diff --git a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/Script.c b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/Script.c
index 78b8fd441..e0ecade50 100644
--- a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/Script.c
+++ b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/Script.c
@@ -132,3 +132,25 @@ protected func FxIntEarthquakeTimer(object target, effect, int time)
 /*-- Proplist --*/
 
 local Name = "$Name$";
+
+
+/* Editor */
+
+public func Definition(def, ...)
+{
+	UserAction->AddEvaluator("Action", "Disasters", "$LaunchEarthquake$", "$LaunchEarthquakeHelp$", "launch_earthquake", [def, def.EvalAct_LaunchEarthquake], { Strength={Function="int_constant", Value=50} }, { Type="proplist", Display="{{Position}}, {{Strength}}", EditorProps = {
+		Position = new UserAction.Evaluator.Position { EditorHelp="$PositionHelp$" },
+		Strength = new UserAction.Evaluator.Integer { Name="$Strength$", EditorHelp="$StrengthHelp$" },
+		} } );
+}
+
+private func EvalAct_LaunchEarthquake(proplist props, proplist context)
+{
+	// Earthquake through user action
+	var position = UserAction->EvaluatePosition(props.Position, context);
+	var strength = UserAction->EvaluateValue("Integer", props.Strength, context);
+	if (strength > 0)
+	{
+		LaunchEarthquake(position[0], position[1], strength);
+	}
+}
diff --git a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblDE.txt b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblDE.txt
index c36803d38..17865862a 100644
--- a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblDE.txt
+++ b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblDE.txt
@@ -1 +1,6 @@
 Name=Erdbeben
+LaunchEarthquake=Erdbeben
+LaunchEarthquakeHelp=Laesst die Erde wackeln, Objekte schleudern und lose Materialien herunter fallen.
+PositionHelp=Wo die Erde wackelt.
+Strength=Staerke
+StrengthHelp=Radius und Staerke des Wackelns.
diff --git a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblUS.txt b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblUS.txt
index ceccb25f7..05b29dcf9 100644
--- a/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblUS.txt
+++ b/planet/Objects.ocd/Environment.ocd/Disasters.ocd/Earthquake.ocd/StringTblUS.txt
@@ -1 +1,6 @@
 Name=Earthquake
+LaunchEarthquake=Earthquake
+LaunchEarthquakeHelp=Shakes the ground, flings objects and drops loose materials.
+PositionHelp=Where the earth shakes.
+Strength=Strength
+StrengthHelp=Radius and strength of the shaking.
\ No newline at end of file
diff --git a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/Script.c b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/Script.c
index 694121c3f..528181c64 100644
--- a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/Script.c
+++ b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/Script.c
@@ -26,7 +26,7 @@ local EvaluatorDefs;
 local DefinitionPriority=99;
 
 // Localized group names
-local GroupNames = { Structure="$Structure$", Game="$Game$", Ambience="$Ambience$" };
+local GroupNames = { Structure="$Structure$", Game="$Game$", Ambience="$Ambience$", Disasters="$Disasters$" };
 
 // Storage for global user variables
 static g_UserAction_global_vars;
diff --git a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblDE.txt b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblDE.txt
index e81b9d950..8f0244d55 100644
--- a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblDE.txt
+++ b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblDE.txt
@@ -15,6 +15,7 @@ UserAny=Wert
 Default=Standard
 Structure=Gebaeude
 Game=Spiel
+Disasters=Katastrophen
 None=Nichts
 Noone=Niemand
 AllPlayers=Alle Spieler
diff --git a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblUS.txt b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblUS.txt
index f6e3b4483..d39126002 100644
--- a/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblUS.txt
+++ b/planet/Objects.ocd/Helpers.ocd/UserAction.ocd/StringTblUS.txt
@@ -15,6 +15,7 @@ UserAny=Value
 Default=Default
 Structure=Structure
 Game=Game
+Disasters=Disasters
 None=Nothing
 Noone=Noone
 AllPlayers=All players