Update FindEventsSameAreaSelectionListener.java

src/main/java/io/github/albertus82/eqbulletin/gui/listener/FindEventsSameAreaSelectionListener.java

@@ -79,7 +79,7 @@ private static double computeArea(final double lat0deg, final double lat1deg, fi
 		final double lon1rad = Math.toRadians(lon1deg);
 		final double a = Math.sin(lat1rad) - Math.sin(lat0rad);
 		final double b = lon1rad - lon0rad;
-		final double c = Math.pow(AUTHALIC_RADIUS, 2);
+		final double c = AUTHALIC_RADIUS * AUTHALIC_RADIUS;
 		return a * b * c;
 	}