Servo motor control

Hello, I have tested without any motor, only with the PWM pin conected to osciloscope, also I have to say that the "vibration" is more close to 2,5 us. Isn't to much but it is enogh to feel it.
Thanks!

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

void setup() {
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {  
  myservo.write(60);                  // sets the servo position according to the scaled value
  delay(15);                           // waits for the servo to get there
}