diff --git a/app/src/main/java/de/edotzlaff/schockwelle/EarthquakeMapsActivity.java b/app/src/main/java/de/edotzlaff/schockwelle/EarthquakeMapsActivity.java
index 427f5b1..742512f 100644
--- a/app/src/main/java/de/edotzlaff/schockwelle/EarthquakeMapsActivity.java
+++ b/app/src/main/java/de/edotzlaff/schockwelle/EarthquakeMapsActivity.java
@@ -91,7 +91,7 @@ public class EarthquakeMapsActivity extends FragmentActivity implements OnMapRea
         setContentView(R.layout.activity_earthquake_maps);
 
         //Database Init
-        db.setMyWaveSpeed(2000);
+        db.setMyWaveSpeed(500);
         db.setMyAndroidID(Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID));
         WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
         int ip = wm.getConnectionInfo().getIpAddress();
diff --git a/app/src/main/java/de/edotzlaff/schockwelle/MainActivity.java b/app/src/main/java/de/edotzlaff/schockwelle/MainActivity.java
index ecbeef6..2d1c3bb 100644
--- a/app/src/main/java/de/edotzlaff/schockwelle/MainActivity.java
+++ b/app/src/main/java/de/edotzlaff/schockwelle/MainActivity.java
@@ -35,7 +35,7 @@ public class MainActivity extends FragmentActivity {
         if (isServiceOK()){
             //Für Dantenbank
 
-            db.setMyWaveSpeed(2000);
+            db.setMyWaveSpeed(500);
             db.setMyAndroidID(Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID));
 
             WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
diff --git a/app/src/main/java/de/edotzlaff/schockwelle/SensorMapsActivity.java b/app/src/main/java/de/edotzlaff/schockwelle/SensorMapsActivity.java
index fff1097..7404dfe 100644
--- a/app/src/main/java/de/edotzlaff/schockwelle/SensorMapsActivity.java
+++ b/app/src/main/java/de/edotzlaff/schockwelle/SensorMapsActivity.java
@@ -89,7 +89,7 @@ public class SensorMapsActivity extends FragmentActivity implements OnMapReadyCa
 
         //Database Init
 
-        db.setMyWaveSpeed(2000);
+        db.setMyWaveSpeed(500);
         db.setMyAndroidID(Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID));
         WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
         int ip = wm.getConnectionInfo().getIpAddress();