'Our wardrobe has been moved' Britons shout as 'roaring' earthquake strikes with 1.5-magnitude tremors shaking locals awake

A “ROARING” magnitude 1.5 earthquake has woken up Brits – with locals saying “our wardrobe has moved”.

Vibrations of the Snowdonia Last Thursday's earthquake was felt up to 25km away in Gwynedd and Anglesey.

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The British Geological Survey said the earthquake's epicenter was eight miles underground, near Foel Grach Welsh Mountain range.

Locals talked about how the magnitude was 1.5 earthquake “roared like a strong wind”.

Another resident in the earthquake zone noticed “a rumbling sound for only a few seconds.”

But most people slept through last Thursday's earthquake at 12:48 p.m.

Last month the The Scottish Highlands were hit by two earthquakes in space at nine o'clock.

But how do earthquakes occur, and where have the strongest earthquakes been recorded?

What causes an earthquake?

The Earth's crust is made up of several pieces known as tectonic plates.

These plates fit together like a puzzle and continuously move at a rate of several centimeters per year, in different directions and at different speeds.

It is common for plates to slide past each other, collide with each other and move away from each other.

As plates continue to move in different directions for extended periods of time, friction causes energy to build up.

Eventually it becomes so large that the energy is released, creating a shock wave: an earthquake.

As the earthquake If it is under the ocean, it can create a series of huge waves called a tsunami.

Earthquakes occur every day around the world, some of which are so small that they can only be detected using specialist equipment.

Others can be powerful enough to damage and destroy towns and cities.

The magnitude of such earthquakes would be measured on the Richter scale.

There are earthquakes in Britain, but they are rare and so small that most people do not feel them.

How is size measured?

Magnitude is the most common measure of an earthquake's strength.

Normally, magnitude is recorded by measuring the amplitude of seismic waves recorded on a seismometer.

Seismometers are instruments that respond to sounds and vibrations in the ground.

A magnitude reading is typically represented by a small number.

The interesting thing about magnitude is that it increases on a logarithmic scale with base 10.

So every time the number increases by one, the amplitude is actually ten times greater.

This means that an earthquake with a magnitude of 4 is not twice as strong as an earthquake with a magnitude of 2, but 100 times.

The strongest quake ever measured had a magnitude of about 9.4 to 9.6.