00:00A massive 7.8 earthquake just shook Russia's eastern coast.
00:04And for a moment, the Pacific braced for a deadly tsunami.
00:08Emergency alerts rang out across Alaska, Hawaii, and the U.S. West Coast.
00:12A tsunami advisory was issued for the remote Aleutian Islands.
00:16People were told to stay away from beaches and waterways.
00:19In Hawaii, there were tense hours of waiting.
00:22But no tsunami waves hit, and the all-clear was finally given.
00:26This earthquake comes less than two months after an 8.8 monster quake in the same region.
00:32That one did send waves racing across the ocean.
00:35Water levels surged over 9 feet in Maui in just 18 minutes.
00:39The ocean rose and fell rapidly for hours, flooding some low-lying areas.
00:43So how does the U.S. spot tsunamis so fast?
00:46A network of underwater buoys and sensors called DART detects and tracks ocean changes in real time.
00:52It's a high-tech system built to save lives.
00:54Tsunamis can strike with terrifying speed, traveling up to 30 miles per hour.
00:59If you ever see the oceans suddenly recede or rise, run.
01:03Get inland and to high ground.
01:05Every second matters.
01:07This time, disaster was avoided.
01:09But nature's warning couldn't be louder.
01:11This time, disaster was done.
01:13This time, disaster was avoided.
01:13This time was funded.
01:13This time, disaster was anchored by a-
01:16That nobody memorized hashtag a-
01:16It's a precursor for solar!
01:18This time, ge Cul.
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01:19This time isienza from disastrous ult
01:32and experts were forefront.
01:33This time, disaster was meter.
01:35You are gone.
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01:38To do while.
01:38Let's hear it together.
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