THIS is the nerve-wracking moment doctors continue performing cancer surgery on a patient during the monster Russian 8.8 magnitude earthquake.

The massive quake hit off Russia’s far eastern Kamchatka peninsula on Wednesday, the US Geological Survey said, wreaking chaos across the Pacific.

The quake struck about 84 miles out at sea at around 7.24pm EST (12:30am BST) at a shallow depth of 19.3km (12 miles).

It is the largest since the 2011 monster which led to a tsunami that caused the Fukushima nuclear disaster.

Now unbelievable footage has emerged of doctors managing to continue performing surgery while the horror quake unfolded.

The brave doctors in Russia are captured looking at one another as the apparatus around them begins to shake.

One is seen desperately holding onto instruments before one falls to the floor.

The other surgeons managed keep their hands still over the patient as the quake rocks their bodies.

They all appear to look around in desperation for any help while all the room continues to tremble.

The doctors then appear to bravely continue the cancer operation despite the chaos.

The patient, under anaesthetic, remains laying on the table as another surgeon lifts up the sheet covering their face – presumably to check everything is fine.

Tsunami alerts have now spread to South America after the sixth biggest recorded tremor ever saw nearly 2million people earlier evacuated from Japan’s coasts.

Huge aftershocks continue to hit the area and resulting tsunamis could last for more than a day.

Waves have already hit Russia, Japan, Hawaii, and California.

A 4m (13ft) high wave was recorded on the southern tip of Kamchatka with waves inundating low lying areas and thousands evacuating.

Hawaii has seen waves nearly 6ft high, but officials believe the worst might be over and have downgraded warnings.

A Brit family holidaying on the island revealed to The Sun how they are stranded on the 16th floor of their hotel as the first tsunami waves hit the island.

Some 1.9m people in Japan have been ordered to evacuate with a 1.3m (4ft) wave hitting the country.

It’s a nightmare scenario for the country that suffered a nuclear disaster at Fukushima in 2011 caused by a tsunami.

Workers from the nuclear plant have been evacuated and are monitoring it remotely.

Tsunami warnings are in place for as far away as Colombia, Peru, and Ecuador.

Waves have also hit the mainland US, including California, Oregon, and Washington.

President Donald Trump posted following the quake: “Due to a massive earthquake that occurred in the Pacific Ocean, a Tsunami Warning is in effect for those living in Hawaii.

“A Tsunami Watch is in effect for Alaska and the Pacific Coast of the United States. Japan is also in the way. Please visit tsunami.gov/ for the latest information. STAY STRONG AND STAY SAFE!”