The Pacific is under high alert following a massive earthquake registering 8.8 in magnitude that struck off the coast of Russia near the Kamchatka Peninsula. The tremor occurred at around 11:25 AM local time on Wednesday, prompting widespread tsunami warnings spanning several countries across the Pacific.

In a response to the earthquake, millions of residents in Japan, Russia, and portions of the United States have been instructed to evacuate. Alerts are also in place for China, the Philippines, Indonesia, New Zealand, and distant regions like Peru and Mexico.

Initial reports demonstrate significant damage in Severo-Kurilsk, where videos captured large waves inundating buildings. Authorities noted the flooding of the port and a fish processing facility and reported damage to the power grid in Russia's Sakhalin region. Similarly, in Japan, nearly 1.9 million people have been urged to seek higher ground, with some residents taking refuge atop buildings in Hokkaido.

In Hawaii, officials issued warnings of waves potentially reaching 10 feet, although Hawaii's governor, Josh Green, noted there were no significant waves observed yet. An all-clear announcement is not anticipated for several more hours.

Scientists are still analyzing the earthquake's impact, explaining that the tsunami's extent may vary significantly based on local conditions. Chris Goldfinger, a marine geology expert, indicated that areas directly in line with the energy emanating from the Kamchatka Peninsula are most likely to feel the brunt of the tsunami, which is projected to take about eight to nine hours to reach the US West Coast.

The earthquake's time of occurrence was about 11:25 AM local time (00:25 AM BST), with tsunami waves expected to reach parts of British Columbia and California around 12:20 AM local time (09:20 AM BST). Waves impacting Nome, Alaska, are estimated to arrive at 03:20 AM local time (12:20 PM BST).

The United States Geological Survey characterized the earthquake as relatively shallow, occurring at a depth of 19.3 kilometers (12 miles). Initially recorded as magnitude 8.0, it was later revised upwards. Strong aftershocks have been reported, and this earthquake has been noted as the sixth most powerful in history. Comparatively, the 2004 Indian Ocean earthquake and tsunami, which resulted in over 227,000 casualties, registered between 9.2 to 9.3 on the Richter scale.

As this situation continues to develop, authorities and experts remain vigilant in monitoring the tsunami's trajectory and potential impacts across the Pacific region.