutionFactor, tick)
+	    planning(natives, evolutionFactor, tick, surface)
 	    
 	    regroupSquads(natives, evolutionFactor)
 	    
diff --git a/libs/AIPlanning.lua b/libs/AIPlanning.lua
index 9387bcda..3db816d2 100644
--- a/libs/AIPlanning.lua
+++ b/libs/AIPlanning.lua
@@ -18,6 +18,8 @@ local AI_MIN_TEMPERAMENT_DURATION = constants.AI_MIN_TEMPERAMENT_DURATION
 local AI_MAX_STATE_DURATION = constants.AI_MAX_STATE_DURATION
 local AI_MAX_TEMPERAMENT_DURATION = constants.AI_MAX_TEMPERAMENT_DURATION
 
+local TICKS_A_MINUTE = constants.TICKS_A_MINUTE
+
 -- imported functions
 
 local randomTickEvent = mathUtils.randomTickEvent
@@ -26,7 +28,7 @@ local mMax = math.max
 
 -- module code
 
-function aiPlanning.planning(natives, evolution_factor, tick)
+function aiPlanning.planning(natives, evolution_factor, tick, surface)
     local maxPoints = AI_MAX_POINTS * evolution_factor
     if (natives.points < maxPoints) then
 	natives.points = natives.points + math.floor((AI_POINT_GENERATOR_AMOUNT * math.random()) + ((AI_POINT_GENERATOR_AMOUNT * 0.7) * (evolution_factor ^ 2.5)))
@@ -45,7 +47,12 @@ function aiPlanning.planning(natives, evolution_factor, tick)
 	    natives.state = AI_STATE_AGGRESSIVE
 	end
 	natives.stateTick = randomTickEvent(tick, AI_MIN_STATE_DURATION, AI_MAX_STATE_DURATION)
-    end 
+    end
+
+    if (natives.state == AI_STATE_AGGRESSIVE) and (tick - natives.lastShakeMessage > TICKS_A_MINUTE * 5) and (natives.points > AI_MAX_POINTS) then
+	natives.lastShakeMessage = tick
+	surface.print("Rampant: The ground begins to shake")
+    end
 end
 
 return aiPlanning
diff --git a/libs/MapProcessor.lua b/libs/MapProcessor.lua
index d6c2a399..21a18a18 100644
--- a/libs/MapProcessor.lua
+++ b/libs/MapProcessor.lua
@@ -32,8 +32,6 @@ local MOVEMENT_PHEROMONE = constants.MOVEMENT_PHEROMONE
 local PLAYER_BASE_GENERATOR = constants.PLAYER_BASE_GENERATOR
 local BUILDING_PHEROMONES = constants.BUILDING_PHEROMONES
 
-local TICKS_A_MINUTE = constants.TICKS_A_MINUTE
-
 -- imported functions
 
 local scents = pheromoneUtils.scents
@@ -193,7 +191,7 @@ end
 --[[
     Passive scan to find entities that have been generated outside the factorio event system
 --]]
-function mapProcessor.scanMap(regionMap, surface, natives, evolution_factor, tick)
+function mapProcessor.scanMap(regionMap, surface, natives, evolution_factor)
     local index = regionMap.scanPointer
     
     local processQueue = regionMap.processQueue
@@ -233,11 +231,6 @@ function mapProcessor.scanMap(regionMap, surface, natives, evolution_factor, tic
 	    if (natives.points > (AI_MAX_POINTS * 3)) then
 		natives.points = (AI_MAX_POINTS * 3)
 	    end
-
-	    if (tick - natives.lastShakeMessage > TICKS_A_MINUTE * 5) then
-		natives.lastShakeMessage = tick
-		surface.print("Rampant: The ground begins to shake")
-	    end
 	end
 
 	local playerBaseGenerator = 0