I assume you removed the locking bolts.
Having the machine on a wood floor, may make it vibrate more. If the machine is sitting on a cement floor with a hard rubber industrial mat under the machine, it should be more stable once it settles in.
I have done home installations where I used a 120 lbs cement slabtile for each of the washer and dryer, with an industrial shock resist type mat under each of the machines directly. Since the cost is not great, I do the same for the dryer to match.
We have done some industrial washing machines where we torque bolted the machines directly to the cement floor, with hard rubber shock mounts under the feet. This way, they never move, and never vibrate very much.
The above is done only after verifying that the machines are in proper working condition.
In the case of a new washing machine, it is best to call the service rep and have them come to your place for a service call. This way, you will have verification that your machine is working properly. Let them suggest their way of stopping the machine from vibrating, if there is no fault to be found.
From our experience, we found front loading washers sometimes have a tendancy to vibrate more than the top loaders. But, the front loaders are much more efficient, and have much greater cost savings over the long run.