Tsunami Warning, July 30 -- A powerful 8.8-magnitude earthquake struck off Russia's far eastern Kamchatka Peninsula, triggering a Pacific Ocean Tsunami warning on July 29.

The quake was shallow at a depth of 19.3 km (12 miles), and was centred about 125 km (80 miles) east-southeast of Petropavlovsk in Russia's Kamchatka peninsula along the coast of Avacha Bay, the US Geological Survey (USGS) said as it revised the magnitude up from 8.0 earlier.

Scary videos on social media showed shaking visuals recorded inside buildings, with damage reported at multiple places.

Is it the worst-ever Tsunami ever? What does 8.8 magnitude on richter scale mean?

The Global Historical Tsunami Database contains information about over 1,200 confirmed tsunam...